CAJ | 학술논문

分析了浙中某地2300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。
분석료절중모지2300개표층토양양품중8류중금속원소적함량，병여1987년구역화탐수거비교，발현Cd、Hg、Pb、Cr、Ni、Cu、Zn등중금속출현료현저승고，승고적구역여공업구분포문합。연구구내대약6．09％적토양수중금속중-중정도적오염，40．26％적토양체도경오염，오염구적분포주요여교통간선화오금기업취집구문합，이여지질배경무관，표명연구구중금속오염주요래원우오금기업。
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.