建设用地土壤污染状况调查是环境管理的起点,为了保障人居环境安全,必须保障调查质量.若建设用地有土壤污染风险,则要开展土壤污染状况调查.本文以某工业企业地块为例,开展土壤污染状况调查,分析该地块地下水中重金属含量与pH的关系.调查结果表明,pH与Cu、Cd、Ni含量大致成正相关,重金属含量随pH的升高而增大;pH保持定值时,不同重金属在地下水中的含量排序为Cu>Ni>Cd.本研究可以为同类型地块土壤污染状况调查提供借鉴.
The investigation of soil pollution on construction land is the starting point of environmental management,in order to ensure the safety of the living environment,it is necessary to ensure the quality of the investigation.If there is a risk of soil pollution on construction land,a soil pollution survey should be conducted.This paper takes a certain industrial enterprise plot as an example to conduct a soil pollution survey and analyze the relationship between heavy metal content and pH in the groundwater of the plot.The survey results show that pH is roughly positively correlated with the content of Cu,Cd,and Ni,and the content of heavy metals increases with the increase of pH;when the pH is maintained at a constant value,the content order of different heavy metals in groundwater is Cu>Ni>Cd.This study can provide reference for the investigation of soil pollution status in similar plots.