贵州贵阳市郊区菜园土壤重金属污染的初步调查

对贵州省贵阳市乌当、白云、花溪及清镇四个区域菜园土壤重金属Ｈｇ、Ｐｂ、Ａｓ、Ｃｒ、Ｃｄ污染现状进行了调查与分析，在分析各调查区域的环境背景特征的基础上，计算各区域菜园土壤重金属污染指数，应用对应分析技术，计算出各区域菜园土壤重金属的污染特征，结果表明：贵阳市郊区菜园土壤重金属污染相当严重，各调查区域间菜园土壤重金属污染有一定差异，总体上清镇、白云、花溪较乌当污染严重，各区域间Ｈｇ、Ｃｒ、Ａｓ污染水平差异明显，Ｐｂ、Ｃｄ污染差异不大，根据研究提出了控制贵阳市郊区菜园土壤重金属污染成因．

Heavy Metal Pollution in Vegetable-Planting Soils in the Suburbs of Guiyang City, Guizhou Provinec

Pollution of Hg, Pb, As, Cr, Cd in the vegetable planting soils in the suburbs of Guiyang city, guizhou province was investigated. Based on baseline study and measured concentrations of these metals in the soil, the pollution index was calculated and correspondence analysis was applied. The results showed that the soil pollution from the heavy metals was quite obvious. Different features of pollution were revealed in different regions in terms of different concentrations of As, Hg and Cr. In general, the pollution was more serious in Bainyun, Qingzhen, and Huaxi areas then that in Wudang.