摘要
地下水是饮用水的重要来源之一，矿区城市地下水受到的污染往往较为严重。为掌握地下水水质状况，对地下不同深度含水层内多种污染物指标超标率进行了试验分析，并用最小二乘拟合法对试验数据进行处理，得到氰化物、氯化物、金属元素和有机物超标率与含水层深度的函数关系。分析结果显示，当含水层深度达100m时，各种元素的超标率基本为0％，可理解为深度超过100m的地下水几乎没有受到污染。
Groundwater is one of important drinking water sources, but has been contaminated more seriously in mining areal cities. To know the status of groundwater quality, tests for standard exceeding rates of various pollutants in groundwater were carried out at different depths of the aquifer, and the least squares fitting method was used to do processing of the data to attain the functional relationships of exceeding rates of cyanides, chlorides, metallic elements and organic compounds with aquifer depths. It was shown that at the aquifer 100 metres deep, all variables in groundwater were in compliance with the standard in the main, i.e., groundwater at depth of 100 metres and beyond has almost not suffered from being contaminated.
出处
《上海环境科学》
CAS
2016年第2期60-62,共3页
Shanghai Environmental Sciences
关键词
地下水污染
污染物超标率
最小二乘拟合
矿区城市
Groundwater contamination Standard exceeding rate of pollutant Least squares fittingMining areal city
