摘要
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 data obtained show that the soils of all six sampling locations are pollutedby Cd,among them the Cd concentrations in soils of the second location exceeded the seriouslevel.But only the soils of the fifth location was polluted by Cu among the other elementsstudied and no pollutions of Zn,Pb,Cr,F in soils have been found.Vegetables in all the sixsampling locations are polluted by Cd and the Cd concentrations of Chinese cabbage,turnipleaf and garlic are all above the standard of food sanitation in vegetables(0.05 mg/kg).Re-markable correlativity was found between Pb and Zn concentrations in soils.The Cu,Zn andCd concentrations of some vegetables are correlated to the concentrations of the same ele-ments in siols.
关键词
菜园土
蔬菜
重金属污染
氟
garden mould
vegetable crops
heavy metal pollution
fluorine
pollutants transfer
Shaoyang/heavy metal accumulation
