上海郊县土壤和农作物中金属元素的污染评价

The evaluation of metal elements pollution in soils and crops in the suburbs of Shanghai

从上海郊县土壤及农作物中Ｃｄ等９种金属元素的含量及其地域分布特点，研究了土壤与农作物中金属元素的相关性及土壤与农作物籽粒中金属元素含量的关系；指出了不同农作物中金属元素含量的差异性；局部地区由于土壤中Ｃｄ含量较高，致使粮食中Ｃｄ含量超过国家允许标准。

The contents and regionally distributing characteristics of 9 metal elements,such as Cd et al,in soils and crops in the suburbe of Shanghai are discussed.The correlations between metal elements in soils and crops,and between contents of metal elements in soils and crop seeds have also been studied.The results showed that there are some differences in contents of metal elemen ts among crop varieties。A higher Cd content in soil of some areas has caused Cd content in grains over the state’s standard.