论文部分内容阅读
研究了邵阳市郊菜园土及部分蔬菜中Cu,Zn 等重金属和F 的含量及其污染状况,结果表明,菜园土都不同程度受到了Cd 的污染,其中第二采样区达到了重污染水平.第5采样区的菜园土Cu 达到了轻度污染水平,其余元素均未发现污染.蔬菜中也以Cd 污染严重,各采样区的黄芽白、萝卜叶、大蒜中Cd 的含量均超过卫生标准.土壤中Pb 与Zn 含量呈显著的相关性.土壤中与某些蔬菜中的Cu,Zn,Cd 含量有较好的相关性.
The contents of Cu, Zn and other heavy metals and F in the garden soil and some vegetables in Shaoyang suburbs and their pollution status were studied. The results showed that Cd and Cd were all contaminated in the garden soil, and the second sampling area reached the level of heavy pollution. Cu in the sampling area had a mild pollution level, and no pollution was found in the other elements. Cd was also seriously polluted in vegetables, and Cd content in yellow buds, radish leaves and garlic in each sampling area exceeded the hygiene standards. There was a significant correlation between Pb and Zn contents in soils, and there was a good correlation between Cu, Zn and Cd contents in some soils.