CN111413477A - Estuary area water environment quality evaluation method - Google Patents
Estuary area water environment quality evaluation method Download PDFInfo
- Publication number
- CN111413477A CN111413477A CN202010138298.8A CN202010138298A CN111413477A CN 111413477 A CN111413477 A CN 111413477A CN 202010138298 A CN202010138298 A CN 202010138298A CN 111413477 A CN111413477 A CN 111413477A
- Authority
- CN
- China
- Prior art keywords
- standard
- estuary
- quality
- surface water
- seawater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000013441 quality evaluation Methods 0.000 title claims abstract description 10
- 238000011156 evaluation Methods 0.000 claims abstract description 33
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 239000002352 surface water Substances 0.000 claims description 62
- 239000013535 sea water Substances 0.000 claims description 59
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 46
- 239000000203 mixture Substances 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910019142 PO4 Inorganic materials 0.000 claims description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 16
- 239000010452 phosphate Substances 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 16
- 238000012544 monitoring process Methods 0.000 claims description 15
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 10
- 230000010354 integration Effects 0.000 claims description 10
- 229910052698 phosphorus Inorganic materials 0.000 claims description 10
- 239000011574 phosphorus Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000005949 Malathion Substances 0.000 claims description 6
- JXSJBGJIGXNWCI-UHFFFAOYSA-N diethyl 2-[(dimethoxyphosphorothioyl)thio]succinate Chemical compound CCOC(=O)CC(SP(=S)(OC)OC)C(=O)OCC JXSJBGJIGXNWCI-UHFFFAOYSA-N 0.000 claims description 6
- 229960000453 malathion Drugs 0.000 claims description 6
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 4
- 244000052769 pathogen Species 0.000 claims description 4
- 230000001717 pathogenic effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 230000000050 nutritive effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003945 anionic surfactant Substances 0.000 claims description 2
- 229910052785 arsenic Inorganic materials 0.000 claims description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 2
- 125000005605 benzo group Chemical group 0.000 claims description 2
- 229910052793 cadmium Inorganic materials 0.000 claims description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 2
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000036541 health Effects 0.000 claims description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052753 mercury Inorganic materials 0.000 claims description 2
- 238000012821 model calculation Methods 0.000 claims description 2
- LCCNCVORNKJIRZ-UHFFFAOYSA-N parathion Chemical compound CCOP(=S)(OCC)OC1=CC=C([N+]([O-])=O)C=C1 LCCNCVORNKJIRZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003208 petroleum Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 229910052711 selenium Inorganic materials 0.000 claims description 2
- 239000011669 selenium Substances 0.000 claims description 2
- 238000010561 standard procedure Methods 0.000 claims description 2
- 230000001988 toxicity Effects 0.000 claims description 2
- 231100000419 toxicity Toxicity 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 241000894006 Bacteria Species 0.000 claims 1
- 235000021317 phosphate Nutrition 0.000 description 11
- 239000003344 environmental pollutant Substances 0.000 description 5
- 238000007726 management method Methods 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 241000238557 Decapoda Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012854 evaluation process Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000000366 juvenile effect Effects 0.000 description 1
- 230000001418 larval effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1806—Biological oxygen demand [BOD] or chemical oxygen demand [COD]
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/182—Specific anions in water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1826—Organic contamination in water
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/152—Water filtration
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Data Mining & Analysis (AREA)
- Computational Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Algebra (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biomedical Technology (AREA)
- Emergency Medicine (AREA)
- Molecular Biology (AREA)
- Water Treatment By Sorption (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a method for evaluating the water environment quality in river estuary areas, which comprises the following steps: step one, dynamically judging the range of a estuary area; step two, grading the water quality evaluation grade of the estuary area; selecting evaluation indexes and calculating standard limit values; and step four, evaluating the standard, namely evaluating the standard limit values of one to four types of standard limit values of the water environment quality standard of the estuary region obtained by comparison calculation by using a single-factor pollution index evaluation method. The method can more accurately evaluate the water environment quality of the estuary region, and better provides decision support for works such as water environment management, water ecological restoration and the like of the estuary region.
Description
Technical Field
The invention belongs to the technical field of water environment quality, and particularly relates to a method for evaluating the water environment quality in river estuary areas.
Background
The river mouth is comprehensively influenced by factors such as fresh water input, tide and tidal current, is a special area different from rivers and oceans, and is not suitable for the river mouth area no matter 'surface water environment quality standard' or 'seawater quality standard'. In a water environment management system in China, a river mouth is not listed as an independent evaluation unit, most of the river mouth areas are evaluated by using a seawater quality standard, the quality of the water environment in the river mouth areas cannot be objectively reflected by the method, and development, construction, management and protection of the river mouth areas are not facilitated. Therefore, the estuary area is defined by using the salinity gradient in a dynamic demarcation way, and an evaluation system based on the surface water environment quality standard, the seawater quality standard and the salinity gradient estuary water environment quality standard and an evaluation method thereof is constructed, so that the method has very important significance for water environment management.
Disclosure of Invention
The invention provides a method for evaluating the water environment quality of a estuary region, which can evaluate the water environment quality of the estuary region more accurately and provide decision support for works such as water environment management, water ecological restoration and the like of the estuary region better.
The technical scheme adopted by the invention is as follows: the method for evaluating the water environment quality in the estuary region comprises the following steps:
step one, dynamic judgment of estuary area range
The method comprises the following steps of defining a estuary area by a salinity gradient range, setting an upper boundary and a lower boundary of the estuary area, wherein the upper boundary is a boundary between the estuary area and a river, the salinity is 0-1 per thousand as the upper boundary, the lower boundary is a boundary between the estuary area and an ocean, the salinity is 25-30 per thousand as the lower boundary, the boundary of the area is dynamically changed along with the input water volume of the river upstream of the estuary and the tidal process, and whether a target monitoring site is defined by a fixed geographical boundary when the target monitoring site is in the estuary area or not is judged, but the salinity is actually measured by the monitoring site and is within the salinity range of the estuary area;
step two, grading the water quality evaluation grade of the estuary area
According to the seawater quality standard and the surface water environmental quality standard, the categories with similar use functions and protection targets are effectively integrated, the water quality grade classification of the estuary area is established, the surface water quality standards I and II have no essential difference in use functions, the water quality of the I category generally only exists in extremely clean water bodies in a river source head area, and the water quality of the I category does not exist in the estuary area near the sea, so that the two categories can be regarded as one category, and the surface water quality near the estuary area can be simply treated and divided into four categories, namely the categories are the same as the seawater quality. The use functions and the protection targets of the class I and class II water qualities of the surface water are very close to those of the class I water quality of the seawater, and similarly, the use functions and the protection targets of the class III water quality of the surface water and the class II seawater, the class IV water quality of the surface water and the class III seawater, and the class V water quality of the surface water and the class IV seawater are not different from those of the class III water and the class II seawater, and the class V water quality of the surface water and the class IV seawater except. For example, the surface water I and II are suitable for source water, a national natural protection area, a primary protection area of a centralized drinking water surface water source place, a rare aquatic organism habitat, a fish and shrimp spawning site, a bait station for larval and juvenile fish and the like, the seawater is suitable for a marine fishery water area, a marine natural protection area and a rare endangered marine organism protection area, and except for the functions of the source water, the primary protection area of the centralized drinking water surface water source place and the drinking function which do not exist in the sea, the rest of the seawater is a natural protection area and a fishery protection area, so the source water, the centralized drinking water surface water source place and the primary protection area can be effectively connected. The result of the integration is therefore: the type I and the type II of the surface water are regarded as the same type, and the joint integration result of the surface water and the sea water is determined as the class I grade of the estuary area; the integration result of the connection of the surface water III and the seawater II is determined as the river mouth area II grade; the integration result of the IV-type surface water and the three-type seawater is determined as three-type river mouth area grades; the integration result of the connection of the surface water type V and the seawater type is determined as four types of grades of the estuary area; table 1 shows a model of water environment quality evaluation criteria in estuary region:
TABLE 1
Third, evaluation index selection and standard limit calculation mode
The first type is 'floater', 'color, odor, taste' and 'suspended substance', and the indexes directly use the limit value of 'seawater quality standard' as the limit value of the water quality standard of estuary area;
the second type is water quality physicochemical factor 'five parameters', and the water temperature index uses the limit value of 'seawater quality standard' as the standard limit value of estuary area. The pH index is CmixCalculating a standard limit value by the mode; dissolved oxygen index used CmixCalculating a standard limit value by the mode;
the third kind is nutritive salt index including nitrogen and phosphorus index, and the conversion coefficient of inorganic nitrogen/total nitrogen and active phosphate/total phosphorus is introduced, and after the total nitrogen index is converted into inorganic nitrogen and the total phosphorus index is converted into active phosphate, the inorganic nitrogen and the active phosphate are combinedAnd CmixModel calculation of Standard limits for inorganic Nitrogen and active phosphate in estuary region, hereinafter referred to as Cmix(K) A mode;
the fourth type is a project with consistent evaluation indexes in seawater quality standards and surface water environment quality standards, and comprises 16 items of chemical oxygen demand, biochemical oxygen demand, mercury, cadmium, lead, hexavalent chromium, arsenic, copper, zinc, selenium, cyanide, sulfide, volatile powder, petroleum, anionic surfactant and faecal coliform, wherein the chemical oxygen demand in the seawater quality standards is greatly different from a chemical oxygen demand analysis method in the surface water environment quality standards and is similar to a permanganate index analysis method in the surface water environment quality standards, so that the chemical oxygen demand in the seawater quality standards and the permanganate index in the surface water environment quality standards are divided into a same group of indexes; in order to effectively distinguish the chemical oxygen demand of surface water, the index in the estuary area standard follows the law in the surface water standard, namely the permanganate index, the indexes have larger difference between the standard limit values of the surface water and the standard limit value of the seawater and have stronger mixing action in the estuary process, so C is usedmixCalculating the standard limit value of the estuary area by the mode;
the fifth type is an index contained in only one standard in seawater quality standards and surface water environment quality standards, and comprises 9 items of snivel, malathion, parathion, benzo, pathogen, coliform group, radionuclide and fluoride and chemical oxygen demand which are only evaluated in the seawater quality standards, wherein the pathogen and the coliform group in the seawater quality standards are health indexes threatening crowd, the other 5 items are toxicity indexes, the same standard is executed on the river mouth and the ocean, and the seawater quality standards are directly used as standard limit values of the river mouth; two fluoride and chemical oxygen demand in the surface water environment quality standard are selected and directly used as river mouth area standard limit values;
table Z various index standard value selection mode
After the integration and connection, the water quality standard of the estuary region comprises 36 items, wherein 11 items of the seawater standard are directly used, and 2 items of the surface water standard are directly used, so that the 13 items directly have clear standard limit values, and the specific standard limit values are shown in table 3.
TABLE 3 Water quality Standard Limit value of estuary area directly to Standard index
In addition to the above-mentioned 13 indexes capable of directly matching target, 23 indexes are passed through C according to salinitymixMode or Cmix(K) And calculating the estuary area standard limit. Table 4 calculates and lists standard limits for each salinity condition (one interval per 2 salinities) in estuary area, using active phosphate and pH as examples. The standard limit values of the indexes are between the surface water standard and the seawater standard, the standard limit value near the upper boundary (low salinity area) of the estuary is close to the corresponding factor limit value in the surface water environment quality standard, and the standard limit value near the lower boundary (high salinity area) of the estuary is close to the corresponding factor limit value in the seawater quality standard. In practical operation, the estuary area standard limit value at the specific salinity can be calculated through actually measuring salinity at the station, and the standard value corresponding to each salinity in the estuary area can also be calculated as shown in table 4.
TABLE 4 Water quality Standard limits for different salinity in estuary region
Said C ismixThe pattern calculation process is as follows:
Pr＝1-Ps(2)
in the formula, PsIn the proportion of seawater, PrIs the surface water ratio, SiMeasuring salinity S for the sitebLower boundary salinity;
Cs＝CiPs(3)
Cr＝CiPr(4)
in the formula, CsPart of the source of the seawater as a contaminant, CrIs part of the surface water source of the pollutant, CiActually measuring the concentration of the site pollutants;
in the formula, PIsThe result is the partial evaluation of the PI value, PI, for the sea water sourcerThe PI value is the evaluation result of the surface water source part, the PI value is the ratio of the pollutant concentration to the standard value of the pollutant concentration, CssIs the limit value of the corresponding water quality index concentration of the seawater quality standard, CsrThe water quality index concentration limit value is corresponding to the surface water environment quality standard, and K is a conversion coefficient;
according to the conceptual model, the water quality index evaluation result of the estuary region is the sum of the evaluation results of the seawater source part and the surface water source part:
PImix＝PIs+PIr(7)
in the formula PImixThe water quality index evaluation result PI value, PI of estuary areasThe value of the water quality index of the seawater source part is the evaluation result PI value, PIrThe PI value is the water quality index evaluation result of the surface water source part;
bringing formulae (1) to (6) into formula (7) gives:
and (3) after simplification:
the measured concentration C of the site pollutant is obtained by the formula (9)iRatio to a calculation formula, i.e. evaluation criterion limit of estuary region (C)mix(K))：
In the formula, Cmix(K) The evaluation standard limit value of inorganic nitrogen or active phosphate in estuary area, SiMeasuring salinity S for the sitebIs boundary salinity, CssIs the corresponding water quality class concentration limit value of inorganic nitrogen or active phosphate in seawater standard, CsrThe concentration limit value of the water quality category corresponding to total nitrogen or total phosphorus in the surface water standard is defined, K is the conversion coefficient of inorganic nitrogen/total nitrogen or active phosphate/total phosphorus of the monitoring site, and the conversion coefficient K calculates the K value of the point position through the measured value of the evaluated site;
when the evaluation indexes in seawater quality standard and surface water environment quality standard are consistent, the K value is 1, and C is obtainedmix：
And step four, evaluating the standard, namely evaluating the standard limit values of one to four types of standard limit values of the water environment quality standard of the estuary region obtained by comparison calculation by using a single-factor pollution index evaluation method.
Preferably, each monitoring index refers to a sampling, analyzing and quality control method specified in seawater quality standard and a corresponding current monitoring standard method, wherein for the parameter influenced by salinity, a corresponding analyzing method in surface water environment quality standard is used when the salinity is less than 3.
The invention has the beneficial effects that: the estuary water environment quality standard evaluation system effectively links the 'surface water environment quality standard' and the 'seawater quality standard' by taking the salinity gradient as a link, thereby not only keeping the integral consistency and effective link, but also more accurately and truly reflecting the actual water quality condition of estuary areas. The evaluation system has strong applicability and operability, and can better serve the water environment management of the near-shore estuary region.
Compared with the existing evaluation directly adopting the seawater quality standard, the invention has the following advantages: considering that river input is in a natural state and is not in a severe environment, the comprehensive evaluation of the surface water environment quality standard can more accurately reflect the environment quality.
Drawings
FIG. 1 shows evaluation criteria C for water environment quality in estuary regionmixModel diagram of concept of pattern.
FIG. 2 is a flow chart of water environment quality evaluation in estuary region
Detailed Description
The invention is described in detail below with reference to the figures and examples.
The evaluation process is described by taking the monitoring results of the sites Q1 and Q2 in the water area near the estuary as an example, and the monitoring results of the two sites are shown in table 5.
Table 5 example site monitoring results
Step one, judging whether the target station is in the estuary area or not. And the salinity of the upper boundary of the estuary is set to be 0.1 per mill, the salinity of the lower boundary is set to be 25 per mill, namely the area with the salinity of 0.1 per mill-25 per mill near the estuary is the estuary area, Q1 is in the estuary area, and Q2 is outside the estuary area and is evaluated without using the standard of the estuary area.
Step two, referring to a water environment quality evaluation standard type model of a estuary region in the table 1
And step three, selecting a mode for calculating the water quality standard limit value of the estuary area according to the monitoring index. Evaluation of active phosphates in nutritive salt indexes, using Cmix(K) A mode; evaluation of pH with CmixA mode; malathion was evaluated using a direct comparison to the water quality standards limits in the estuary region of table 3. Calculating evaluation grade grading standard limit value of estuary region, nutrient salt index (active phosphate), and using Cmix(K) Mode, pH Using CmixAnd calculating to obtain one to four types of standards under the salinity condition measured by the site, or calculating the results of various types of standards lists under different salinity conditions in advance to be shown in table 4, wherein the malathion index directly uses the standard limit values of the malathion standard in the estuary water quality standard (table 3) capable of directly matching the standard index, wherein the standard limit value of one type (0.0005 mg/L), the standard limit value of the second type (0.001 mg/L), the standard limit value of the third type (0.001 mg/L) and the standard limit value of the fourth type (0.001 mg/L).
The measured salinity of a Q1 site is 14 per mill, a standard limit corresponding to 14 per mill of salinity in the table 4 is selected, the active phosphate concentration is 0.044 mg/L, a first-class standard limit corresponding to 14 per mill of salinity in the table 4 is 0.023 mg/L and a second-class standard limit corresponding to 0.045 mg/L, the evaluation result is a second-class water quality, the pH value is 7.4, the first-class standard limit corresponding to 14 per mill of salinity in the table 4 is 6.9-8.7, the first-class water quality is obtained, the malathion concentration is 0.0004 mg/L, the first-class standard limit according to the standard in the table 3 is 0.0005 mg/L, the first-class water quality is obtained, and the evaluation results of all three items are integrated to obtain the second-class water quality.
Although the embodiments of the present invention have been described in detail, the description is only one specific estuary embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent. Table 3 only lists the values of the 2% salinity grid and does not represent all the calculations.
Claims (2)
1. A estuary region water environment quality evaluation method is characterized by comprising the following steps:
step one, dynamic judgment of estuary area range
The method comprises the following steps of defining a estuary area by a salinity gradient range, setting an upper boundary and a lower boundary of the estuary area, wherein the upper boundary is a boundary between the estuary area and a river, the salinity is 0-1 per thousand as the upper boundary, the lower boundary is a boundary between the estuary area and an ocean, the salinity is 25-30 per thousand as the lower boundary, the boundary of the area is dynamically changed along with the input water volume of the river upstream of the estuary and the tidal process, and whether a target monitoring site is defined by a fixed geographical boundary when the target monitoring site is in the estuary area or not is judged, but the salinity is actually measured by the monitoring site and is within the salinity range of the estuary area;
step two, grading the water quality evaluation grade of the estuary area
According to the seawater quality standard and the surface water environment quality standard, effectively integrating the categories with similar use functions and protection targets between the seawater quality standard and the surface water environment quality standard, establishing water quality grade classification of the estuary area, regarding the surface water I and II as the same category, and determining the joint integration result of the surface water I and the surface water II as the first class grade of the estuary area; the integration result of the connection of the surface water III and the seawater II is determined as the river mouth area II grade; the integration result of the IV-type surface water and the three-type seawater is determined as three-type river mouth area grades; the integration result of the connection of the surface water type V and the seawater type is determined as four types of grades of the estuary area;
third, evaluation index selection and standard limit calculation mode
The first type is 'floater', 'color, odor, taste' and 'suspended substance', and the indexes directly use the limit value of 'seawater quality standard' as the limit value of the water quality standard of estuary area;
the second type is water quality physicochemical factor 'five parameters', the water temperature index uses 'seawater quality Standard' limit value as estuary area standard limit value, the pH index uses CmixCalculating a standard limit value by the mode; dissolved oxygen index used CmixCalculating a standard limit value by the mode;
the third kind is nutritive salt index including nitrogen and phosphorus index, and the total nitrogen index is converted into inorganic nitrogen and total phosphorus index is converted into active phosphate by introducing inorganic nitrogen/total nitrogen and active phosphate/total phosphorus conversion coefficient K and combining with CmixModel calculation of Standard limits for inorganic Nitrogen and active phosphate in estuary region, hereinafter referred to as Cmix(K) A mode;
the fourth type is ' seawater quality standard ' and ' surface water environment qualityItems with consistent evaluation indexes in the quantitative standards comprise 16 items of chemical oxygen demand, biochemical oxygen demand, mercury, cadmium, lead, hexavalent chromium, arsenic, copper, zinc, selenium, cyanide, sulfide, volatile powder, petroleum, anionic surfactant and faecal coliform group bacteria, wherein the chemical oxygen demand in the seawater quality standard is greatly different from a chemical oxygen demand analysis method in the surface water environment quality standard and is similar to a permanganate index analysis method in the surface water environment quality standard, so that the chemical oxygen demand in the seawater quality standard and the permanganate index in the surface water environment quality standard are divided into the same group of indexes; in order to effectively distinguish the chemical oxygen demand of surface water, the index in the estuary area standard follows the law in the surface water standard, namely the permanganate index, the indexes have larger difference between the standard limit values of the surface water and the standard limit value of the seawater, and C is usedmixCalculating the standard limit value of the estuary area by the mode;
the fifth type is an index contained in only one standard in seawater quality standards and surface water environment quality standards, and comprises 9 items of snivel, malathion, parathion, benzo, pathogen, coliform group, radionuclide and fluoride and chemical oxygen demand which are only evaluated in the seawater quality standards, wherein the pathogen and the coliform group in the seawater quality standards are health indexes threatening crowd, the other 5 items are toxicity indexes, the same standard is executed on the river mouth and the ocean, and the seawater quality standards are directly used as standard limit values of the river mouth; two fluoride and chemical oxygen demand in the surface water environment quality standard are selected and directly used as river mouth area standard limit values;
said C ismix(K) The mode calculation formula is:
in the formula, Cmix(K) The evaluation standard limit value of inorganic nitrogen or active phosphate in estuary area, SiMeasuring salinity S for the sitebIs boundary salinity, CssIs the corresponding water quality class concentration limit value of inorganic nitrogen or active phosphate in seawater quality Standard, CsrThe concentration limit value of the corresponding water quality category of total nitrogen or total phosphorus in surface water environment quality standard is set, K is the conversion coefficient of inorganic nitrogen/total nitrogen or active phosphate/total phosphorus of the monitored site, and the conversion coefficient K adopts the measured value of the evaluated site to calculate the K value of the point; when the evaluation indexes in the seawater quality standard and the surface water environment quality standard are consistent, the K value is 1 to obtain Cmix：
And step four, evaluating the standard, namely evaluating the standard limit values of one to four types of standard limit values of the water environment quality standard of the estuary region obtained by comparison calculation by using a single-factor pollution index evaluation method.
2. The estuary region water environment quality evaluation method according to claim 1, wherein: the monitoring indexes refer to sampling, analyzing and quality control methods specified in seawater quality standard and corresponding existing monitoring standard methods, wherein for the parameters influenced by salinity, the corresponding analyzing method in surface water environment quality standard is used when the salinity is less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138298.8A CN111413477B (en) | 2020-03-03 | 2020-03-03 | River mouth area water environment quality evaluation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010138298.8A CN111413477B (en) | 2020-03-03 | 2020-03-03 | River mouth area water environment quality evaluation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111413477A true CN111413477A (en) | 2020-07-14 |
| CN111413477B CN111413477B (en) | 2024-03-19 |
Family
ID=71490989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010138298.8A Active CN111413477B (en) | 2020-03-03 | 2020-03-03 | River mouth area water environment quality evaluation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111413477B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112613778A (en) * | 2020-12-28 | 2021-04-06 | 深圳中绿环境集团有限公司 | Mangrove plantation engineering restoration effect assessment method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020031402A1 (en) * | 2000-07-21 | 2002-03-14 | Bruce J. French | Water quality management system and method |
| CN102496070A (en) * | 2011-12-07 | 2012-06-13 | 中国海洋大学 | Method for building ecology risk assessment model for estuary |
| CN105115538A (en) * | 2015-04-01 | 2015-12-02 | 北京师范大学 | Estimation method for endogenous pollution of wetland lake in estuarine delta region |
| CN106021887A (en) * | 2016-05-13 | 2016-10-12 | 浙江省舟山海洋生态环境监测站 | Health evaluation method for river mouth and bay ecological system |
| CN110442997A (en) * | 2019-08-14 | 2019-11-12 | 中交（天津）生态环保设计研究院有限公司 | It is a kind of for instructing the river mouth waters range demarcation method of river mouth habitat betterment works |
-
2020
- 2020-03-03 CN CN202010138298.8A patent/CN111413477B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020031402A1 (en) * | 2000-07-21 | 2002-03-14 | Bruce J. French | Water quality management system and method |
| CN102496070A (en) * | 2011-12-07 | 2012-06-13 | 中国海洋大学 | Method for building ecology risk assessment model for estuary |
| CN105115538A (en) * | 2015-04-01 | 2015-12-02 | 北京师范大学 | Estimation method for endogenous pollution of wetland lake in estuarine delta region |
| CN106021887A (en) * | 2016-05-13 | 2016-10-12 | 浙江省舟山海洋生态环境监测站 | Health evaluation method for river mouth and bay ecological system |
| CN110442997A (en) * | 2019-08-14 | 2019-11-12 | 中交（天津）生态环保设计研究院有限公司 | It is a kind of for instructing the river mouth waters range demarcation method of river mouth habitat betterment works |
Non-Patent Citations (2)
| Title |
|---|
| 郑丙辉 等: "探析入海河口水质评价标准的合理性", 《环境保护》, pages 43 - 47 * |
| 黄聚聪: "入海河口区域范围确定方法初探", 《海峡科学》, no. 2014, pages 15 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112613778A (en) * | 2020-12-28 | 2021-04-06 | 深圳中绿环境集团有限公司 | Mangrove plantation engineering restoration effect assessment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111413477B (en) | 2024-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Acquavita et al. | Annual characterization of the nutrients and trophic state in a Mediterranean coastal lagoon: The Marano and Grado Lagoon (northern Adriatic Sea) | |
| Van Oevelen et al. | Carbon flows through a benthic food web: Integrating biomass, isotope and tracer data | |
| Sigua et al. | Water-quality monitoring and biological integrity assessment in the Indian River Lagoon, Florida: Status, trends, and loadings (1988–1994) | |
| Leščešen et al. | Statistical Analysis of Water Quality Parameters of the Drina River (West Serbia), 2004-11. | |
| Azevedo et al. | Pelagic metabolism of the Douro estuary (Portugal)–Factors controlling primary production | |
| Stevenson et al. | An overview of the state and trends in water quality of Canterbury's rivers and streams | |
| Neill | Microbiological indices for total coliform and E. coli bacteria in estuarine waters | |
| CN111413477A (en) | Estuary area water environment quality evaluation method | |
| Lundberg | Eutrophication in the Baltic Sea | |
| TAŞ et al. | Evaluation of water qualities of discharging area of some running waters into Black Sea in the Central Black Sea Region of Turkey. | |
| Flemer et al. | The relative influence of hypoxia, anoxia, andassociated environmental factors as determinants ofmacrobenthic community structure in aNorthern Gulf of Mexico estuary | |
| Cahyonugroho et al. | Study of phytoplankton biology index and water quality parameters of kali Surabaya River | |
| Wen et al. | Mussel isotope signature as indicator of nutrient pollution in a freshwater eutrophic lake: species, spatial, and seasonal variability | |
| Hamdan et al. | Seasonal and interannual dynamics of free-living bacterioplankton and microbially labile organic carbon along the salinity gradient of the Potomac River | |
| Yang et al. | The relationships of urbanization to surface water quality in four lakes of Hanyang, China | |
| Wang et al. | Heavy metal pollution of surface sediments in the northern waters of the abandoned Yellow River Delta in Jiangsu Province of China and ecological risk assessment. | |
| Mahmoud et al. | Physico-chemical characteristics of different water types in El-Mex bay, Alexandria, Egypt | |
| Mallick et al. | Impact of human activities on water quality and vice versa on Ranikhola River in Sikkim, India | |
| Fiona et al. | Macrozoobentos community structure in Situ ciburuy padalarang west bandung regency, west java | |
| Anita | The Quality and Distribution of Water at Krueng Geukueh Waters in North Aceh Regency-Indonesia | |
| Liu et al. | ECOLOGICAL HEALTH ASSESSMENT OF LIAO RIVER MAINSTREAM BASED ON FISH BIOTIC INTEGRITY INDEX. | |
| Kvalø et al. | Recipient survey in relation to exception from secondary treatment of sewage emissions in Lindås municipality, 2013 | |
| Oben et al. | Influence of nutrient concentrations on the seasonal abundance and distribution of Cyanophyceae in the coastal region of Mount Cameroon | |
| Bhagat et al. | Correlated Studies of Vancouver Lake-water Quality Prediction Study | |
| Wahyuningsih | Assessment of water quality status in Bondet Estuary, Cirebon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |