Regional soil environment priority control pollutant screening method based on health risk

Abstract

The invention relates to a regional soil environment priority control pollutant screening method based on health risk. The method comprises the following steps of: (1) preliminarily screening out pollutants to be subjected to priority control in a regional soil environment; (2) removing pollutants which are not appointed in a Chinese environment priority control pollutant blacklist, an American environmental protection agency (EPA) focal control pollutant name list and a potential chemical priority control name list in China, surveying and sampling in the site, and removing pollutions with low over standard rate and low detection rate; (3) constructing a first-level screening system according to the durability, the environment effect, the bioeffect and the biological toxicity in the pollutant environment, and selecting pollutants with relatively high mark levels by a multi-index comprehensive evaluating method; (4) determining a population exposure way, constructing a second-level screening system, performing toxicity estimation, and selecting pollutants with relatively high single toxicity; and (5) determining the regional soil environment priority control pollutants by considering the health risk as well as the environment control and monitoring feasibility.

Description

technical field [0001] The invention relates to the fields of environmental science and health risk assessment, and relates to a method for screening pollutants, more specifically a method for screening and preferentially controlling toxic and harmful pollutants in regional soil environment based on a population health risk evaluation standard. Background technique [0002] With the increase of regional soil environmental pollution year by year and the improvement of the understanding of the soil environment in the protected area, the need for monitoring and treatment of relevant regional soil environmental pollutants is becoming more and more urgent. Soil is an important biological habitat, and also the "source" and "sink" of heavy metal and organic pollution. After heavy metals, organic matter and other pollutants enter the natural water body, most of them are adsorbed by suspended particulate matter and transferred to the soil. When the pH and redox potential of the soil...

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Problems solved by technology

[0004] In addition, although some of the existing research methods have been optimized, considering multi-index parameters or multi-level screening, they only consider the hazar

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