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义马市某工业废渣堆积场土壤重金属污染状况研究
杨阳,茹广欣,朱秀红,王鋆瑞,魏凯,杨永红
0
(河南农业大学林学院,郑州 450002)
摘要:
通过野外观测和室内分析相结合的方法,研究了义马市某工业废渣堆存场土壤重金属污染现状。结果表明,该区域主要受Cr、Pb、Cu、Zn 4种重金属污染,不同重金属污染程度差异明显,依次为 Cr﹥Pb﹥Cu﹥Zn,其中Cr为主要污染源。用内梅罗综合污染指数法分析表明,4个区域的污染程度从高到低为区域3(重污染)﹥区域1(重污染)﹥区域2(警戒)﹥区域4(安全),Hakanson潜在生态风险指数法分析表明,4个区域潜在生态风险均为轻微风险程度。该地工业废渣较多,虽经处理和管控,但显示周边已出现污染问题,亟需对废渣源进行治理。
关键词:  工业废渣  重金属污染  土壤  调查和评价
DOI:
投稿时间:2013-05-14
基金项目:河南省科技攻关项目(132102110127)和郑州市科技领军人才项目(10LJRC177)共同资助。
Soil heavy metals pollution around an industrial residue deposit in Yima city
YANG Yang,RU Guang-xin,ZHU Xiu-hong,WANG Yun-rui,WEI Kai,YANG Yong-hong
(College of Forestry, Henan Agricultural University, Zhengzhou 450002)
Abstract:
Through field observation and laboratory analysis,we studied the soil heavy metals pollution around an industrial residue deposit in Yima City. The result showed that the region was mainly polluted by Cr, Pb, Cu and Zn. The pollution levels of different heavy metals were significantly different, and the order for pollution degree was Cr﹥Pb﹥Cu﹥Zn, which meant that Cr was the major pollutant. By Nemerow multi-factor index method, the pollution level of four regions was that region 3 (heavy)﹥region 1 (heavy)﹥region 2 (alert)﹥region 4 (safe); By Hakanson potential ecological risk index method, the degree of ecological risk in four regions was all slight. The industrial waste residues are relatively more in the area. Although having been processed and controlled, the problem of soil pollution has already existed. We need to deal with the pollution source.
Key words:  industrial residue  heavy metal pollution  soil  survey and assessment

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