某钢丝绳典型产业区土壤重金属含量现状调查

以钢丝绳产业集聚区内的土壤为研究对象，采集和分析产业区中心河两边淹水环境下的水稻田、少用受污染河水灌溉的棉花田及不用受污染河水灌溉的蔬菜地样本，结果表明，产业区内土壤中铅和锌的含量明显高于产业区外。产业区内除水稻田土壤中铅的质量比超过评价参比值外，其他灌溉方式下土壤中铅和锌的质量比均未超过《土壤环境质量标准》（GB 15618-1995）中的二级标准（pH值＞7）。统计分析表明，土壤中的重金属含量与废水灌溉方式有关，该产业区内土壤外源重金属来自钢丝绳产业的可能性很大。在不同的灌溉方式下，土壤剖面样品中的重金属含量随着土壤深度增加呈现降低的趋势，2010年和2011年的测定结果无显著差异。

Investigation of Heavy Metal Concentrations in Soils in Typical Wire Rope Industry Area

Soil samples from paddy fields irrigated by polluted water , cotton fields irrigated by less polluted water and vegetable fields irrigated by non-polluted water were sampled and analysed .The results showed that the content of lead and zinc in soil of industry zone was higher than that of outside the district .None of Pb、Zn in the studied region had over run the Grade Ⅱ standard of national 《Environmental Quality Standard for Soil》 （ GB 15618-1995 ） except Pb in the paddy fields .Statistical analysis showed that , the heavy metal concentration of soil had relation with the irrigation pattern .The results suggested Pb、Zn pollution in the soil more likely come from the wire rope industries .In different irrigation modes , contents of heavy metals in soil samples decreased with the increase of soil depth ..There was no significant difference between the determination results of 2010 and 2011 .