摘要
以泰顺县凤垟乡稻田土壤为研究对象,采集了 6 个种植区域站位点的土壤,通过电感耦合等离子质谱仪法测定了土壤中 Cu、Pb、Cd、Zn、Cr和 Ni含量,并采用单因子污染指数、内梅罗综合污染指数和地累积指数法对研究区域稻田土壤的污染程度进行了分析.结果表明:稻田土壤中 Cu、Pb、Cd、Zn、Cr 和 Ni的平均含量分别为 11.35、26.75、0.29、57.92、23.92、14.35 mg·kg-1.通过单因子污染指数、内梅罗综合污染指数和地累积指数法评价后,表明 6 个站位点均为无污染状态.通过与农用地土壤风险筛选值比对,所调查的稻田土壤重金属含量均值均小于对应的农用地土壤风险筛选值.
Abstract
Taking the paddy soil from Fengyang Town in Taishun County as the research object,soil samples were collected from six planting area sites.The contents of Cu,Pb,Cd,Zn,Cr and Ni in the soil were determined using inductively coupled plasma mass spectrometry(ICP-MS).The pollution degree of the paddy soil in the study area was analyzed using the single factor pollution index,Nemerow comprehensive pollution index,and geoaccumulation index methods.The results showed that the average contents of Cu,Pb,Cd,Zn,Cr and Ni in the paddy soil were 11.35,26.75,0.29,57.92,23.92 and 14.35 mg·kg-1,respectively.The single factor pollution index,Nemerow comprehensive pollution index,and geoaccumulation index methods indicated that all six sampling sites were in a non-polluted state.Compared with the risk screening values for agricultural soil,the average heavy metal content in the surveyed paddy soils was lower than the corresponding risk screening values for agricultural soil.
维普
万方数据