【摘要】 用硝酸消解土壤样品后,采用空气—乙炔火焰AAS法测定镉(Cd)、铅(Pb)、铜(Cu)、锌(Zn)、镍(Ni)、铬(Cr)的含量,并使用单因子污染指数法及内梅罗综合污染指数法评估了岳阳地质土壤中重金属污染情况.结果显示:岳阳楼区和云溪区污染等级为中度污染;临湘市被镉、铅、锌轻度污染;湘阴县受镉、铜、铬轻度污染;汨罗市受镉轻度污染;岳阳县因镍轻污染出现警戒线;平江县一采样点有镉轻污染;华容县、君山区未被污染.更多还原

【Abstract】 Soils are digested with nitric acid, determining cadmium, lead, copper, zinc, nickel and chromium by AAS. Using Single factor pollution index method and N.L.Nemerow integrated pollution index evaluating pollution status of heavy metals in Yueyang areas. The results show that the content of heavy metals in Yueyanglou District and Yunxi District are in middle level pollution levels, Linxiang City is polluted lightly by Cd, Pb, Zn; Xiangyin County is polluted by Cd, Cu, Cr; Yueyang County shows warning line because of pollution of Ni; One of the Pingjiang County’s sampling points has light pollution of Cd; Huarong County and Junshan District haven’t been polluted yet.更多还原