摘要
以我国东部某城市城区表层土壤环境指标为研究对象,采用一元线性回归和主成分分析的方法研究了城市土壤中六六六(HCHs)、滴滴涕(DDTs)、多环芳烃(PAHs)、有机质含量,含水量,重金属含量,土壤pH值等指标间的相关性,确认长期的工业活动是导致土壤重金属和多环芳烃污染的主要来源,城市绿地施用农药是土壤六六六和滴滴涕污染的主要来源。
The topsoil samples in some urban areas were collected and analyzed for urban soil pollution investiga- tion. The unitary linearity regression (ULR) and Principal Component Analysis (PCA) methods were used to study the correlations of some parameters such as HCHs, DDTs, PAHs, organic matters, water-content, heavy metals and pH in the urban soils. The results indicate that the long-term industrial activity is the major source of heavy metal and PAHs pollution in urban soils. And HCHs and DDTs pollution result manily from plenty of pesti-cides used in the city greenhelt.
出处
《岩矿测试》
CAS
CSCD
2007年第4期309-312,共4页
Rock and Mineral Analysis
基金
国土资源地质大调查--上海市三维城市地质调查项目资助(1212010511102)
关键词
有机污染物
重金属
相关分析
主因子
城市土壤
organic pollutant
heavy metal
correlation analysis
principal component
urban soil