摘要
对广东省河源市中心城区的表层土壤进行了取样调查工作,测定了金属元素的含量,并对其污染状况进行评价,数据表明:城区表层土壤存在多种重金属元素异常,其中Pb和As表现出富集特征,来源指向汽车尾气及其它工业活动的排放。重金属含量要明显低于其它大城市,该市环境风险指数(IER)为0.43,属于2级指数范畴,总体评价为低环境风险,但作为一个主要以轻工业、农业和旅游业为主的城市,也存在进一步恶化的趋势。
Metal elementsconcentrations of surface soils taken from Heyuan central urban areaof Guangdong province were analyzed. The pollution index was calculated. The geochemical characteristics of the elements in the samples are given in this paper. Anomalies of Pb and As heavy metal elements were found in surface soil. The sources of abnormal elements are closely related to automobile exhaust and other industrial activities. The city＇s environmental risk index （IER） is 0.43, belong to the category of 2nd level, shows a low environmental risk.As a major light industry and tourism-oriented city, the heavy metal content in Heyuan is significantly lower than other major cities. But there are also elements of the abnormal area, should attract attention of local government and residents.
作者
王世彪
陈庆丰
付立锋
Wang Shibiao Chen Qingfeng Fu Lifeng(Guang Dong Nonferrou Metals Engineering Investigation Design Institute, Guangzhou 510080, China Liaoning Chemical Geology Prospecting Institute, Jinzhou 121011, China)
出处
《化工矿产地质》
CAS
2016年第4期232-236,共5页
Geology of Chemical Minerals
关键词
土壤
重金属元素
聚类分析
地球化学特征
环境风险指数
Soil
Heavy metals
Clustering analysis
Geochemical characteristic
Environmental risk index
