CN117408856B

CN117408856B - Pollutant tracing method and device, storage medium and electronic equipment

Info

Publication number: CN117408856B
Application number: CN202311704939.1A
Authority: CN
Inventors: 赵文龙; 田旭东; 沈加思; 徐冰烨; 王晓元; 李云鹏; 王伯光; 王好; 李将永; 金玲玲; 徐圣辰; 邹巧莉; 章�露�; 孔志燕; 蔡志铭
Original assignee: Zhejiang Ecological Environment Monitoring Center Zhejiang Ecological Environment Information Center; Jinan University
Current assignee: Zhejiang Ecological Environment Monitoring Center Zhejiang Ecological Environment Information Center; Jinan University
Priority date: 2023-12-13
Filing date: 2023-12-13
Publication date: 2024-03-26
Anticipated expiration: 2043-12-13
Also published as: CN117408856A

Abstract

The invention provides a pollutant tracing method, a pollutant tracing device, a storage medium and electronic equipment, wherein the method comprises the following steps: determining N pieces of precursor heat information of each target grid area based on the acquired pollutant emission list, wherein the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area or not; grid marking is carried out on a plurality of target grid areas based on the N precursor heat information of each target grid area, so as to obtain a plurality of marked grid areas; determining a plurality of transmission contributing objects based on the plurality of tagged mesh regions; and carrying out pollutant tracing on each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area. The embodiment of the invention can reduce the calculated amount, thereby rapidly realizing the fine tracing of a plurality of target grid areas.

Description

Pollutant tracing method and device, storage medium and electronic equipment

Technical Field

The invention relates to the technical field of air pollution control, in particular to a pollutant tracing method, a pollutant tracing device, a storage medium and electronic equipment.

Background

At present, the tracing of pollutants is an important premise of scientific prevention and control of atmospheric pollution, and various pollutants can be traced to improve the quality of the ambient air; secondary pollutants (such as ozone and the like) serve as primary pollutants, and become key factors for limiting the improvement of the quality of the ambient air. In the prior art, although the secondary pollutant change process can be simulated to realize pollutant tracing, the calculation amount is large, and particularly, the fine grid division is performed on the designated area, so that the fine tracing of a plurality of divided target grid areas is realized. Based on the method, how to reduce the calculation amount, thereby quickly realizing the fine tracing of a plurality of target grid areas becomes a research hotspot.

Disclosure of Invention

In view of the above, the embodiment of the invention provides a pollutant tracing method, a pollutant tracing device, a storage medium and electronic equipment, so as to solve the problems that the calculated amount is large in the pollutant tracing process, and the fine tracing of a plurality of target grid areas is difficult to realize; that is, the embodiment of the invention can reduce the calculation amount, thereby realizing the fine tracing of a plurality of target grid areas.

According to an aspect of the present invention, there is provided a contaminant tracing method, the method comprising:

Acquiring a pollutant emission list, wherein the pollutant emission list comprises at least one pollutant source data in each target grid region in a plurality of target grid regions, one pollutant source data comprises emission information of each precursor in M precursors of the target pollutant under a corresponding pollutant source, and M is a positive integer;

determining N pieces of precursor heat information of each target grid area based on the pollutant emission list, wherein the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area, each piece of precursor heat information in the N pieces of precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold, and N is a positive integer smaller than or equal to M;

grid marking is carried out on the plurality of target grid areas based on the N precursor heat information of each target grid area to obtain a plurality of marked grid areas, wherein one marked grid area comprises one hot spot area or at least one non-hot spot area in the plurality of target grid areas;

determining a plurality of transmission contribution objects based on the plurality of marking grid areas, wherein one transmission contribution object corresponds to one marking grid area;

And carrying out pollutant tracing on each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area.

According to another aspect of the present invention, there is provided a contaminant tracing apparatus, the apparatus comprising:

an acquisition unit, configured to acquire a pollutant emission list, where the pollutant emission list includes at least one pollution source data in each of a plurality of target grid areas, and one pollution source data includes emission information of each of M precursors of a target pollutant under a corresponding pollution source, where M is a positive integer;

the processing unit is used for determining N pieces of precursor heat information of each target grid area based on the pollutant emission list, the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area, each piece of precursor heat information in the N pieces of precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold, and N is a positive integer smaller than or equal to M;

the processing unit is further configured to perform grid marking on the plurality of target grid areas based on the N precursor heat information of each target grid area, so as to obtain a plurality of marked grid areas, where one marked grid area includes one hot spot area or at least one non-hot spot area in the plurality of target grid areas;

The processing unit is further configured to determine a plurality of transmission contribution objects based on the plurality of marked grid areas, where one transmission contribution object corresponds to one marked grid area;

and the processing unit is further used for tracing the pollutants to each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area.

According to another aspect of the invention there is provided an electronic device comprising a processor, and a memory storing a program, wherein the program comprises instructions which, when executed by the processor, cause the processor to perform the above mentioned method.

According to another aspect of the present invention there is provided a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the above mentioned method.

After the pollutant emission list is obtained, determining N pieces of precursor heat information of each target grid area based on the pollutant emission list, wherein the pollutant emission list comprises at least one pollutant source data in each target grid area in a plurality of target grid areas, one pollutant source data comprises emission information of each precursor in M pieces of precursor of the target pollutant under a corresponding pollutant source, and the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area or not, and the heat information of each precursor in the N pieces of precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold; then, grid marking can be performed on a plurality of target grid areas based on N pieces of precursor heat information of each target grid area to obtain a plurality of marked grid areas, wherein one marked grid area comprises one hot spot area or at least one non-hot spot area in the plurality of target grid areas, so that the target grid area with larger precursor heat information can be marked as one marked grid area, and at least one target grid area with smaller precursor heat information is marked as the same marked grid area, and the fusion marking of the refined mark of the hot spot area and the non-hot spot area can be realized. Further, a plurality of transmission contribution objects can be determined based on the plurality of marking grid areas, wherein one transmission contribution object corresponds to one marking grid area; and carrying out pollutant tracing on each target grid region based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid region, so that the number of the marked grid regions is reduced under the condition of ensuring the fine marking of the hot spot region, the number of the transmission contribution objects is reduced, the calculation amount of carrying out pollutant tracing on each target grid region is reduced under the condition of ensuring the accuracy of pollutant tracing, and the required calculation resource is effectively reduced. Therefore, the embodiment of the invention can effectively reduce the calculated amount, thereby rapidly realizing the fine tracing of a plurality of target grid areas.

Drawings

Further details, features and advantages of the invention are disclosed in the following description of exemplary embodiments with reference to the following drawings, in which:

FIG. 1 illustrates a flow diagram of a contaminant tracing method according to an exemplary embodiment of the invention;

FIG. 2 illustrates a schematic diagram of a plurality of marker grid regions according to an exemplary embodiment of the present invention;

FIG. 3 illustrates a flow diagram of another contaminant tracing method according to an exemplary embodiment of the invention;

FIG. 4 illustrates a flow diagram of yet another contaminant tracing method according to an exemplary embodiment of the invention;

FIG. 5 shows a schematic block diagram of a contaminant traceability device according to an exemplary embodiment of the invention;

fig. 6 shows a block diagram of an exemplary electronic device that can be used to implement an embodiment of the invention.

Detailed Description

Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the invention is susceptible of embodiment in the drawings, it is to be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided to provide a more thorough and complete understanding of the invention. It should be understood that the drawings and embodiments of the invention are for illustration purposes only and are not intended to limit the scope of the present invention.

It should be understood that the various steps recited in the method embodiments of the present invention may be performed in a different order and/or performed in parallel. Furthermore, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the invention is not limited in this respect.

The term "including" and variations thereof as used herein are intended to be open-ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments. Related definitions of other terms will be given in the description below. It should be noted that the terms "first," "second," and the like herein are merely used for distinguishing between different devices, modules, or units and not for limiting the order or interdependence of the functions performed by such devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those skilled in the art will appreciate that "one or more" is intended to be construed as "one or more" unless the context clearly indicates otherwise.

The names of messages or information interacted between the devices in the embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of such messages or information.

It should be noted that, the execution body of the contaminant tracing method provided by the embodiment of the present invention may be one or more electronic devices, which is not limited in this aspect of the present invention; the electronic device may be a terminal (i.e. a client) or a server, and when the execution body includes a plurality of electronic devices and the plurality of electronic devices include at least one terminal and at least one server, the contaminant tracing method provided by the embodiment of the present invention may be executed jointly by the terminal and the server. Accordingly, the terminals referred to herein may include, but are not limited to: smart phones, tablet computers, notebook computers, desktop computers, smart watches, smart voice interaction devices, smart appliances, vehicle terminals, aircraft, and so on. The server mentioned herein may be an independent physical server, or may be a server cluster or a distributed system formed by a plurality of physical servers, or may be a cloud server that provides cloud services, cloud databases, cloud computing (cloud computing), cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network ), and basic cloud computing services such as big data and artificial intelligence platforms, and so on.

Based on the above description, an embodiment of the present invention proposes a contaminant tracing method, which may be performed by the above-mentioned electronic device (terminal or server); alternatively, the contaminant tracing method may be performed by both the terminal and the server. For convenience of explanation, the method for tracing the contaminant is executed by the electronic device in the following description; as shown in fig. 1, the contaminant tracing method may include the following steps S101 to S105:

s101, acquiring a pollutant emission list, wherein the pollutant emission list comprises at least one pollutant source data in each target grid region in a plurality of target grid regions, one pollutant source data comprises emission information of each precursor in M precursors of the target pollutant under a corresponding pollutant source, and M is a positive integer.

Wherein one pollution source data corresponds to one pollution source, and the pollution sources within one grid area may include, but are not limited to: industrial pollution sources, agricultural pollution sources, transportation pollution sources, and household pollution sources, etc.; the invention is not limited in this regard. Alternatively, the emission information may be an emission amount. Optionally, the target pollutant may be secondary pollutant such as ozone or sulfate aerosol, which is not limited in the present invention; alternatively, embodiments of the present invention may prefer ozone as the target contaminant; for convenience of explanation, the target pollutants will be described below as ozone.

The plurality of target grid areas may be a result of grid division of the designated area; alternatively, the area size of one target mesh area may be 9km (kilometer) ×9km, or may be 3km×3km, etc., which is not limited in the present invention; when the area size is smaller (such as 9km multiplied by 9 km), the precise division of the designated area can be realized, so that the grid precise tracing of the designated area can be realized. Alternatively, the designated area may be an area where a province is located, or may be an area where a city is located, which is not limited by the present invention.

In the embodiment of the present invention, the obtaining manner of the pollutant emission list may include, but is not limited to, the following several ways:

the first acquisition mode is as follows: the electronic device may acquire the manifest download link and download the emission manifest based on the manifest download link, in which case the electronic device may take the emission manifest downloaded based on the manifest download link as a pollutant emission manifest.

The second acquisition mode is as follows: the electronic device may store a plurality of emission lists therein, in which case the electronic device may select an emission list under a specified area and a specified simulation time range from the plurality of emission lists, thereby taking the selected emission list as the pollutant emission list. Alternatively, the specified analog time range may refer to any time range, which the present invention is not limited to.

The third acquisition mode is as follows: the electronic device may obtain an initial pollutant discharge list, which may include at least one pollutant source data within each of a plurality of initial grid regions included in the designated area, in which case the electronic device may determine the pollutant discharge list based on the initial pollutant discharge list and the plurality of target grid regions, and so on.

Alternatively, the M precursors may include, but are not limited to: at least one precursor belonging to volatile organic compounds (VOCs, volatile Organic Compounds) and at least one precursor belonging to Nitrogen Oxides (NOx), etc.; the invention is not limited in this regard. Alternatively, one of the precursors belonging to the volatile organic compound (i.e., the precursor belonging to the type of volatile organic compound) may be a single volatile organic compound (such as an alkane volatile organic compound, an arene volatile organic compound, an alkene volatile organic compound, etc.), or may be a collection including a plurality of single volatile organic compounds, which is not limited in this invention; alternatively, one precursor belonging to the nitrogen oxide (i.e., a precursor belonging to the nitrogen oxide type) may be a single nitrogen oxide (such as nitrogen monoxide and nitrogen dioxide, etc.), or may be a set including a plurality of single nitrogen oxides, which is not limited in the present invention. It can be seen that one precursor may be a single volatile organic compound, may be a set comprising a plurality of single volatile organic compounds, may be a single nitrogen oxide, may be a set comprising a plurality of single nitrogen oxides, etc.; the invention is not limited in this regard.

For example, the M precursors may include: one precursor belonging to a volatile organic compound and one precursor belonging to a nitrogen oxide, and in this case, the precursors belonging to a volatile organic compound among the M precursors may include all single volatile organic compounds, and in this case, the precursors belonging to a nitrogen oxide among the M precursors may include all single nitrogen oxides. As another example, the M precursors may include alkane volatile organic compounds, aromatic volatile organic compounds, ester volatile organic compounds, and the like, which are volatile organic compounds, and may also include nitric oxide, nitrogen dioxide, and the like, which are nitrogen oxides.

S102, determining N pieces of precursor heat information of each target grid area based on a pollutant emission list, wherein the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area, each piece of precursor heat information in the N pieces of precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold, and N is a positive integer smaller than or equal to M.

Alternatively, the heat information of one precursor may be determined based on the emission information of one precursor in the corresponding target grid area, or may be determined based on the emission information of each precursor in the corresponding target grid area, which is not limited in the present invention; wherein the emission information of one precursor in one target grid area comprises the emission information of the corresponding precursor in each pollution source data in the corresponding target grid area, i.e. the emission information of one precursor in one target grid area comprises the emission information of the corresponding precursor under each pollution source in the corresponding target grid area.

In the embodiment of the present invention, for any target grid region of the multiple target grid regions, if each precursor heat information of the N precursor heat information of any target grid region is greater than the corresponding precursor heat information threshold, then any target grid region may be used as a hot spot region; if the precursor heat information less than or equal to the corresponding precursor heat information threshold exists in the N precursor heat information of any target grid region, taking any target grid region as a non-hot spot region, so that a plurality of target grid regions can be divided into hot spot regions and non-hot spot regions. Alternatively, any precursor heat information threshold may be empirically set, or may be set according to actual requirements, which is not limited in this disclosure.

And S103, carrying out grid marking on the plurality of target grid areas based on the N precursor heat information of each target grid area to obtain a plurality of marked grid areas, wherein one marked grid area comprises one hot spot area or at least one non-hot spot area in the plurality of target grid areas.

Specifically, the electronic device may determine P hot spot areas and Q non-hot spot areas from the plurality of target grid areas based on the N precursor heat information of each target grid area, where P and Q are non-negative integers, and a sum of P and Q is equal to the number of target grid areas in the plurality of target grid areas; then, each of the P hotspot areas may be marked as a marking grid area, respectively; and carrying out region fusion on the Q non-hot-spot regions to obtain at least one fusion region, and respectively marking each fusion region in the at least one fusion region as a marked grid region so as to realize grid marking (namely region marking) on a plurality of target grid regions and obtain a plurality of marked grid regions.

For example, as shown in fig. 2, assuming that the number of target grid areas in the plurality of target grid areas is 16 and that the plurality of target grid areas includes 8 hot spot areas and 8 non-hot spot areas, after grid marking is performed on the plurality of target grid areas according to the hot spot areas and the non-hot spot areas, 10 marked grid areas can be obtained; wherein, 8 hot spot areas in the multiple target grid areas can be individually marked as one marking grid area, so that 8 marking grid areas are marked, and 8 non-hot spot areas can be integrally marked as a marking grid area 201 and a marking grid area 202, and the marking grid area 201 and the marking grid area 202 respectively comprise 4 non-hot spot areas, namely, at the moment, one integrally-formed area can be integrally formed with 4 non-hot spot areas.

In one embodiment, when performing region fusion on the Q non-hot-spot regions to obtain at least one fused region, the electronic device may perform region fusion on the Q non-hot-spot regions according to a preset region shape and/or a region range threshold to obtain at least one fused region. In this case, the region shape of any of the fused regions is a preset region shape, and/or the region size of any of the fused regions is less than or equal to the region range threshold; optionally, the preset area shape may be any area shape such as square, rectangle or irregular shape, which is not limited in the present invention; alternatively, the area range threshold may be set empirically, or may be set according to actual requirements, which is not limited in this invention.

In another embodiment, when performing region fusion on Q non-hotspot regions to obtain at least one fusion region, the electronic device may perform region fusion on Q non-hotspot regions according to an adjacent relationship between each non-hotspot region in the Q non-hotspot regions to obtain at least one fusion region, so that adjacent non-hotspot regions are fused into one fusion region. In this case, the electronic device may fuse all adjacent non-hot spot areas into one fused area, thereby obtaining at least one fused area; any two adjacent non-hot spot areas may be referred to as two non-hot spot areas with overlapping edges.

In another embodiment, when performing region fusion on Q non-hot regions to obtain at least one fusion region, the electronic device may determine a plurality of preset division regions, and perform region fusion on Q non-hot regions based on the plurality of preset division regions to obtain at least one fusion region, so that one fusion region is located in one preset division region, that is, the non-hot regions in different preset division regions are to be divided into different fusion regions. Optionally, the electronic device may perform region fusion on the Q non-hotspot regions based on an adjacent relationship between each of the multiple preset division regions and each of the Q non-hotspot regions, to obtain at least one fusion region, where adjacent non-hotspot regions in the same preset division region are divided into the same fusion region. Alternatively, the preset dividing area may be set empirically, or may be set according to actual requirements, which is not limited in the present invention.

S104, determining a plurality of transmission contribution objects based on the plurality of marking grid areas, wherein one transmission contribution object corresponds to one marking grid area.

In one embodiment, the electronic device may use a tagged grid region as a transmission contributing object, and the contaminant tracing process may refer to a process of identifying the effect of regional meshing on the target contaminant and the respective precursors.

In another embodiment, the electronic device may determine a plurality of transmission contributing objects based on the pollutant emission list and the plurality of tagged grid regions; in this case, the electronic device may determine a transmission contribution object based on any one of the marking grid regions and any pollution source in any one of the marking grid regions, where the one transmission contribution object is used to indicate the corresponding marking grid region and the corresponding pollution source, and then the pollutant tracing process may refer to an industrial gridding effect identification process for the target pollutant and each precursor. Wherein an industry may correspond to a pollution source (e.g., an industry may correspond to an industrial pollution source, etc.), that is, a pollution source data in a marking grid area may refer to industry emission information of a corresponding industry in a corresponding marking grid area. By way of example, assuming that the marker grid region 1 includes a contamination source a and a contamination source B, the electronic device may determine a transmission contribution object a based on the marker grid region 1 and the contamination source a, and determine a transmission contribution object B based on the marker grid region 1 and the contamination source B such that the transmission contribution object a includes the marker grid region 1 and the contamination source a (i.e., for indicating the marker grid region 1 and the contamination source a), and the transmission contribution object B includes the marker grid region 1 and the contamination source B.

Alternatively, the electronic device may use the transmission contribution object identifier to represent the transmission contribution object, and when one transmission contribution object is a marker grid region, one transmission contribution object identifier may be a marker grid region identifier; when a transmission contributing object comprises a marker grid region and a contamination source in the corresponding marker grid region, a transmission contributing object identification may comprise a marker grid region identification and a contamination source identification. Wherein one marker grid area identification is used for indicating the corresponding marker grid area and one pollution source identification is used for indicating the corresponding pollution source. Alternatively, the pollution source identifiers of the same pollution source in different grid areas are the same.

S105, performing pollutant tracing on each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area.

In a specific implementation, one target trace-out result may include trace-out results of the corresponding target grid region under each of the at least one transmission-contribution objects. In the embodiment of the invention, for any target grid region in a plurality of target grid regions, the electronic device can trace the pollutants on any target grid region based on the pollutant emission list and the plurality of transmission contribution objects to obtain an initial tracing result of any target grid region, wherein the initial tracing result comprises a tracing result of any target grid region under each transmission contribution object in the plurality of transmission contribution objects, and one tracing result of any target grid region comprises a target pollutant concentration contribution value of the corresponding transmission contribution object to any target grid region and concentration contribution values of all precursors. Optionally, the electronic device may invoke a target air quality model with a pollutant tracing function, and perform pollutant tracing on any target grid area based on the pollutant emission list and the plurality of transmission contribution objects, so as to obtain an initial tracing result of any target grid area; alternatively, the target air quality model may be CMAQ-ISAM (one air quality model), CAMx-OSAT (another air quality model), or the like, which is not limited in this aspect of the present invention; the ISAM (Integrated Source Apportionment Model, a source analyzing tool) is used as a source analyzing tool of the CMAQ (Community Multiscale Air Quality Modeling System, third generation air quality forecasting and evaluating system), and a single species labeling mode can be adopted to trace pollutants, so that the ISAM has single species tracing capability on VOCs and NOx, can reduce the uncertainty of analyzing ozone pollution sources, and can give out the source characteristics of ozone precursors, thereby realizing the refined tracing of ozone in any target grid area and precursors under single species; however, OSAT (Ozone Source Apportionment Technology, another source analysis tool) in CAMx (Comprehensive Air Quality Model Extensions, an air quality mode) can quantify the contribution characteristics of the emission of the pollution source in different regions to the ozone pollution of any target grid area, but the resolution of the ozone pollution source is not sufficiently fine, for example, all the species belonging to VOCs can be used as a precursor for tracing the pollutants. Optionally, the embodiment of the invention can preferably select CMAQ-ISAM as a target air quality model to improve the refinement degree of pollutant tracing, namely, the refinement degree of pollutant tracing on the contribution value of the concentration of the precursor.

Based on this, the electronic device may determine at least one object screening information for each of the plurality of transmission contribution objects based on the initial tracing result, one object screening information being determined based on a target contaminant concentration contribution value of the respective transmission contribution object to any of the target grid areas, and/or a concentration contribution value of each of the at least one precursor of the target contaminant; and selecting at least one traceability contribution object from the plurality of transmission contribution objects based on at least one object screening information of each transmission contribution object in the plurality of transmission contribution objects, wherein each object screening information of the at least one object screening information of one traceability contribution object is larger than a corresponding object screening information threshold value, so that a traceability result of any target grid area under each traceability contribution object in the at least one traceability contribution object is used as a target traceability result of any target grid area. Optionally, the object screening information threshold corresponding to the object screening information may be set empirically or may be set according to actual requirements, which is not limited in the present invention; optionally, the two object screening information thresholds may be the same or different, which is not limited in the present invention.

Optionally, for any transmission contribution object of the plurality of transmission contribution objects, the at least one object screening information for any transmission contribution object for any target mesh region (i.e., the at least one object screening information for any transmission contribution object) may include, but is not limited to: a target contaminant concentration contribution of any transmission contribution object to any target grid region, a concentration contribution of any transmission contribution object to each precursor of any target grid region, a weighted summation result between concentration contributions of any transmission contribution object to each precursor in at least one precursor of a target contaminant of any target grid region, and a weighted summation result between a target contaminant concentration contribution of any transmission contribution object to any target grid region and a concentration contribution of any transmission contribution object to each precursor in at least one precursor of a target contaminant of any target grid region, etc.; the invention is not limited in this regard.

In another specific implementation, one target tracing result may include tracing results of the corresponding target grid region under each transmission contribution object of the plurality of transmission contribution objects; in this case, the electronic device may use the initial tracing result as a target tracing result of any target grid region.

Based on the above description, the embodiment of the invention also provides a more specific contaminant tracing method. Accordingly, the contaminant tracing method may be performed by the above-mentioned electronic device (terminal or server); alternatively, the contaminant tracing method may be performed by both the terminal and the server. For convenience of explanation, the method for tracing the contaminant is executed by the electronic device in the following description; referring to fig. 3, the contaminant tracing method may include the following steps S301 to S306:

s301, a pollutant emission list is obtained, wherein the pollutant emission list comprises at least one pollutant source data in each target grid region in a plurality of target grid regions, one pollutant source data comprises emission information of each precursor in M precursors of the target pollutant under a corresponding pollutant source, and M is a positive integer.

S302, determining N pieces of precursor heat information of each target grid area based on a pollutant emission list, wherein the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area, each piece of precursor heat information in the N pieces of precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold, and N is a positive integer smaller than or equal to M.

In an embodiment of the present invention, the target contaminant may be ozone, and the N precursor heat information of one target grid area may include at least one of the following: the volatile organic compound heat information, the nitrogen oxide heat information, and the precursor integrated heat information of the corresponding target grid region, the precursor integrated heat information of one target grid region being determined based on the volatile organic compound heat information and the nitrogen oxide heat information of the corresponding target grid region.

In one embodiment, for the nth precursor heat information of any one of the plurality of target grid regions, if the nth precursor heat information is volatile organic compound heat information or precursor integrated heat information of any one of the target grid regions, the electronic device may determine a component activity list including each precursor belonging to the volatile organic compound among the M precursors, an activity coefficient under each pollution source in each target grid region, n e [1, n ]; then, a precursor emission set belonging to the volatile organic compound in any one of the target grid areas may be determined based on the pollutant emission list, the precursor emission set including emission information for each precursor belonging to the volatile organic compound under each pollution source in any one of the target grid areas; and a precursor activity set belonging to the volatile organic compound in any target grid region can be determined based on the component activity list, wherein the precursor activity set comprises the activity coefficient of each precursor belonging to the volatile organic compound under each pollution source in any target grid region, and emission information in the precursor emission set corresponds to the activity coefficients in the precursor activity set one by one. Further, the electronic device may multiply the emission information in the precursor emission set with the corresponding activity coefficient in the precursor activity set, respectively, to obtain the activity emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area; and weighting and summing the activity emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area to obtain a weighted summation result so as to determine nth precursor heat information based on the weighted summation result.

Optionally, if the nth precursor heat information is the volatile organic compound heat information of any target grid region, the electronic device may use the weighted summation result as the nth precursor heat information, that is, the weighted summation result as the volatile organic compound heat information of any target grid region; if the nth precursor heat information is the comprehensive heat information of the precursor of any target grid area, the electronic equipment can perform weighted summation on the heat information of the volatile organic compound and the heat information of the nitrogen oxide of any target grid area after determining the heat information of the volatile organic compound and the heat information of the nitrogen oxide of any target grid area, so as to obtain the heat information of the nth precursor.

In another embodiment, if the nth precursor heat information is nitrogen oxide heat information, the electronic device may determine a nitrogen oxide precursor emission set belonging to nitrogen oxides in any of the target grid areas based on the pollutant emission list, the nitrogen oxide precursor emission set including emission information for each precursor belonging to nitrogen oxides under each pollution source in any of the target grid areas; the emission information in the emission set of nox precursors may then be weighted separately to obtain nth precursor heat information, and so on. It should be noted that, the weights in the arbitrary weighted summation process in the embodiment of the present invention may be set empirically, or may be set according to actual requirements, which is not limited in this invention.

And S303, carrying out grid marking on a plurality of target grid areas based on N pieces of precursor heat information of each target grid area to obtain a plurality of marked grid areas, wherein one marked grid area comprises one hot spot area or at least one non-hot spot area in the plurality of target grid areas.

S304, determining a plurality of transmission contribution objects based on the plurality of marking grid areas, wherein one transmission contribution object corresponds to one marking grid area.

S305, performing pollutant tracing on each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area.

In the embodiment of the invention, the target pollutant may be ozone, and the M precursors may be divided into two types of volatile organic compounds and nitrogen oxides, that is, the M precursors may include precursors belonging to volatile organic compounds and precursors belonging to nitrogen oxides, and the electronic device may further determine a pollution cooperative emission reduction ratio of each target mesh region, where one pollution cooperative emission reduction ratio is used to indicate an emission reduction ratio between the volatile organic compounds and the nitrogen oxides in the corresponding target mesh region, that is, one pollution cooperative emission reduction ratio may be used to indicate an emission reduction ratio between the precursors belonging to volatile organic compounds and the precursors belonging to nitrogen oxides in the corresponding target mesh region, and may be used to indicate a ratio between a reduction concentration ratio of the volatile organic compounds and a reduction concentration ratio of the nitrogen oxides under the corresponding target mesh region; wherein, an emission reduction concentration ratio can be 20% (i.e. reduced by 20%) or 30%, etc., and the invention is not limited thereto. Optionally, the electronic device may invoke an OBM Model (based on the observed Model) to determine a pollution co-emission reduction ratio for each target grid region; or, the pollution cooperative emission reduction proportion of each target grid area can be randomly generated in a preset proportion range, and the like; the invention is not limited in this regard. Optionally, in the embodiment of the invention, the pollution cooperative emission reduction ratio of each target grid area can be determined preferably through an OBM model so as to improve the accuracy of the quantized pollution cooperative emission reduction ratio.

Further, the electronic device can determine the apportionment emission reduction ratio of each transmission contribution object indicated by the target traceability result of each target grid region based on the pollution cooperative emission reduction ratio and the target traceability result of each target grid region respectively; and updating the pollutant discharge list based on the allocation emission reduction ratio of each transmission contribution object indicated by the target tracing result of each target grid region to obtain an updated pollutant discharge list, wherein the updated pollutant discharge list is used for guiding the discharge of each precursor. Wherein, one apportionment emission reduction ratio can be used for indicating the emission reduction ratio of the corresponding transmission contribution object apportioned under the corresponding target grid area, namely can be used for indicating the ratio between the emission reduction concentration ratio of the volatile organic compound and the emission reduction concentration ratio of the nitrogen oxide apportioned under the corresponding target grid area; optionally, the sum of the emission reduction concentration ratios of the volatile organic compounds in the allocation emission reduction ratio of each transmission contribution object indicated by the target tracing result of any target grid region and the sum of the emission reduction concentration ratios of the nitrogen oxides in the allocation emission reduction ratio of each transmission contribution object indicated by the target tracing result of any target grid region may be equal to the pollution cooperative emission reduction ratio of any target grid region, that is, the sum of the emission reduction concentration ratios of the volatile organic compounds in the allocation emission reduction ratio of each transmission contribution object indicated by the target tracing result of any target grid region may be equal to the emission reduction concentration ratio of the volatile organic compounds in the pollution cooperative emission reduction ratio of any target grid region, and the sum of the emission reduction concentration ratios of the nitrogen oxides in the allocation emission reduction ratio of each transmission contribution object indicated by the target tracing result of any target grid region may be equal to the emission reduction concentration ratio of the nitrogen oxides in the pollution cooperative emission reduction ratio of any target grid region.

Optionally, for any transmission contribution object indicated by the target tracing result of any target grid region, the electronic device may use a division operation result between a ratio of emission reduction concentration of the volatile organic compound in the allocation emission reduction ratio of any transmission contribution object and a contribution ratio of the volatile organic compound of any transmission contribution object to the volatile organic compound of any target grid region as an emission reduction amount of the volatile organic compound required to be reduced by any transmission contribution object for any target grid region; correspondingly, the division operation result between the nitrogen oxide emission reduction concentration ratio in the allocation emission reduction ratio of any transmission contribution object and the nitrogen oxide contribution ratio of any transmission contribution object to any target grid area can be used as the nitrogen oxide emission reduction amount required by any transmission contribution object to be reduced for any target grid area; in this case, the pollutant emission list may be updated based on the volatile organic compound emission reduction and the nitrogen oxide emission reduction. The contribution ratio of any transmission contribution object to the volatile organic compound of any target grid area is as follows: the ratio between the concentration contribution value of the volatile organic compound of any transmission contribution object to any target grid area and the concentration contribution total of the volatile organic compound, wherein the concentration contribution total of the volatile organic compound is indicated by the target tracing result of any target grid area, the sum of the concentration contribution values of the volatile organic compound of each transmission contribution object to any target grid area is equal to the concentration contribution value of the volatile organic compound of one transmission contribution object to any target grid area, and the concentration contribution value of the volatile organic compound of one transmission contribution object to any target grid area is: the sum of the concentration contribution values of the corresponding transmission contribution objects to each precursor belonging to the volatile organic compound of any target grid region; correspondingly, the ratio of the contribution of the nitrogen oxide of any transmission contribution object to any target grid area is as follows: the ratio between the nitrogen oxide concentration contribution value of any transmission contribution object to any target grid area and the nitrogen oxide concentration contribution total amount is indicated by the target tracing result of any target grid area, the sum of the nitrogen oxide concentration contribution values of any target grid area is calculated by each transmission contribution object, and the nitrogen oxide concentration contribution value of one transmission contribution object to any target grid area is as follows: the sum of the concentration contributions of the respective transport contribution object to each precursor belonging to the oxynitride of any one of the target grid regions.

Optionally, when determining the emission reduction ratio of each transmission contribution object indicated by the target tracing result of each target grid region based on the pollution cooperative emission reduction ratio and the target tracing result of each target grid region, the electronic device may determine the emission reduction concentration ratio of the volatile organic compound in the emission reduction ratio of any transmission contribution object for any one of the target grid regions and any one of the transmission contribution objects indicated by the target tracing result of any one of the target grid regions based on the contribution ratio of the volatile organic compound in the pollution cooperative emission reduction ratio of any one of the transmission contribution objects to any one of the target grid regions and the emission reduction concentration ratio of the volatile organic compound in the pollution cooperative emission reduction ratio of any one of the target grid regions; optionally, the ratio of the emission reduction concentration of the volatile organic compound in the allocation emission reduction ratio of any transmission contribution object can be obtained by multiplying the ratio of the contribution of the volatile organic compound with the ratio of the emission reduction concentration of the volatile organic compound in the pollution synergistic emission reduction ratio of any target grid area. Correspondingly, the electronic equipment can determine the ratio of the emission reduction concentration of the nitrogen oxides in the allocation emission reduction ratio of any transmission contribution object based on the ratio of the contribution of the nitrogen oxides of any transmission contribution object to the emission reduction ratio of any target grid area and the ratio of the emission reduction concentration of the nitrogen oxides in the pollution cooperation emission reduction ratio of any target grid area; optionally, a multiplication operation may be performed on the nox contribution ratio and the nox emission reduction concentration ratio in the pollution cooperative emission reduction ratio of any target grid region, so as to obtain the nox emission reduction concentration ratio in the allocation emission reduction ratio of any transmission contribution object, so as to determine the allocation emission reduction ratio of any transmission contribution object indicated by the target traceability result of any target grid region.

Optionally, taking the ratio of emission reduction concentrations of volatile organic compounds as an example for explanation, if the marked grid area indicated by any transmission contributing object includes any target grid area, the multiplication result between the preset ratio and the ratio of emission reduction concentrations of volatile organic compounds in the pollution cooperative emission reduction ratio of any target grid area can be used as the ratio of emission reduction concentrations of volatile organic compounds in the allocation emission reduction ratio of any transmission contributing object, and so on; the preset ratio may be set empirically or according to actual requirements, which is not limited in the present invention.

In summary, when one transmission contribution object corresponds to one marking grid area and one pollution source in the corresponding marking grid area, the update of the pollutant emission list through the allocation emission reduction proportion of each transmission contribution object indicated by the target tracing result of each target grid area can be further refined to the corresponding pollution source under the marking grid area indicated by the corresponding transmission contribution object, so that the emission reduction guidance of industries, enterprises and the like can be further refined.

Optionally, the electronic device may further invoke an air quality model (e.g., CMAQ or CAMx, etc.), predict a target pollutant concentration in each target grid region based on the updated pollutant emission list and the plurality of transmission contribution objects, and obtain a target pollutant concentration of each target grid region under the updated pollutant emission list; based on this, the effectiveness of the emission reduction result corresponding to the updated pollutant emission list may be determined based on the difference between the target pollutant concentration of each target grid region under the updated pollutant emission list and the target pollutant concentration of each target grid region under the pollutant emission list, that is, the effect evaluation (i.e., the control effect evaluation) of the emission reduction result may be implemented to determine the effectiveness and feasibility of the emission reduction scheme corresponding to the updated pollutant emission list, as shown in fig. 4. Optionally, the updated pollutant emission list may also be referred to as a regulatory list, and the updating process of the pollutant emission list may also be referred to as a formulation process of the regulatory list.

Optionally, the electronic device may further obtain a plurality of emission reduction schemes, where any emission reduction scheme may be used to indicate a pollution cooperative emission reduction ratio of each target grid area, where pollution cooperative emission reduction ratios of each target grid area indicated by different emission reduction schemes are different; in this case, the electronic device may determine an updated pollutant emission list corresponding to each emission reduction scheme of the plurality of emission reduction schemes, predict a target pollutant concentration of each target grid region based on the updated pollutant emission list corresponding to each emission reduction scheme and the plurality of transmission contribution objects, and obtain a concentration prediction result under each emission reduction scheme, where one concentration prediction result includes the target pollutant concentration of each target grid region under the corresponding emission reduction scheme. Further, the electronic device may select a target emission reduction scheme from the plurality of emission reduction schemes based on the concentration prediction result under each emission reduction scheme; optionally, the sum of the target pollutant concentrations in each target grid region in the concentration prediction result under the target emission reduction scheme is smaller than the sum of the target pollutant concentrations in each target grid region in the concentration prediction result under any emission reduction scheme except the target emission reduction scheme in the plurality of emission reduction schemes; or, a sum of target pollutant concentrations in each of the plurality of designated grid regions in the concentration prediction result under the target emission reduction scheme is less than a sum of target pollutant concentrations in each of the designated grid regions in the concentration prediction result under any one of the plurality of emission reduction schemes other than the target emission reduction scheme, and so on; the invention is not limited in this regard. Alternatively, the emission reduction schemes may be acquired based on actual target requirements, may be acquired randomly, and so on; the invention is not limited in this regard.

It should be noted that the pollutant emission list may further include location information of each emission object of the plurality of emission objects, and one location information may be used to indicate a target grid area and a marking grid area where the corresponding emission object is located; wherein an emissions object may be an industrial enterprise or industrial park, etc.

S306, determining at least one management object corresponding to any target grid area based on a target tracing result of the any target grid area and a pollutant discharge list aiming at any target grid area in the target grid areas.

Wherein the at least one managed object may include: the transmission contribution object indicated by the target tracing result of any target grid region marks the emission object in the grid region; and/or, if a transmission contributing object is determined by a marker grid region and a pollution source in the corresponding marker grid region, the at least one management object may further comprise: contamination sources in the transmission contributing objects indicated by the target tracing results of any target grid region. In other words, if a transmission contributing object is a marker grid region, then at least one of the management objects may include: the emission object in the marked grid area where each transmission contribution object is located is indicated by a target tracing result of any target grid area; if a transmission contribution object is determined by a pollution source in a marker grid region and a corresponding marker grid region (i.e., a transmission contribution object is available to indicate a pollution source in a marker grid region and a corresponding marker grid region), then at least one of the management objects may comprise: and the emission object in the marked grid region where each transmission contribution object is located is indicated by the target tracing result of any target grid region, and/or the pollution source in the marked grid region where each transmission contribution object is located is indicated by the target tracing result of any target grid region. It can be seen that a control object can be an emissions object, a pollution source in a tagged grid area (i.e., an industry in a tagged grid area), and so forth; the invention is not limited in this regard.

Optionally, the at least one control object may further include a marked grid region in which the transmission contribution object indicated by the target tracing result of any target grid region is located. In the embodiment of the invention, at least one control object can be used for formulating pollution control measures which are thinned to a gridding area (such as a marked grid area) and industry or even enterprises aiming at any target grid area, that is, at least one control object can be used for formulating support data of corresponding pollution control measures.

After the pollutant discharge list is obtained, the embodiment of the invention can determine N pieces of precursor heat information of each target grid area based on the pollutant discharge list, wherein the N pieces of precursor heat information of one target grid area are used for judging whether the corresponding target grid area is a hot spot area, and each piece of precursor heat information in the N pieces of precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold; and based on the N precursor heat information of each target grid region, grid marking is carried out on the plurality of target grid regions to obtain a plurality of marked grid regions, wherein one marked grid region comprises one hot spot region or at least one non-hot spot region in the plurality of target grid regions. Based on this, a plurality of transmission contribution objects may be determined based on the plurality of marker grid regions, one transmission contribution object corresponding to each marker grid region; and tracing the pollutant to each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area. Therefore, the embodiment of the invention can reduce the calculated amount, thereby rapidly realizing the fine tracing of a plurality of target grid areas, correspondingly, realizing the fine tracing of a plurality of target grid areas and realizing the gridding high-resolution source analysis through limited calculation resources; and, the pollutant emission list may further include location information of each emission object of the plurality of emission objects, and then, for any one of the plurality of target grid regions, at least one management object corresponding to any one of the target grid regions may be determined based on the target tracing result of the any one of the target grid regions and the pollutant emission list, so that pollution control measures refined to the grid region, the industry, or even the enterprise may be determined by the at least one management object.

Based on the description of the related embodiments of the contaminant tracing method, the embodiments of the present invention further provide a contaminant tracing device, where the contaminant tracing device may be a computer program (including program code) running in an electronic device; as shown in fig. 5, the contaminant traceability device may include an acquisition unit 501 and a processing unit 502. The contaminant tracing device may perform the contaminant tracing method shown in fig. 1 or fig. 3, that is, the contaminant tracing device may operate the above units:

an obtaining unit 501, configured to obtain a pollutant emission list, where the pollutant emission list includes at least one pollutant source data in each of a plurality of target grid areas, and one pollutant source data includes emission information of each of M precursors of a target pollutant under a corresponding pollutant source, where M is a positive integer;

the processing unit 502 is configured to determine N pieces of precursor heat information of each target grid area based on the pollutant emission list, where the N pieces of precursor heat information of one target grid area are used to determine whether the corresponding target grid area is a hot spot area, and each piece of precursor heat information in the N pieces of precursor heat information of any hot spot area is greater than a corresponding precursor heat information threshold, where N is a positive integer less than or equal to M;

The processing unit 502 is further configured to perform grid marking on the plurality of target grid areas based on the N precursor heat information of each target grid area, to obtain a plurality of marked grid areas, where one marked grid area includes one hot spot area or at least one non-hot spot area in the plurality of target grid areas;

the processing unit 502 is further configured to determine a plurality of transmission contribution objects based on the plurality of marked grid areas, where one transmission contribution object corresponds to one marked grid area;

the processing unit 502 is further configured to perform contaminant tracing on each target grid area based on the contaminant discharge list and the plurality of transmission contribution objects, so as to obtain a target tracing result of each target grid area.

In one embodiment, when the processing unit 502 performs grid marking on the plurality of target grid areas based on the N precursor heat information of each target grid area, it may be specifically used to obtain a plurality of marked grid areas:

determining P hot spot areas and Q non-hot spot areas from the target grid areas based on the N precursor heat information of each target grid area, wherein P and Q are non-negative integers;

Marking each hot spot area in the P hot spot areas as a marking grid area;

and carrying out region fusion on the Q non-hot spot regions to obtain at least one fusion region, and respectively marking each fusion region in the at least one fusion region as a marking grid region so as to realize grid marking on the plurality of target grid regions and obtain a plurality of marking grid regions.

In another embodiment, when the processing unit 502 performs region fusion on the Q non-hot-spot regions to obtain at least one fused region, the processing unit may be specifically configured to:

according to a preset region shape and/or region range threshold, carrying out region fusion on the Q non-hot-spot regions to obtain at least one fusion region; or,

according to the adjacent relation between each non-hot spot area in the Q non-hot spot areas, carrying out area fusion on the Q non-hot spot areas to obtain at least one fusion area, so that the adjacent non-hot spot areas are fused into one fusion area; or,

determining a plurality of preset dividing regions, and carrying out region fusion on the Q non-hot-spot regions based on the preset dividing regions to obtain at least one fusion region so that one fusion region is located in one preset dividing region.

In another embodiment, the target contaminant is ozone and the N precursor heat information for one target grid region includes at least one of: the method comprises the steps of determining the heat information of the volatile organic compound, the heat information of the nitrogen oxide and the comprehensive heat information of the precursor of a corresponding target grid area, wherein the comprehensive heat information of the precursor of one target grid area is determined based on the heat information of the volatile organic compound and the heat information of the nitrogen oxide of the corresponding target grid area; the processing unit 502 may be specifically configured to, when determining the N precursor heat information of each target grid area based on the pollutant emission list:

for the nth precursor heat information of any one of the target grid areas, if the nth precursor heat information is the volatile organic compound heat information or the comprehensive precursor heat information of the any one of the target grid areas, determining a component activity list, wherein the component activity list comprises each precursor belonging to the volatile organic compound in the M precursor, and the activity coefficient of each pollution source in each target grid area;

determining a precursor emission set belonging to the volatile organic compound in the any one of the target grid areas based on the pollutant emission list, the precursor emission set including emission information for each precursor belonging to the volatile organic compound under each pollution source in the any one of the target grid areas;

Determining a precursor activity set belonging to the volatile organic compound in any target grid region based on the component activity list, wherein the precursor activity set comprises an activity coefficient of each precursor belonging to the volatile organic compound under each pollution source in any target grid region, and emission information in the precursor emission set corresponds to the activity coefficients in the precursor activity set one by one;

multiplying emission information in the precursor emission set and corresponding activity coefficients in the precursor activity set respectively to obtain active emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area;

and carrying out weighted summation on the activity emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area to obtain a weighted summation result, so as to determine the nth precursor heat information based on the weighted summation result.

In another embodiment, when performing the contaminant tracing on each target grid area based on the contaminant discharge list and the plurality of transmission contribution objects to obtain the target tracing result of each target grid area, the processing unit 502 may be specifically configured to:

Performing pollutant tracing on any target grid region in the target grid regions based on the pollutant emission list and the transmission contribution objects to obtain an initial tracing result of the any target grid region, wherein the initial tracing result comprises tracing results of the any target grid region under each transmission contribution object in the transmission contribution objects, and one tracing result of the any target grid region comprises target pollutant concentration contribution values of corresponding transmission contribution objects to the any target grid region and concentration contribution values of all precursors;

determining at least one object screening information of each transmission contribution object of the plurality of transmission contribution objects based on the initial tracing result, one object screening information being determined based on a target contaminant concentration contribution value of the respective transmission contribution object to the any one target mesh region and/or a concentration contribution value of each precursor of at least one precursor of the target contaminant;

selecting at least one traceable contribution object from the plurality of transmission contribution objects based on at least one object screening information of each transmission contribution object in the plurality of transmission contribution objects, each object screening information in the at least one object screening information of one traceable contribution object being greater than a corresponding object screening information threshold;

And taking the tracing result of any target grid area under each tracing contribution object in the at least one tracing contribution object as a target tracing result of any target grid area.

In another embodiment, the pollutant emission list further includes location information for each emission object of a plurality of emission objects; the processing unit 502 may also be configured to:

determining at least one control object corresponding to any one of the target grid areas based on a target tracing result of the any one target grid area and the pollutant emission list aiming at the any one of the target grid areas;

wherein the at least one managed object comprises: the transmission contribution object indicated by the target tracing result of any target grid region is located in the emission object in the marked grid region; and/or, if a transmission contribution object is determined by a marker grid region and a pollution source in the corresponding marker grid region, the at least one management object comprises: and transmitting pollution sources in the contributing objects indicated by the target tracing results of any target grid region.

In another embodiment, the target contaminant is ozone, the M precursor supports are divided into two categories, volatile organic compounds and nitrogen oxides, and the processing unit 502 is further operable to:

Determining a pollution cooperative emission reduction ratio of each target grid region, wherein one pollution cooperative emission reduction ratio is used for indicating the emission reduction ratio between the volatile organic compounds and the nitrogen oxides in the corresponding target grid region;

determining the apportionment emission reduction ratio of each transmission contribution object indicated by the target traceability result of each target grid region based on the pollution cooperative emission reduction ratio and the target traceability result of each target grid region respectively;

updating the pollutant discharge list based on the allocation emission reduction ratio of each transmission contribution object indicated by the target tracing result of each target grid region, so as to obtain an updated pollutant discharge list, wherein the updated pollutant discharge list is used for guiding the discharge of each precursor.

According to one embodiment of the present invention, the steps involved in the method of fig. 1 or 3 may be performed by the units of the contaminant traceability device of fig. 5. For example, step S101 shown in fig. 1 may be performed by the acquisition unit 501 shown in fig. 5, and steps S102 to S105 may each be performed by the processing unit 502 shown in fig. 5. As another example, step S301 shown in fig. 3 may be performed by the acquisition unit 501 shown in fig. 5, steps S302-S306 may each be performed by the processing unit 502 shown in fig. 5, and so on.

According to another embodiment of the present invention, each unit in the contaminant tracing device shown in fig. 5 may be separately or completely combined into one or several other units, or some (some) of the units may be further split into a plurality of units with smaller functions, which may achieve the same operation without affecting the implementation of the technical effects of the embodiments of the present invention. The above units are divided based on logic functions, and in practical applications, the functions of one unit may be implemented by a plurality of units, or the functions of a plurality of units may be implemented by one unit. In other embodiments of the present invention, any contaminant tracing device may also include other units, and in practical applications, these functions may also be implemented with assistance from other units, and may be implemented by cooperation of multiple units.

According to another embodiment of the present invention, a contaminant tracing apparatus as shown in fig. 5 may be constructed by running a computer program (including program code) capable of executing the steps involved in the respective methods as shown in fig. 1 or 3 on a general-purpose electronic device such as a computer including a processing element such as a Central Processing Unit (CPU), a random access storage medium (RAM), a read only storage medium (ROM), and the like, and a storage element, and a contaminant tracing method of an embodiment of the present invention is implemented. The computer program may be recorded on, for example, a computer storage medium, and loaded into and run in the above-described electronic device through the computer storage medium.

Based on the description of the method embodiment and the apparatus embodiment, the exemplary embodiment of the present invention further provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor. The memory stores a computer program executable by the at least one processor for causing the electronic device to perform a method according to an embodiment of the invention when executed by the at least one processor.

The exemplary embodiments of the present invention also provide a non-transitory computer readable storage medium storing a computer program, wherein the computer program, when executed by a processor of a computer, is for causing the computer to perform a method according to an embodiment of the present invention.

The exemplary embodiments of the invention also provide a computer program product comprising a computer program, wherein the computer program, when being executed by a processor of a computer, is for causing the computer to perform a method according to an embodiment of the invention.

Referring to fig. 6, a block diagram of an electronic device 600 that may be a server or a client of the present invention will now be described, which is an example of a hardware device that may be applied to aspects of the present invention. Electronic devices are intended to represent various forms of digital electronic computer devices, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the inventions described and/or claimed herein.

As shown in fig. 6, the electronic device 600 includes a computing unit 601 that can perform various appropriate actions and processes according to a computer program stored in a Read Only Memory (ROM) 602 or a computer program loaded from a storage unit 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data required for the operation of the electronic device 600 can also be stored. The computing unit 601, ROM 602, and RAM 603 are connected to each other by a bus 604. An input/output (I/O) interface 605 is also connected to bus 604.

A number of components in the electronic device 600 are connected to the I/O interface 605, including: an input unit 606, an output unit 607, a storage unit 608, and a communication unit 609. The input unit 606 may be any type of device capable of inputting information to the electronic device 600, and the input unit 606 may receive input numeric or character information and generate key signal inputs related to user settings and/or function controls of the electronic device. The output unit 607 may be any type of device capable of presenting information and may include, but is not limited to, a display, speakers, video/audio output terminals, vibrators, and/or printers. Storage unit 608 may include, but is not limited to, magnetic disks, optical disks. The communication unit 609 allows the electronic device 600 to exchange information/data with other devices through a computer network, such as the internet, and/or various telecommunications networks, and may include, but is not limited to, modems, network cards, infrared communication devices, wireless communication transceivers and/or chipsets, such as bluetooth (TM) devices, wiFi devices, wiMax devices, cellular communication devices, and/or the like.

The computing unit 601 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 601 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 601 performs the various methods and processes described above. For example, in some embodiments, the contaminant tracing method may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as storage unit 608. In some embodiments, part or all of the computer program may be loaded and/or installed onto the electronic device 600 via the ROM 602 and/or the communication unit 609. In some embodiments, the computing unit 601 may be configured to perform the contaminant tracing method by any other suitable means (e.g., by means of firmware).

Program code for carrying out methods of the present invention may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.

To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), and the internet.

The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other.

It is also to be understood that the foregoing is merely illustrative of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. A contaminant tracing method, comprising:

acquiring a pollutant emission list, wherein the pollutant emission list comprises at least one pollutant source data in each target grid region in a plurality of target grid regions, one pollutant source data comprises emission information of each precursor in M precursors of the target pollutant under a corresponding pollutant source, and M is a positive integer; wherein the target contaminant is ozone and the N precursor heat information of a target grid area comprises at least one of the following: the method comprises the steps of determining the heat information of the volatile organic compound, the heat information of the nitrogen oxide and the comprehensive heat information of the precursor of a corresponding target grid area, wherein the comprehensive heat information of the precursor of one target grid area is determined based on the heat information of the volatile organic compound and the heat information of the nitrogen oxide of the corresponding target grid area;

Determining the N precursor heat information for each target grid region based on the pollutant emission list, comprising:

for the nth precursor heat information of any one of the target grid areas, if the nth precursor heat information is the volatile organic compound heat information or the comprehensive precursor heat information of the any one of the target grid areas, determining a component activity list, wherein the component activity list comprises each precursor belonging to the volatile organic compound in the M precursors, and the activity coefficient of each pollution source in each target grid area is n epsilon [1, N ];

carrying out weighted summation on the activity emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area to obtain a weighted summation result, determining the nth precursor heat information based on the weighted summation result, wherein the N precursor heat information of one target grid area is used for judging whether the corresponding target grid area is a hot spot area or not, and each precursor heat information in the N precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold value, and N is a positive integer smaller than or equal to M;

grid marking the plurality of target grid regions based on the N precursor heat information of each target grid region to obtain a plurality of marked grid regions, including:

Marking each hot spot area in the P hot spot areas as a marking grid area;

performing region fusion on the Q non-hot spot regions to obtain at least one fusion region, and respectively marking each fusion region in the at least one fusion region as a marking grid region so as to realize grid marking on the plurality of target grid regions to obtain a plurality of marking grid regions, wherein one marking grid region comprises one hot spot region or at least one non-hot spot region in the plurality of target grid regions;

performing pollutant tracing on each target grid area based on the pollutant emission list and the plurality of transmission contribution objects to obtain a target tracing result of each target grid area; the target tracing result of any target grid region is determined based on an initial tracing result of the any target grid region, the initial tracing result comprises tracing results of the any target grid region under each transmission contribution object in the plurality of transmission contribution objects, and one tracing result of any target grid region comprises a target pollutant concentration contribution value of the corresponding transmission contribution object to the any target grid region and concentration contribution values of the precursors.

2. The method of claim 1, wherein the performing region fusion on the Q non-hotspot regions to obtain at least one fused region comprises:

3. The method according to claim 1 or 2, wherein performing contaminant tracing on the each target grid area based on the contaminant discharge list and the plurality of transmission contribution objects to obtain a target tracing result of the each target grid area comprises:

Performing pollutant tracing on any target grid region in the target grid regions based on the pollutant emission list and the transmission contribution objects to obtain an initial tracing result of the any target grid region;

4. The method of claim 1 or 2, wherein the pollutant discharge list further comprises positional information for each of a plurality of discharge objects; the method further comprises the steps of:

5. The method of claim 1 or 2, wherein the M precursor supports are divided into two categories, volatile organic compounds and nitrogen oxides, the method further comprising:

6. A contaminant traceability device, the device comprising:

an acquisition unit, configured to acquire a pollutant emission list, where the pollutant emission list includes at least one pollution source data in each of a plurality of target grid areas, and one pollution source data includes emission information of each of M precursors of a target pollutant under a corresponding pollution source, where M is a positive integer; wherein the target contaminant is ozone and the N precursor heat information of a target grid area comprises at least one of the following: the method comprises the steps of determining the heat information of the volatile organic compound, the heat information of the nitrogen oxide and the comprehensive heat information of the precursor of a corresponding target grid area, wherein the comprehensive heat information of the precursor of one target grid area is determined based on the heat information of the volatile organic compound and the heat information of the nitrogen oxide of the corresponding target grid area;

A processing unit configured to determine N precursor heat information for each target grid region based on the pollutant emission list, including: for the nth precursor heat information of any one of the target grid areas, if the nth precursor heat information is the volatile organic compound heat information or the comprehensive precursor heat information of the any one of the target grid areas, determining a component activity list, wherein the component activity list comprises each precursor belonging to the volatile organic compound in the M precursors, and the activity coefficient of each pollution source in each target grid area is n epsilon [1, N ]; determining a precursor emission set belonging to the volatile organic compound in the any one of the target grid areas based on the pollutant emission list, the precursor emission set including emission information for each precursor belonging to the volatile organic compound under each pollution source in the any one of the target grid areas; determining a precursor activity set belonging to the volatile organic compound in any target grid region based on the component activity list, wherein the precursor activity set comprises an activity coefficient of each precursor belonging to the volatile organic compound under each pollution source in any target grid region, and emission information in the precursor emission set corresponds to the activity coefficients in the precursor activity set one by one; multiplying emission information in the precursor emission set and corresponding activity coefficients in the precursor activity set respectively to obtain active emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area; carrying out weighted summation on the activity emission information of each precursor belonging to the volatile organic compound under each pollution source in any target grid area to obtain a weighted summation result, determining the nth precursor heat information based on the weighted summation result, wherein the N precursor heat information of one target grid area is used for judging whether the corresponding target grid area is a hot spot area or not, and each precursor heat information in the N precursor heat information of any hot spot area is larger than a corresponding precursor heat information threshold value, and N is a positive integer smaller than or equal to M;

The processing unit is further configured to perform grid marking on the multiple target grid areas based on the N precursor heat information of each target grid area, to obtain multiple marked grid areas, and includes: determining P hot spot areas and Q non-hot spot areas from the target grid areas based on the N precursor heat information of each target grid area, wherein P and Q are non-negative integers; marking each hot spot area in the P hot spot areas as a marking grid area; performing region fusion on the Q non-hot spot regions to obtain at least one fusion region, and respectively marking each fusion region in the at least one fusion region as a marking grid region so as to realize grid marking on the plurality of target grid regions to obtain a plurality of marking grid regions, wherein one marking grid region comprises one hot spot region or at least one non-hot spot region in the plurality of target grid regions;

the processing unit is further configured to trace the pollutant from each target grid area based on the pollutant emission list and the multiple transmission contribution objects, so as to obtain a target tracing result of each target grid area; the target tracing result of any target grid region is determined based on an initial tracing result of the any target grid region, the initial tracing result comprises tracing results of the any target grid region under each transmission contribution object in the plurality of transmission contribution objects, and one tracing result of any target grid region comprises a target pollutant concentration contribution value of the corresponding transmission contribution object to the any target grid region and concentration contribution values of the precursors.

7. An electronic device, comprising:

a processor; and

a memory in which a program is stored,

wherein the program comprises instructions which, when executed by the processor, cause the processor to perform the method according to any of claims 1-5.

8. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1-5.