豫西丘陵煤矿区耕地重金属污染状况研究

为了研究煤矿长期开采活动(主要是煤矸石堆积淋溶和煤灰的飘尘)对周边矿区耕地重金属污染的影响,以河南省西部煤炭基地渑池和义马为试验区,科学系统选取采样路线进行采样,运用氢化物原子荧光法和原子吸收分光光度法对耕地土壤中的重金属元素进行分析,并由此开展土壤污染评价。结果表明:矿区耕地受重金属污染的程度依次为As>Cr>Hg>Pb,综合污染程度达到了轻度污染以上。

Studies on Heavy Metal Pollution of Soil in Mining Area of Western Part of Henan Province

In order to study the effects of heavy metal pollution on the soils around the Mining Area because of the long-term coal mining(mainly the gangue stack leaching and soot fly ash),samples were taken sysmetically in Mianchi and Yima coal bases of west Henan.The heavy metal elements of the soils were analyzed using hydride atom fluorescence method and atomic absorption spectrophotometric method,based on which the soil pollution was valued.The result showed that the synthetic pollution degree of heavy metal was higher than light in farming land around the ming area,with a pollution order of As>Cr>Hg>Pb.