太原市公园土壤重金属污染研究

通过对太原市区5个代表性公园的土壤取样调查,测定土壤中Cd,As,Pb,Cr的含量,结果显示,研究区大部分土壤样品Cd,As,Cr,Pb含量低于土壤环境质量二级标准,但与太原市土壤背景值相比,Pb表现为强烈富集,Cr较强富集,As,Cd有一定的富集,说明这些地区土壤均已受到人为因素的影响。与国内其他城市比较,太原公园土壤Pb和Cr含量相当高;As含量较高;Cd含量处于中等水平。重金属Pb和Cr,Cd,As含量之间呈现不同程度的正相关,说明太原市公园土壤部分重金属来源相似。

The Study on Soil Heavy Metal Pollution in Taiyuan Urban Parks

The survey of soil heavy metal pollution in five representative Taiyuan urban parks,show that,the average concentration of soil heavy metals Cd,As,Cr and Pb in the study area are all below the second national quality standards.But compared to soil background values of Taiyuan,Pb is extremely enriched,Cr is strong enriched,As and Cd are enriched to a certain extent.This phenomenon show that soils in the study area had been polluted by man-made factors.Compared to other domestic cities,Pb and Cr are fairly hi...