Preliminary investigation and evaluation method of site environment—taking the original site of a chemical enterprise in Jiangsu province as an example
This paper takes the plot of the original plant area of a chemical enterprise as the research object, and divides the potential pollution area of the site on the basis of the data collection and site survey of the enterprise, and preliminary identification of the pollution source and main pollutants, in the site and surrounding areas. A total of 20 soil monitoring points and 6 groundwater monitoring points were set up to analyze the analysis of heavy metals, VOCs and SVOCs. The results showed that the standard rates of arsenic and copper in the massif were higher than those of the control massif, and the standard rates were 18. 83% and 0. 14%, 16 factors were detected in VOCs block, and the detection value of SQ3 (0 ~ 50cm) benzene was more than the standard value, the standard rate was 244. 3%, and 9 of the SVOCs massif were detected, among which, the factor was phthalic two formic acid two (2- Ethyl hexyl ester (ethyl hexyl) ester has the highest standard rate, and the value is 45. 3%. It also puts forward the requirement of detailed site environmental investigation and risk assessment for the initial screening of SQ3 with high risk area.
chemical industry blocksoil pollutiongroundwater pollutionsite environment