Assessment method for heavy metal contaminated sites in southern China

Abstract

The invention discloses an assessment method for heavy metal contaminated sites in southern China. The assessment method comprises the following steps of A, initiating risk assessment; B, identifyinghazards; C, conducting exposure assessment and toxicity assessment; D, conducting risk characterization; E, judging whether or not the risk is acceptable; F, yes, ending the risk assessment; G, no, calculating soil limitation based on carcinogenic risks and the soil limitation based on non-carcinogenic risks; H, putting forward a soil repair suggestion control value, and ending the risk assessment. According to the method, monitoring points are located in the area which may be directly contacted with heavy metals, the sampling depth mainly adopts the upper layer of soil, simultaneously the soil samples collected are screened preliminarily by a heavy metal detector, the samples with high detection value are selected for laboratory analysis, on the one hand, the contamination condition of investigation sites can be determined quickly and preliminarily, and on the other hand, the optimization of detection funds can be achieved, which in line with own interests of people.

Description

technical field [0001] The invention relates to the technical field of site evaluation, in particular to an evaluation method for heavy metal polluted sites in southern China. Background technique [0002] Urban construction is an important part of urban management. Urban construction is based on planning. The urban living environment is transformed through construction projects, and various material facilities in the urban system are constructed. The content of urban construction includes the maintenance of various material facilities in the urban system. The physical form is the basic and phased work to create good conditions for the management of the city. It is a special economic work with obvious process and periodicity. After the city is planned and constructed, it will be put into operation and function, and provide services. Citizens create a good living environment, guarantee citizens' normal life, and serve urban economic and social development. Therefore, urban co...

AI Technical Summary

Problems solved by technology

[0009] Site assessment is the general term for site environmental investigation and risk assessment. Through the investigation of the site environment, it can be concluded whether the area is suitable for human habitation, so as to protect the health of human habitation. However, due to the random distribution of monitoring points in existing assessment techniques In the area to be evaluated, each sample is sent to the laboratory for analysis, which not only reduces the evaluation efficiency, but also increases the expenditure of inspection funds

Images