Method of monitoring, evaluating and early-warning soil and groundwater pollution in industrial park

A method of monitoring, evaluating and early-warning soil and groundwater pollution in an industrial park, comprising:

• Step 1:
• for the pollution sources in the industrial park, monitoring pollution status of soil, soil gas and groundwater by providing multi-index on-line monitoring points and devices, and collecting pollution-related data information;
• Step 2:
• establishing a groundwater pollution risk evaluating method based on a pollution source load risk, potential hazard of pollution sources and groundwater vulnerability according to the information about pollution sources and hydrogeology in the industrial park;
• Step 3:
• establishing an enterprise and park pollution early-warning evaluating method based on the pollution status of soil and groundwater according to data from a soil and groundwater pollution monitoring system in the industrial park;
• step 4:
• obtaining a pollution early-warning evaluation result based on the groundwater pollution risk evaluating method and the enterprise and park pollution early-warning evaluating method;
• and
• step 5:
• determining a remediation scheme or a rectification scheme based on the pollution early-warning evaluation result, and sending the remediation scheme or the rectification scheme to an enterprise corresponding to the pollution early-warning evaluation result;
• wherein in Step 3, establishing the enterprise and park pollution early-warning evaluating method based on the pollution status of soil and groundwater according to the data of the soil and groundwater pollution monitoring system in the industrial park, comprises:
• Step 301, evaluating soil pollution status according to positions of soil pollution monitoring points, nature of pollutants and a pollution degree in the pollution information, and establishing a soil pollution early-warning grade evaluation matrix;
• Step 302, evaluating groundwater pollution status according to positions of groundwater pollution monitoring points, nature of pollutants and a pollution degree in the pollution information, and establishing a groundwater pollution early-warning grade evaluation matrix;
• Step 303:
• establishing an enterprise pollution early-warning grade evaluation matrix according to soil and groundwater pollution early-warning grades of all monitoring points in the enterprise;
• and establishing a park pollution early-warning grade matrix according to a number and a position distribution of all monitoring points in the park and the pollution early-warning grade of each monitoring point;
• and
• Step 304:
• implementing corresponding measures according to the early-warning grade of the pollution status in the park;
• wherein in Step 301, evaluating the soil pollution status according to the positions of the soil pollution monitoring points, the nature of the pollutants and the pollution degree in the pollution information, and establishing the soil pollution early-warning grade evaluation matrix comprises:
• establishing an early-warning grade evaluation matrix according to the toxicity of the pollutants, the pollution degree, the number and the positions of pollution points, wherein, pollutants are first classified according to the relative positions between soil pollution points and the pollution sources, enterprise boundaries and park boundaries;
• second, the pollutants are first classified according to the toxicity and non-toxicity of the pollutants;
• third, the pollutants are classified according to whether pollution is detected, whether the pollution degree exceeds the standard and an evolution trend of the pollutants, wherein different classifications correspond to different pollution early-warning grades;
• wherein the pollution early-warning grades comprise a no-early-warning grade, a low-early-warning grade, a lower-early-warning grade, a medium-early-warning grade, a high-early-warning grade, a higher-early-warning grade and an extremely high-early-warning grade;
• a soil pollution early-warning grade of a single point is evaluated by first determining an early-warning grade Li of each of all soil pollutants [a1, a2, . . . , an] at the point to form a set L={L1, L2, . . . , Ln} and ranking the set, taking a highest early-warning grade as the soil pollution early-warning grade at the point;
• and the soil pollution early-warning grades at all monitoring points in the park are evaluated according to the same method;
• wherein in Step 302, evaluating the groundwater pollution status according to the positions of the groundwater pollution monitoring points, the nature of the pollutants and the pollution degree in the pollution information, and establishing the groundwater pollution early-warning grade evaluation matrix comprises:
• establishing an early-warning grade evaluation matrix according to the toxicity, the pollution degree, the number and the positions of pollution points, wherein, the pollutants are classified according to the relative positions between groundwater pollution points and the pollution sources, enterprise boundaries and park boundaries;
• second, the pollutants are classified according to the toxicity and non-toxicity of the pollutants;
• third, the pollutants are classified according to whether pollution is detected, whether the pollution degree exceeds the standard and an evolution trend of the pollutants, wherein different classifications correspond to different pollution early-warning grades;
• wherein the pollution early-warning grades comprise a no-early-warning grade, a low-early-warning grade, a lower-early-warning grade, a medium-early-warning grade, a high-early-warning grade, a higher-early-warning grade and an extremely high-early-warning grade;
• a groundwater pollution early-warning grade of a single point is evaluated by first, determining an early-warning grade Hi of each of all pollutants [b1, b2, . . . , bn] at the point to form a set H={H1, H2, . . . , Hn} and ranking the set, taking a highest early-warning grade as the groundwater pollution early-warning grade at the point, and the groundwater pollution early-warning grades at all monitoring points in the park are evaluated according to the same method;
• wherein in Step 303, establishing the enterprise pollution early-warning grade evaluation matrix according to the soil and groundwater pollution early-warning grades of all monitoring points in the enterprise, comprises:
• for all the soil and groundwater monitoring points in the enterprise, first, determining the soil pollution early-warning grade and the groundwater pollution early-warning grade of each monitoring point;
• second, ranking the soil pollution early-warning grades and the groundwater pollution grades of all monitoring points, and taking a highest grade as the soil and groundwater pollution early-warning grade in the enterprise;
• third, constructing the enterprise pollution early-warning grade evaluation matrix according to the classification of the soil and groundwater pollution early-warning grade in the enterprise, wherein a first classification scenario is that there are no soil pollution points or groundwater pollution points inside the enterprise;
• a second classification scenario is that there are only soil pollution points or groundwater pollution points;
• a third classification scenario is that there are soil pollution points and groundwater pollution points at the same time;
• the enterprise pollution early-warning grades are divided into seven early-warning grades:
• no early-warning, low early-warning, lower early-warning, medium early-warning, high early-warning, higher early-warning and extremely high early-warning;
• wherein in Step 303, establishing the park pollution early-warning grade matrix according to the number and the position distribution of all monitoring points in the park and the pollution early-warning grade of each monitoring point comprises:
• first, according to the positions of the pollution points in the industrial park, dividing the pollution points into two categories:
• pollution points inside the park but not at the boundary and pollution points at the boundary of the park;
• second, constructing an early-warning evaluation matrix according to the pollution early-warning grades and the number of all pollution points;
• third, constructing a comprehensive early-warning grade quantitative evaluation model;
• wherein comprehensively analyzing the number and position distribution of all monitoring points in the park and the pollution early-warning grade of each monitoring point to determine a park early-warning grade comprises:
• first, dividing all monitoring points in the park into two classes, wherein Class A comprises points not more than 500 m away from the park boundary, and Class B comprises points more than 500 m away from the park boundary;
• secondly, according to the number and the pollution early-warning grade classification of monitoring points ki at the industrial park boundary of Class A determining a pollution early-warning grade “a” at the park boundary;
• thirdly, according to the number and the pollution early-warning grade classification of monitoring points ni inside the park of Class B to determine a pollution early-warning grade “b” inside the park;
• and fourthly, taking a highest grade of “a” and “b” as the park early-warning grade.