CN113295586A - Data calibration method of atmospheric pollution monitoring system - Google Patents
Data calibration method of atmospheric pollution monitoring system Download PDFInfo
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- CN113295586A CN113295586A CN202110526923.0A CN202110526923A CN113295586A CN 113295586 A CN113295586 A CN 113295586A CN 202110526923 A CN202110526923 A CN 202110526923A CN 113295586 A CN113295586 A CN 113295586A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005070 sampling Methods 0.000 claims abstract description 67
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 55
- 231100000719 pollutant Toxicity 0.000 claims abstract description 55
- 239000012298 atmosphere Substances 0.000 claims abstract description 8
- 238000000149 argon plasma sintering Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 238000003915 air pollution Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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Abstract
The invention relates to the technical field of environmental monitoring, and discloses a data calibration method of an atmospheric pollution monitoring system, which comprises the following steps: the first step is as follows: a worker collects air at the location of the monitoring system by using a sampler and places the collected air in a sampling bottle; the second step is that: detecting the gas obtained by sampling by a worker through a monitor, and recording the numerical value monitored by the monitor; this data calibration method of atmospheric pollution monitoring system, the air through sampling monitoring system location can reduce the calibration deviation, the monitoring system's of being convenient for use, through on the instrument detection sampling bottle wall before the sampling and in the sample thief on the pipeline pipe wall that gas flows through before getting into the sampling bottle in the sample thief the setting of the concentration of the pollutant that is the same with the pollutant composition in the atmosphere, the staff can get rid of the influence of sampling bottle wall and sampling passageway to the absorption of pollutant to monitoring data at the in-process of data calibration, reduce the data calibration deviation.
Description
Technical Field
The invention relates to the technical field of environmental monitoring, in particular to a data calibration method of an atmospheric pollution monitoring system.
Background
Today with the continuous development and progress of science and technology, people living on the land pay more attention to the environmental pollution problem nearby and also pay more attention to natural environments, such as soil, water and atmosphere, which are closely related to our lives, wherein the air pollution problem, such as PM2.5 explosion surface, is one of the most concerned hot problems in recent years, but unfortunately, due to the high cost and low efficiency of air pollution monitoring, the form of air pollution abatement is still very severe,
the data calibration of most atmospheric pollution detection systems used today is separated from the use, and there are significant differences in the substrates of the standard gas used for calibration and the actual ambient gas, resulting in large calibration deviations.
Disclosure of Invention
Aiming at the defects of the data calibration method of the existing atmospheric pollution monitoring system, the invention provides the data calibration method of the atmospheric pollution monitoring system, which has the advantages that the gas used for calibration is the gas collected in the actual environment, the calibration deviation is reduced, the use of the monitoring system is convenient, and the problems provided in the background art are solved.
The invention provides the following technical scheme: a data calibration method of an atmospheric pollution monitoring system comprises the following steps:
the first step is as follows: a worker collects air at the location of the monitoring system by using a sampler and places the collected air in a sampling bottle;
the second step is that: detecting the gas obtained by sampling by a worker through a monitor, and recording the numerical value monitored by the monitor;
the third step: the working personnel detect the concentration of pollutants in the pipe wall of the pipeline and the inner wall of the sampling bottle through which the gas in the sampler flows, and record the numerical value of the concentration of the pollutants;
the fourth step: integrating the values obtained in the second step and the third step to obtain a pollutant concentration value of the site where the monitoring system is located;
the fifth step: and repeating the steps for multiple times, and establishing a pollutant concentration calibration model by the staff according to the obtained pollutant concentration value.
Preferably, in the first step, the worker needs to use an instrument to detect the concentration of pollutants with the same composition as the pollutants in the atmosphere on the bottle wall of the sampling bottle and on the pipe wall of the pipeline through which the gas in the sampling bottle flows before entering the sampling bottle, the worker needs to use a plurality of samplers to simultaneously collect the air at different positions and sample a plurality of parts of air at different positions, the worker can eliminate the influence of the absorption of the bottle wall of the sampling bottle and the sampling passage on the pollutants on monitoring data in the data calibration process by using the instrument to detect the concentration of the pollutants with the same composition as the pollutants in the atmosphere on the bottle wall of the sampling bottle and on the pipe wall of the pipeline through which the gas in the sampling bottle flows before entering the sampling bottle before sampling, the data calibration deviation is reduced, the use of a monitoring system is convenient, and the influence of the outside on the gas monitoring result can be reduced by collecting the plurality of parts of air at different positions of the sampling place, the accuracy of monitoring the concentration of the gas pollutants is improved.
Preferably, the gas volume that the monitor was monitored every time when monitoring same group of sampling gas in the second step is the same, and gas is gathered the back and is monitored pollutant concentration wherein with the monitor immediately, the monitor adopts the pollutant concentration in the light scattering method monitoring gas, can reduce the uncertainty source through the same setting of volume to same group monitoring sampling gas, improve the accuracy of monitoring result, through the setting of monitoring the gas of gathering with the monitor immediately, gas is short by the time interval of gathering the monitoring, can ignore the influence of temperature and pressure to pollutant concentration, uncertain source has been reduced, can improve the accuracy of monitoring result.
Preferably, in the third step, the worker records the increase value of the concentration of the pollutant flowing through the pipe wall of the pipeline before sampling the bottle wall of the sampling bottle and the gas, and otherwise records the decrease value of the concentration of the pollutant flowing through the pipe wall of the pipeline before sampling the bottle wall of the sampling bottle and the gas as a negative number, so that the worker can conveniently record the concentration value of the pollutant.
Preferably, in the fifth step, the worker needs to refer to data monitored by a national standard monitoring station where the gas sampling is located before establishing the model, so that abnormal data can be eliminated, the deviation is reduced, and the accuracy of the result is improved.
Preferably, in the fourth step, the worker adds the values obtained in the second step and the third step to obtain the concentration value of the pollutant in the air.
Compared with the data calibration method of the existing atmospheric pollution monitoring system, the method has the following beneficial effects:
1. this data calibration method of atmospheric pollution monitoring system, the air through sampling monitoring system location can reduce the calibration deviation, the monitoring system's of being convenient for use, through on the instrument detection sampling bottle wall before the sampling and in the sample thief on the pipeline pipe wall that gas flows through before getting into the sampling bottle in the sample thief the setting of the concentration of the pollutant that is the same with the pollutant composition in the atmosphere, the staff can get rid of the influence of sampling bottle wall and sampling passageway to the absorption of pollutant to monitoring data at the in-process of data calibration, reduce the data calibration deviation.
2. According to the data calibration method of the atmospheric pollution monitoring system, the uncertainty source can be reduced by setting the same volume of the same group of monitoring sampling gas, the accuracy of the monitoring result is improved, the collected gas is immediately monitored by the monitor, the time interval of the gas monitored by the monitor is short, the influence of temperature and pressure on the concentration of pollutants can be ignored, the uncertain source is reduced, and the accuracy of the monitoring result can be improved.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A data calibration method of an atmospheric pollution monitoring system comprises the following steps:
the first step is as follows: a worker collects air at the location of the monitoring system by using a sampler and places the collected air in a sampling bottle;
the second step is that: detecting the gas obtained by sampling by a worker through a monitor, and recording the numerical value monitored by the monitor;
the third step: the working personnel detect the concentration of pollutants in the pipe wall of the pipeline and the inner wall of the sampling bottle through which the gas in the sampler flows, and record the numerical value of the concentration of the pollutants;
the fourth step: integrating the values obtained in the second step and the third step to obtain a pollutant concentration value of the site where the monitoring system is located;
the fifth step: the steps are repeated for multiple times, the obtained data can be more accurate, and the staff establishes a pollutant concentration calibration model according to the obtained pollutant concentration numerical value.
Wherein, in the first step, the worker needs to use the instrument to detect the concentration of the pollutant with the same component as the pollutant in the atmosphere on the wall of the sampling bottle and the pipe wall of the pipeline through which the gas in the sampling bottle flows before entering the sampling bottle, the worker needs to use a plurality of samplers to simultaneously collect the air at different positions and sample a plurality of air samples at different positions, the worker can eliminate the influence of the absorption of the wall of the sampling bottle and the sampling passage on the pollutant on the monitoring data in the data calibration process by using the instrument to detect the concentration of the pollutant with the same component as the pollutant in the atmosphere on the wall of the pipeline through which the gas in the sampling bottle and the pipe wall of the pipeline through which the gas in the sampling bottle flows before entering the sampling bottle before sampling, the data calibration deviation is reduced, the use of the monitoring system is convenient, and the influence of the outside on the gas monitoring result can be reduced by the arrangement of collecting the plurality of air at different positions of the sampling place, the accuracy of monitoring the concentration of the gas pollutants is improved.
Wherein, the gas volume that the monitor was monitored at every turn when monitoring same group of sampling gas in the second step is the same, and gas is gathered the back and is monitored pollutant concentration wherein with the monitor immediately, the monitor adopts the pollutant concentration in the light scattering method monitoring gas, can reduce the uncertainty source through the same setting of volume to same group monitoring sampling gas, improve the accuracy of monitoring result, through the setting of monitoring the gas of using the monitor monitoring immediately to gather, gas is short by the time interval of gathering the monitoring, can ignore the influence of temperature and pressure to pollutant concentration, uncertain source has been reduced, can improve the accuracy of monitoring result.
In the third step, the worker records the increased value of the concentration of the pollutants flowing through the pipe wall of the pipeline before sampling the bottle wall of the sampling bottle and the gas as positive numbers, and otherwise records the decreased value of the concentration of the pollutants flowing through the pipe wall of the pipeline before sampling the bottle wall of the sampling bottle and the gas as negative numbers, so that the worker can conveniently record the concentration value of the pollutants.
In the fifth step, the worker needs to refer to data monitored by a national standard monitoring station where the gas sampling is located before establishing the model, so that abnormal data can be eliminated, the deviation is reduced, and the accuracy of the result is improved.
And in the fourth step, the workers add the numerical values obtained in the second step and the third step to obtain the concentration value of the pollutants in the air.
Claims (6)
1. A data calibration method of an atmospheric pollution monitoring system is characterized in that: the method comprises the following steps:
the first step is as follows: a worker collects air at the location of the monitoring system by using a sampler and places the collected air in a sampling bottle;
the second step is that: detecting the gas obtained by sampling by a worker through a monitor, and recording the numerical value monitored by the monitor;
the third step: the working personnel detect the concentration of pollutants in the pipe wall of the pipeline and the inner wall of the sampling bottle through which the gas in the sampler flows, and record the numerical value of the concentration of the pollutants;
the fourth step: integrating the values obtained in the second step and the third step to obtain a pollutant concentration value of the site where the monitoring system is located;
the fifth step: and repeating the steps for multiple times, and establishing a pollutant concentration calibration model by the staff according to the obtained pollutant concentration value.
2. The data calibration method of the atmospheric pollution monitoring system according to claim 1, characterized in that: in the first step, the concentration of pollutants which are the same as the components of the pollutants in the atmosphere on the wall of a sampling bottle and the pipe wall of a pipeline through which gas flows before entering the sampling bottle in the sampler needs to be detected by an instrument by workers before sampling, the air at different positions needs to be simultaneously collected by the workers during sampling, and the air at the different positions is sampled for multiple times.
3. The data calibration method of the atmospheric pollution monitoring system according to claim 1, characterized in that: in the second step, the volume of gas monitored by the monitor each time when the same group of sampled gas is monitored is the same, and the pollutant concentration in the gas is monitored by the monitor immediately after the gas is collected, and the pollutant concentration in the gas is monitored by the monitor by adopting a light scattering method.
4. The data calibration method of the atmospheric pollution monitoring system according to claim 1, characterized in that: in the third step, the worker records the increase value of the concentration of the pollutants flowing through the pipe wall of the pipeline before sampling the bottle wall of the sampling bottle and the gas as positive numbers, and otherwise records the decrease value of the concentration of the pollutants flowing through the pipe wall of the pipeline before sampling the bottle wall of the sampling bottle and the gas as negative numbers.
5. The data calibration method of the atmospheric pollution monitoring system according to claim 1, characterized in that: and in the fifth step, before establishing the model, the worker needs to refer to data monitored by a national standard monitoring station where the gas sampling is located.
6. The data calibration method of the atmospheric pollution monitoring system according to claim 1, characterized in that: and in the fourth step, the worker adds the values obtained in the second step and the third step to obtain the concentration value of the pollutants in the air.
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| CN202110526923.0A CN113295586A (en) | 2021-05-14 | 2021-05-14 | Data calibration method of atmospheric pollution monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117313428A (en) * | 2023-11-28 | 2023-12-29 | 西安中核核仪器股份有限公司 | Pollutant concentration online monitoring and correcting method for thermal power plant |
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2021
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