CN105891433A - Method for identifying underground water type drinking water source particular pollutants - Google Patents
Method for identifying underground water type drinking water source particular pollutants Download PDFInfo
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Abstract
The invention provides a method for identifying underground water type drinking water source particular pollutants. The method comprises the steps of selecting an evaluation index according to the water quality standard of drinking water and the actual condition of a water source, determining pollutants in water according to the evaluation index to obtain a pollutant determination result, calculating potential damage index value, average detectable concentration value and detection frequency value according to the pollutant determination result, and conducting weighted grading on the potential damage index value, the average detectable concentration value and the detection frequency value to obtain evaluation results of all pollutants. Water particular pollutants are screened according to the evaluation results, influences of damage index, average detectable concentration and detection frequency on pollutant screening can be fully considered, so that particular pollutants in water can be screened and determined quickly and accurately, and particular pollutant screening efficiency and accuracy are improved.
Description
Technical field
The present invention relates to water body detection technique field, particularly relate to a kind of underground water type drinking water source area characteristic contamination
Identifying approach.
Background technology
It is to be caused the use value of water head site water body reduce or lose by harmful chemical that water pollutes.Acid in sewage,
Alkali, oxidant, the compound such as Yi Jitong, cadmium, hydrargyrum, arsenic, the organic poison such as benzene, dichloroethanes, ethylene glycol, aquatic life can be poisoned with poison
Thing, affects drinking water source.Consume the oxygen in water when Organic substance in sewage is decomposed by the microorganisms, affect hydrobiological life,
After oxygen in water exhausts, Organic substance carries out anaerobic digestion, produces the offensive gases such as hydrogen sulfide, mercaptan, makes water quality dislike further
Change.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of underground water type drinking water source area characteristic contamination and debates knowledge side
Method, it is possible to fast and accurately water body characteristic contamination is screened.
For solving above-mentioned technical problem, embodiments of the invention provide a kind of underground water type drinking water source area feature to pollute
Thing identifying approach, described underground water type drinking water source area characteristic contamination identifying approach includes:
Evaluation index is chosen according to water quality standard for drinking water and water head site actual state；
According to evaluation index, the pollutant in water body are carried out pollution determination, obtain pollution determination result；
Potential damage index score value, average concentrations score value and the detection frequency is calculated in conjunction with described pollution determination result
Score value；
Described potential damage index score value, average concentrations score value and detection frequency score value are weighted scoring,
To the evaluation result of each pollutant, according to described evaluation result, water body characteristic contamination is screened.
Preferably, choose evaluation index according to water quality standard for drinking water and water head site actual state, including:
Water quality conventional index and the unconventional index of water quality is chosen according to water quality standard for drinking water；
Described water quality conventional index includes: the sensory properties index of water, the chemical property index of water, subsoil water toxicology
At least one in index, groundwater microbial index and subsoil water radioactive indicator；
The unconventional index of water quality includes: in microbiological indicator, toxicity index, sensory properties and general chemical index extremely
Few one.
Preferably, the sensory properties index of described water includes: in color, turbidity, smelly and taste and naked eyes visible index
At least one；
The chemical property index of described water includes: pH value, total hardness, aluminum, ferrum, manganese, copper, zinc, volatile phenol, anion synthesize
At least one in agent, sulfate, chloride and oxygen consumption；
Described subsoil water toxicologic index includes: fluoride, cyanide, aluminum, arsenic, lead, hydrargyrum, chromium, nitrate, selenium and tetrachloro
Change at least one in carbon,
Described groundwater microbial index includes: total plate count, total coli group, heat-resisting coliform and E
At least one in bacterium
Described subsoil water radioactive indicator includes: at least one in totalαradioactivity and Total Beta Radioactivity；
The unconventional index of described water quality includes: toluene, ethylbenzene, benzopyrene, beryllium, boron, molybdenum, nickel, organochlorine pesticide Gamma Hexaochlorocyclohexane
With at least one in clofenotane.
Evaluation index is chosen according to water head site actual state, including:
Produce product according to water body location enterprise and sewage discharge situation chooses evaluation index.
Preferably, described according to evaluation index, the pollutant in water body are carried out pollution determination, obtain pollution determination
As a result, including:
Pollution determination is carried out ratio with pollutant evaluation criterion value and is worth to pollution determination result.
Preferably, calculate potential damage index score value in conjunction with described pollution determination result, including:
Utilize below equation calculate described potential damage index score value:
N=2aa'A+4bB
Wherein: N is potential damage index, A is the AMEG of chemical substanceAHCorresponding value, B is potential " three cause " chemicals
Value corresponding to the AMEGAC of matter, a, a', b are constant term；
AMEGAHComputational methods are as follows:
AMEGAH(μg/m3)=threshold limit value (or recommendation)/420 × 10.
In formula, threshold limit value-chemical substance safe level (mg/m in research space3, time weight value)；
Recommendation-chemical substance is maximum concentration recommendation (mg/m in research space3).Recommendation do not have threshold limit value or
Recommendation uses less than during threshold limit value；
, or:
AMEGAH(μg/m3)=0.107 × LD50 (mg/kg)
The data of LD50 mainly give poison as foundation with rat per os.If there is no the rat oral LD50 to poison, it is also possible to
Its mouse oral replaces to other toxicology datas such as the LD50 of poison；
The AMEG of potential " three cause " chemical substanceACAnd calculate: AMEGACI.e. air affects as foundation with " three cause "
AMEG, AMEGACComputing formula be:
AMEGAC(μ g/m3)=threshold limit value/420 × 103；
In formula, threshold limit value is the safe level (mg/m in the water of " three cause " material or " three cause " suspicious item3)。
AMEGAC(m)=103/ (6 × adjust sequence code)；
In formula, adjust the index that sequence code is reflection chemical substance " three cause " potentiality.
Preferably, calculate average concentrations score value in conjunction with described pollution determination result, including:
Pollutant levels are added up, removes exceptional value, according to average concentrations maximum and minima, use several
What staging, utilizes geometric progression to determine average concentrations score value.
Preferably, calculate average concentrations score value in conjunction with described pollution determination result, including:
Below equation is utilized to determine average concentrations score value:
an=a1qn-1
In formula: anFor average concentrations maximum, a1For average concentrations minima, q is to wait specific ray constant, and n is average
Concentrations score value.
Preferably, described to described potential damage index score value, average concentrations score value and detection frequency score value carry out
Weighted scoring, obtains the evaluation result of each pollutant, screens water body characteristic contamination according to described evaluation result, bag
Include:
Utilize below equation that described potential damage index score value, average concentrations score value and detection frequency score value are carried out
Weighted scoring:
R=u × N+v × C+w × F
Wherein, R is pollutant evaluation result, and N is potential damage index score, and u is potential damage index score weighted value,
C is average concentrations score, and v is average concentrations score weighted value, and F is detection number of times score, and w obtains for detection number of times
Fraction weight values.
Preferably, the weighted value of described potential damage index score is 3, and the weighted value of described average concentrations score is
1, the weighted value of described detection number of times score is 1.
Preferably, described according to described evaluation result, water body characteristic contamination is screened, including:
Carry out classification according to the score value of evaluation result, according to classification, water body characteristic contamination is screened.
Having the beneficial effect that of the technique scheme of the present invention:
Such scheme, it is possible to choose the evaluation index to underground water type water head site water pollution analyte detection, and root accurately
Detect according to evaluation index, utilize potential damage index score value, average concentrations score value and detection frequency score value to add
Power scoring, has taken into full account that pollutant are sieved by the factors such as hazard index score value, average concentrations score value and detection frequency score value
The influence degree of choosing, thus the characteristic contamination screening fast and accurately and determining in water body, improve underground water type water head site
The screening efficiency of characteristic contamination and accuracy.
Accompanying drawing explanation
Fig. 1 is the underground water type drinking water source area characteristic contamination identifying approach flow chart of the present invention.
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
As it is shown in figure 1, a kind of underground water type drinking water source area characteristic contamination identifying approach of the embodiment of the present invention, institute
State underground water type drinking water source area characteristic contamination identifying approach to include:
Step 101: choose evaluation index according to water quality standard for drinking water and water head site actual state.
Step 102: the pollutant in water body are carried out pollution determination according to evaluation index, obtains pollution determination knot
Really.
Step 103: combine described pollution determination result calculate potential damage index score value, average concentrations score value and
Detection frequency score value.
Step 104: described potential damage index score value, average concentrations score value and detection frequency score value are weighted
Scoring, obtains the evaluation result of each pollutant, screens water body characteristic contamination according to described evaluation result.
Wherein, characteristic contamination refer to reflect certain industry discharged pollutants in representational part, it is possible to
The pollution level of display the industry, typically can be understood as discharging more pollutant from amount.
The underground water type drinking water source area characteristic contamination identifying approach of the embodiment of the present invention, it is possible to it is right to choose accurately
The evaluation index of water pollution analyte detection, and detect according to evaluation index, utilize potential damage index score value, averagely detect
Concentration score value and detection frequency score value be weighted scoring, taken into full account hazard index score value, average concentrations score value and
The influence degree that pollutant are screened by the factors such as detection frequency score value, thus the feature screened fast and accurately and determine in water body
Pollutant, improve screening efficiency and the accuracy of characteristic contamination.
Preferably, choose evaluation index according to water quality standard for drinking water and water head site actual state, including:
Water quality conventional index and the unconventional index of water quality is chosen according to water quality standard for drinking water；
Described water quality conventional index includes: the sensory properties index of water, the chemical property index of water, subsoil water toxicology refer to
At least one in mark, groundwater microbial index and subsoil water radioactive indicator；
The unconventional index of water quality includes: in microbiological indicator, toxicity index, sensory properties and general chemical index extremely
Few one.
Preferably, the sensory properties index of described water includes: in color, turbidity, smelly and taste and naked eyes visible index
At least one；
The chemical property index of described water includes: pH value, total hardness, aluminum, ferrum, manganese, copper, zinc, volatile phenol, anion synthesize
At least one in agent, sulfate, chloride and oxygen consumption；
Described subsoil water toxicologic index includes: fluoride, cyanide, aluminum, arsenic, lead, hydrargyrum, chromium, nitrate, selenium and tetrachloro
Change at least one in carbon,
Described groundwater microbial index includes: total plate count, total coli group, heat-resisting coliform and E
At least one in bacterium
Described subsoil water radioactive indicator includes: at least one in totalαradioactivity and Total Beta Radioactivity；
The unconventional index of described water quality includes: toluene, ethylbenzene, benzopyrene, beryllium, boron, molybdenum, nickel, organochlorine pesticide Gamma Hexaochlorocyclohexane
With at least one in clofenotane.
Evaluation index is chosen according to water head site actual state, including:
Produce product according to water body location enterprise and sewage discharge situation chooses evaluation index.
Wherein it is possible to according to local work enterprise product kind, discharge of wastewater situation, the pollution that may contain in investigation waste water
Species index unconventional with subsoil water contrasts, and selects test event that may be present to test.Select drinking water quality
Index does not has, but the chemical substance bigger to harm, it is considered to the toxicity of chemical substance self and environmental behaviour, simultaneously
It is also contemplated that pollutant residual present situation in the environment.The general toxicity of chemical substance, " three cause property " are, and cumulative bad and chronic
The index of poisonous effect.
Preferably, described according to evaluation index, the pollutant in water body are carried out pollution determination, obtain pollution determination
As a result, including:
Pollutant in water body are carried out pollution determination according to evaluation index by multi collect detection site water body respectively,
Obtain pollution determination result.
Preferably, described according to evaluation index, the pollutant in water body are carried out pollution determination, obtain pollution determination
As a result, including:
Pollution determination is carried out ratio with pollutant evaluation criterion value and is worth to pollution determination result.
Preferably, calculate potential damage index score value in conjunction with described pollution determination result, including:
Utilize below equation calculate described potential damage index score value:
N=2aa'A+4bB
Wherein: N is potential damage index, A is the AMEG of chemical substanceAHCorresponding value, B is potential " three cause " chemicals
Value corresponding to the AMEGAC of matter, a, a', b are constant term；
The determination principle of A, B value can be as shown in table 1.
The determination of table 1 A, B value
The determination principle of a, a', b is as follows: when can find B value, a=1, during without B value, and a=2；Certain chemical substance has accumulation
Or during chronic toxicity, a'=1.25, only during acute toxicity, a'=1；When can find A value, b=1, when can not find A value, b=
1.5。
AMEGAHComputational methods are as follows:
AMEGAH(μg/m3)=threshold limit value (or recommendation)/420 × 10.
In formula, threshold limit value-chemical substance safe level (mg/m in research space3, time weight value)；
Recommendation-chemical substance is maximum concentration recommendation (mg/m in research space3).Recommendation is not having threshold limit value
Or recommendation uses less than during threshold limit value；
, or:
AMEGAH(μg/m3)=0.107 × LD50 (mg/kg)
The data of LD50 mainly give poison as foundation with rat per os.If there is no the rat oral LD50 to poison, it is also possible to
Its mouse oral replaces to other toxicology datas such as the LD50 of poison；
The AMEG of potential " three cause " chemical substanceACAnd calculate: AMEGACI.e. air affects as foundation with " three cause "
AMEG, AMEGACComputing formula be:
AMEGAC(μ g/m3)=threshold limit value/420 × 103；
In formula, threshold limit value is the safe level (mg/m in the water of " three cause " material or " three cause " suspicious item3)。
AMEGAC(m)=103/ (6 × adjust sequence code)；
In formula, adjust the index that sequence code is reflection chemical substance " three cause " potentiality.
Preferably, calculate average concentrations score value in conjunction with described pollution determination result, including:
Pollutant levels are added up, removes exceptional value, according to average concentrations maximum and minima, use several
What staging, utilizes geometric progression to determine average concentrations score value.
Preferably, calculate average concentrations score value in conjunction with described pollution determination result, including:
Below equation is utilized to determine average concentrations score value:
an=a1qn-1
In formula: anFor average concentrations maximum, a1For average concentrations minima, q is to wait specific ray constant, and n is average
Concentrations score value.
Preferably, calculate detection frequency score value in conjunction with described pollution determination result, including:
Detection number of times is averagely divided into five intervals by detection number of times minima and detection number of times maximum, and the most corresponding 1
Divide to 5 points.
Preferably, described to described potential damage index score value, average concentrations score value and detection frequency score value carry out
Weighted scoring, obtains the evaluation result of each pollutant, screens water body characteristic contamination according to described evaluation result, bag
Include:
Utilize formula that described potential damage index score value, average concentrations score value and detection frequency score value are carried out
Weighted scoring:
R=u × N+v × C+w × F
Wherein, R is pollutant evaluation result, and N is potential damage index score, and u is potential damage index score weighted value,
C is average concentrations score, and v is average concentrations score weighted value, and F is detection number of times score, and w is detection number of times score
Weighted value.
Preferably, the weighted value of described potential damage index score is 3, and the weighted value of described average concentrations score is
1, the weighted value of described detection number of times score is 1.
Preferably, described according to described evaluation result, water body characteristic contamination is screened, including:
Carry out classification according to the score value of evaluation result, according to classification, water body characteristic contamination is screened.
Embodiment
This according to centralized underground, the above city of region in 2010,2011 water type potable water source district investigation (table 2,
Table 3) characteristic contamination in subsoil water is marked according to water quality single pollution assessment method and has been screened.
2 2010 years underground water source mode of occurences of table and anaerobic condition basal status table
Unit: individual
Survey result in 2010 explicitly descend the main contamination index in water type water source be ferrum, manganese, total hardness, ammonia nitrogen, sulfate,
Fluoride, totalαradioactivity, permanganate index, pH, nitrate, total dissolved solid, cadmium, total coli group, total number of bacteria,
Chloride etc..Wherein, the water source exceeded standard because of the impact of total hardness, ammonia nitrogen and sulfate is respectively 10,8 and 7.Except routine
Outside index exceeding standard, 23 water sources are exceeded standard by impact of heavy metals, exceed standard 12, water source, 11, manganese, cadmium 1, totalαradioactivity including ferrum
3.
Drinking water in 2010 exceeds standard item and the water head site that exceeds standard statistics
In terms of main pollution source, in 54 water sources the most up to standard, 25 are affected by natural background, such as center, Hulunbeier City
City (Hailaer District, Ewenki automonous banner) water source because of natural background value height cause ferrum exceed standard 8.8 times, manganese exceed standard 5.6 times, Anhui
Province Fuyang City one water factory water source causes fluoride to exceed standard 0.47 times because of geologic structure impact；Remaining pollutant is mainly derived from water source
Industry point source, domestic pollution, agricultural area source etc. in protection zone.
3 2011 years underground water source mode of occurences of table and anaerobic condition basal status table
Unit: individual
Water type water source, underground in 2011 index that mainly exceeds standard is total hardness, ferrum, manganese, ammonia nitrogen, sulfate, fluoride, the biggest
Intestinal flora, pH, permanganate index, turbidity and nitrate.Wherein, exceed standard because of the impact of total hardness, ammonia nitrogen and sulfate
Water source is respectively 10,7 and 7.Additionally, 9 water source ferrum exceeds standard, 9 manganese exceed standard.
4 2011 years drinking waters of table exceed standard item and the water head site that exceeds standard statistics
In terms of main pollution source, 28 water sources are affected by natural background, cause 25 water overproofs, outside east, Beijing
Xi Xiangheyuan causes nitrate to exceed standard 0.72 times because of geologic structure impact, inner city, Hulunbeier City (Hailaer District, Ewenki
Automonous banner) water source because of natural background value height cause ferrum exceed standard 10.40 times, manganese exceed standard 4.03 times, Beihai Fisheries Base Guangxi Province is universal because of subsoil water
Cause water source pH value generally to exceed standard in slant acidity；Remaining pollutant is mainly derived from industry point source, life dirt in water conservation district
Dye, agricultural area source etc..
Utilize single pollution assessment method that the water head site characteristic contamination of investigation statistics is sieved according to subsoil water water standard
Choosing, the index exceeded standard mainly have pH value, ammonia nitrogen, fluoride, permanganate index, cadmium, turbidity, sulfate, chloride, manganese,
Total dissolved solid, ferrum, total number of bacteria, nitrate, totalαradioactivity, total coli group, total hardness, therefore below main selection
Several pollutant as characteristic contamination, ammonia nitrogen, fluoride, cadmium, sulfate, chloride, manganese, ferrum, nitrate, totalαradioactivity,
Total number of bacteria, total coli group.
According to the whole nation subsoil water exceed standard index distribution situation and pollution source distribution, select 40, certain Plain, basin subsoil water
Type potable water source district, for analyzing sample, uses method of weighting scores to carry out characteristic contamination screening, respectively to inorganic index exceeding standard feelings
Condition (table 6), Organic substance detection situation (table 7), potential damage index carry out mark (table 8), determine characteristic contamination kind.
Certain proluvial fan type area subsoil water inorganic index exceeding standard situation of table 6
Certain alluvial-proluvial fan type area organic pollution detection feature of table 7
Table 8 compound potential damage index and weighted scoring result
Potential damage index (N), mean concentration (C), the weight of frequency (F) are respectively defined as 3,1,1 by us,
Select total score R=3 × N+C+F, according to R, compound is ranked up, is shown in Table 9.Test compound total score in the range of 4-24, for
Being easy to the screening of typical pollutant, weighted scoring result is carried out classification, is divided into the first order less than 10,10～15 are divided into second
Level, 15～20 are divided into the third level, and 20～24 are divided into the fourth stage, classification results to refer to table 9.Therefore, underground water type potable water source district
Typical pollutant is as shown in table 9, and according to appraisal result, is divided into level Four, overall merit rank according to different influence degrees
The highest subsoil water extent of injury is the biggest.The method not only allows for routine monitoring project in subsoil water, considers underground simultaneously
Water has the organic pollution of potential hazard toxicity, obtains different material combined influence classification by comprehensive grading, and wherein first
Level and the second level include subsoil water routine monitoring item, there is relative uniformity with single pollution assessment method, and first and second grade to subsoil water
The relatively another two-stage of influence degree is less, third and fourth grade of index predominantly " three cause " toxic organics, adjusts at quality of groundwater
Should attach the importance during looking into and monitoring.
Table 9 typical pollutant inventory
The underground water type drinking water source area characteristic contamination identifying approach of the embodiment of the present invention, underground water pollution mainly comes
Come from work, agricultural and domestic pollution discharge, there is multiformity, influence factor's complexity, geographical frontier and generation position and be difficult to know
Not, feature that spatio-temporal difference is big, quality of groundwater is monitored and protect firstly the need of pollution source of groundwater is distributed into
Row investigation, groundwater pollutant migrates and is distributed in different hydrogeologic condition areas and there is significant difference, therefore water
Seedbed investigation of pollution sources must be carried out according to certain principle, in the hope of reacting pollution source of groundwater comprehensively, to greatest extent as far as possible
Distribution and pollution distribution situation, provide sufficient data and information for work further.This investigation of pollution sources method proposed
Take into full account physical geography, humane economy, weather information, the change of hydrogeologic condition, substantially covered subsoil water shadow
Ring bigger factor and condition, it is possible to the district of repercussion study rationally and effectively pollution source distribution.At pollution sources inventory
On the basis of identify characteristic contamination, it should set up in the purposes premise of groundwater source field, any index all should meet
The condition of drinking water, the therefore test of index and choose all should be according to country " Drinking Water water standard " (GB5749-
2006) and the regulation of " national underground standards of water quality " (GB/T14848-93) is carried out, this is two countries more than considering
Outside standard, also may the water standard of discharge not made to specify by domestic enterprise, but to underground diseases caused by retention of fluid with impacting
Pollutant include evaluation index in, use single pollution assessment method and method of weighting scores to water quality index exceeding standard rate, potential danger
Evil, frequency judge, identify priority pollutants and characteristic contamination.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, it is also possible to make some improvements and modifications, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (10)
1. a underground water type drinking water source area characteristic contamination identifying approach, it is characterised in that described underground water type is drunk
Water water head site characteristic contamination identifying approach includes:
Evaluation index is chosen according to water quality standard for drinking water and water head site actual state；
According to evaluation index, the pollutant in water body are carried out pollution determination, obtain pollution determination result；
Calculate potential damage index score value, average concentrations score value and the detection frequency in conjunction with described pollution determination result to divide
Value；
Described potential damage index score value, average concentrations score value and detection frequency score value are weighted scoring, obtain each
The evaluation result of pollutant, screens water body characteristic contamination according to described evaluation result.
Underground the most according to claim 1 water type drinking water source area characteristic contamination identifying approach, it is characterised in that root
Evaluation index is chosen according to water quality standard for drinking water and water head site actual state, including:
Water quality conventional index and the unconventional index of water quality is chosen according to water quality standard for drinking water；
Described water quality conventional index includes: the sensory properties index of water, the chemical property index of water, subsoil water toxicologic index,
At least one in groundwater microbial index and subsoil water radioactive indicator；
The unconventional index of water quality includes: at least in microbiological indicator, toxicologic index, sensory properties and general chemical index
Kind.
Underground the most according to claim 2 water type drinking water source area characteristic contamination identifying approach, it is characterised in that institute
The sensory properties index stating water includes: at least one in color, turbidity, smelly and taste and naked eyes visible index；
The chemical property index of described water includes: pH value, total hardness, aluminum, ferrum, manganese, copper, zinc, volatile phenol, anion synthetics,
At least one in sulfate, chloride and oxygen consumption；
Described subsoil water toxicologic index includes: fluoride, cyanide, aluminum, arsenic, lead, hydrargyrum, chromium, nitrate, selenium and carbon tetrachloride
In at least one,
Described groundwater microbial index includes: in total plate count, total coli group, heat-resisting coliform and colon bacillus
At least one
Described subsoil water radioactive indicator includes: at least one in totalαradioactivity and Total Beta Radioactivity；
The unconventional index of described water quality includes: toluene, ethylbenzene, benzopyrene, beryllium, boron, molybdenum, nickel, organochlorine pesticide Gamma Hexaochlorocyclohexane and drip
At least one in DDT.
Evaluation index is chosen according to water head site actual state, including:
Produce product according to water head site region enterprise and sewage discharge situation chooses evaluation index.
Underground the most according to claim 1 water type drinking water source area characteristic contamination identifying approach, it is characterised in that institute
State, according to evaluation index, the pollutant in water body are carried out pollution determination, obtain pollution determination result, including:
Pollution determination is carried out ratio with pollutant evaluation criterion value and is worth to pollution determination result.
Underground the most according to claim 1 water type drinking water source area characteristic contamination identifying approach, it is characterised in that knot
Close described pollution determination result and calculate potential damage index score value, including:
Utilize below equation calculate described potential damage index score value:
N=2aa'A+4bB
Wherein: N is potential damage index, A is the AMEG of chemical substanceAHCorresponding value, B is potential " three cause " chemical substance
Value corresponding to AMEGAC, a, a', b are constant term；
AMEGAHComputational methods are as follows:
AMEGAH(μg/m3)=threshold limit value (or recommendation)/420 × 10.
In formula, threshold limit value-chemical substance safe level (mg/m in research space3, time weight value)；
Recommendation-chemical substance is maximum concentration recommendation (mg/m in research space3), it is recommended that value is not having threshold limit value or recommendation
Value uses less than during threshold limit value；
Or:
AMEGAH(μg/m3)=0.107 × LD50 (mg/kg)
The data of LD50 mainly give poison as foundation with rat per os.If there is no the rat oral LD50 to poison, it is also possible to mice
Per os replaces to other toxicology datas such as the LD50 of poison；
The AMEG of potential " three cause " chemical substanceACAnd calculate: AMEGACI.e. with " three cause " impact AMEG as foundation in air,
AMEGACComputing formula be:
AMEGAC(μ g/m3)=threshold limit value/420 × 103；
In formula, threshold limit value is the safe level (mg/m in the water of " three cause " material or " three cause " suspicious item3)。
AMEGAC(m)=103/ (6 × adjust sequence code)；
In formula, adjust the index that sequence code is reflection chemical substance " three cause " potentiality.
Underground the most according to claim 1 water type drinking water source area characteristic contamination identifying approach, it is characterised in that knot
Close described pollution determination result and calculate average concentrations score value, including:
Pollutant levels are added up, removes exceptional value, according to average concentrations maximum and minima, use geometry to divide
Level method, utilizes geometric progression to determine average concentrations score value.
Underground the most according to claim 6 water type drinking water source area characteristic contamination identifying approach, it is characterised in that knot
Close described pollution determination result and calculate average concentrations score value, including:
Below equation is utilized to determine average concentrations score value:
an=a1qn-1
In formula: anFor average concentrations maximum, a1For average concentrations minima, q is for waiting specific ray constant, and n is average detection
Concentration score value.
Underground the most according to claim 1 water type drinking water source area characteristic contamination identifying approach, it is characterised in that institute
State and described potential damage index score value, average concentrations score value and detection frequency score value are weighted scoring, obtain each dirt
The evaluation result of dye thing, screens water body characteristic contamination according to described evaluation result, including:
Utilize formula that described potential damage index score value, average concentrations score value and detection frequency score value are weighted
Scoring:
R=u × N+v × C+w × F
Wherein, R is pollutant evaluation result, and N is potential damage index score, and u is potential damage index score weighted value, and C is
Average concentrations score, v is average concentrations score weighted value, and F is detection number of times score, and w obtains fraction for detection number of times
Weight values.
Underground the most according to claim 8 water type drinking water source area characteristic contamination identifying approach, it is characterised in that institute
The weighted value stating potential damage index score is 3, and the weighted value of described average concentrations score is 1, and the described detection frequency obtains
The weighted value divided is 1.
Underground the most according to claim 1 water type drinking water source area characteristic contamination identifying approach, it is characterised in that
Described according to described evaluation result, water body characteristic contamination is screened, including:
Carry out classification according to the score value of evaluation result, according to classification, water body characteristic contamination is screened.
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| CN112926209A (en) * | 2021-03-01 | 2021-06-08 | 珠海海壹水产饲料有限公司 | Method for identifying forming degree of aquatic animal excrement and application thereof |
| CN113917102A (en) * | 2021-10-09 | 2022-01-11 | 中国人民大学 | Method for acquiring copper short-term water quality reference through parameter correction |
| CN114324797A (en) * | 2021-12-28 | 2022-04-12 | 国家能源投资集团有限责任公司 | Mine water quality safety evaluation method for coal mine underground reservoir |
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