摘要
分析了浙中某地2 300个表层土壤样品中8类重金属元素的含量,并与1987年区域化探数据比较,发现Cd、Hg、Pb、Cr、Ni、Cu、Zn等重金属出现了显著升高,升高的区域与工业区分布吻合。研究区内大约6.09%的土壤受重金属中—重程度的污染,40.26%的土壤达到轻污染,污染区的分布主要与交通干线和五金企业聚集区吻合,而与地质背景无关,表明研究区重金属污染主要来源于五金企业。
Based on data of heavy metals concentrations of 2 300 topsoil samples collected in central Zhejiang Province and regional ge-ochemical exploration conducted in 1987, the authors analyzed the characteristics of Cd, Hg, Pb, Cr, Ni, Cu and Zn concentrations. The concentrations of these 8 heavy metals increase significantly in the industrial districts. Approximately 6.09% and 40.26% of the soil is respectively subjected to moderate to heavy and slight pollution of heavy metals. The distribution of contaminated districts is consist-ent with the traffic trunk and hardware enterprise areas, and has nothing to do with the geological background, which indicates that the heavy metals are derived from local hardware enterprises.
出处
《物探与化探》
CAS
CSCD
2014年第1期135-141,共7页
Geophysical and Geochemical Exploration
关键词
重金属污染
土壤
五金企业
heavy metal pollution
soil
hardware enterprises
