工业遗留地块重金属污染状况评价研究

Study on the Assessment of Heavy Metal Pollution Status in an Industrial Heritage Plot

为了解重庆市某工业遗留地块重金属污染特征及其潜在生态风险,本文在研究区内采集48组土壤样品和18组地下水样品,分析砷、镉、铜、铅、汞、镍、钴、锰8种重金属元素含量特征,并运用内梅罗指数法和潜在生态风险指数法,评价研究区的土壤与地下水污染状况。结果表明,研究区内土壤处于清洁状态,地下水中锰元素严重超标,地下水呈重度污染,存在很强的生态风险。

In order to understand the characteristics of heavy metal pollution and potential ecological risks of an industrial heritage plot in Chongqing City, 48 groups of soil samples and 18 groups of groundwater samples are collected in the study area to analyze the content characteristics of eight heavy metals, including arsenic, cadmium, copper, lead, mercury,nickel, cobalt and manganese, and Nemero index method and potential ecological risk index method are used to evaluate the soil and groundwater pollution in the study area in this paper. The results show that the soil in the study area is in a clean state, the manganese in groundwater seriously exceeds the standard, the groundwater is seriously polluted with strong ecological risks.