摘要
以安徽省铜陵市冬瓜山杨山冲尾矿坝土壤为研究对象,根据其空间分布特点采集了表层与剖面23个样品,系统性地分析了6种重金属元素(As,Cr,Cu,Pb,Ni,Zn)的分布特征。同时,结合内梅罗综合污染指数法、地累积指数法、潜在生态危害评价法,运用单因子污染指数对该地区的重金属污染现状进行了综合评价。研究发现,通过3种评价方法得到的结果基本一致,即As和Cu元素污染较为严重,生态危害性强; Zn元素污染较轻,具有轻微的生态危害; Cr,Pb,Ni元素均未达到污染水平,具有轻微的生态危害。重金属污染程度与矿产开采活动密切相关,该评价结论可为矿区土壤环境的进一步治理提供科学依据。
Soil samples from surface and profile soil in Dongguashan,Tongling,Anhui were chosen as the study object,and a total of 23 samples were collected. The distribution characteristics of heavy metals,including As,Cr,Cu,Pb,Ni and Zn in all the samples were analyzed. By using Nemero comprehensive pollution index method,ground accumulation index method,and potential ecological hazard assessment method,the comprehensive assessment of the situation of soil heavy metal pollution was made with single factor pollution index.The results showed that the evaluation results obtained by using the three methods were basically consistent,As and Cu were more polluted,which has stronger ecological hazard;Zn was less polluted with slight ecological danger;Cr,Pb and Ni didn’t reach the pollution level. The pollution degree of heavy metals was closely related to human mining activities. This conclusion can provide a scientific basis for further treatment and management of the mining area.
作者
吕达
LYU Da(School of Geology and Construction Engineering,Anhui Industrial Economy Vocational and Technical College,Hefei Anhui 230051;School of Earth and Space Sciences,University of Science and Technology of China,Hefei Anhui 230026)
出处
《湖北理工学院学报》
2019年第1期18-22,44,共6页
Journal of Hubei Polytechnic University
基金
安徽省高校自然科学重点研究项目(项目编号:KJ2017A643)
关键词
单因子污染指数
内梅罗综合污染指数
地累积指数
潜在生态危害评价
重金属污染
single factor pollution index
Nemero comprehensive pollution index
ground accumulation index
potential ecological hazard assessment
heavy metal pollution
