南通市某钢丝绳行业集中区降尘中重金属污染状况评价

Heavy Metal Pollution and Its Assessment in Atmospheric Dust Fall of the Steel Wire Rope Industry Area in Nantong

针对南通市钢丝绳行业集中区重金属污染问题,分析降尘中的铅、镉、铬、铜、镍、铁、锌、锰等重金属含量,并采用污染指数法和地累积指数法对降尘中重金属污染状况进行评价。结果表明,该集中区降尘中重金属污染程度依次为Zn>Pb>Cd>Cu>Fe>Mn>Ni>Cr,铅、锌为主要污染因子,铅、锌污染级别均处于重污染级别。

Analyzed the contents of Heavy Metal in Atmospheric dust fall collected from the Wire Rope Industry area in Natong city.The assement for Heavy Metal with the method of Pollution Index and Geo-accumulation Index shown that the concentrations of Heavy Metals followed order of ZnPbCdCuFeMnNiCr.the main Pollution factor are Pb and Zn.Pollution level of Pb had reached high pollution.Pollution level of Zn had reached high pollution.