贵阳市城区路侧土壤重金属分布特征及污染评价

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	贵阳市城区路侧土壤重金属分布特征及污染评价
	王济 1; 张浩 2; 曾希柏 1; 白玲玉 1
刊名	环境科学研究
	2009
卷号	22 期号:8 页码:950-955
关键词	城市土壤基线重金属污染地积累指数
ISSN号	1001-6929
其他题名	Distribution and Pollution Assessment of Heavy Metals in Roadside Soil of Guiyang City,China
英文摘要	研究了贵阳市城区各交通干线两侧表层土壤中重金属的质量分数、空间分布特征及其影响因素.以基线作为参比值,采用地积累指数法对其污染程度进行评价.结果表明:各交通干道两侧土壤中重金属质量分数存在显著差异,除Pb和Cr外,其余重金属质量分数均高于中国表层土壤重金属元素背景值和贵阳市表层土壤重金属元素基线值. 整体上,贵阳市路侧土壤尚未受到Pb和Cr的污染,其w(Hg),w(Cd)和w(Zn)已达中度污染甚至强污染水平,同时各路段也受到了不同程度的As,Cu和Ni污染,但并不严重. 据调查,路侧土壤中重金属质量分数及其分布格局主要受到燃煤、交通运输、地形及路况、气象因素以及城市建设等的影响.; The concentration and spatial distribution of heavy metals in roadside soil of Guiyang and its affecting factors were studied.Taking the baseline values as references,the method of indexing geo-accumulation was applied to assess heavy metal pollution in the roadside soil of Guiyang City.The results showed that the concentrations of heavy metals(Hg,Cd,As,Pb,Cr,Cu,Ni and Zn) varied significantly,and their concentrations were much higher than the environmental background value of Chinese surface soil and the baseline values of heavy metals in surface soils of Guiyang,with the exception of Pb and Cr.So,we could conclude that the soil has not been polluted by Pb and Cr,and the pollution of the roadside soil mainly resulted from Hg,Cd and Zn,which have caused medium or serious pollution.Moreover,the soil has been polluted by other heavy metals(As,Cu,Ni) to some extent,but not seriously.According to the investigation,the concentration and dispersion patterns of heavy metals are mainly affected by coal burning,transportation,terrain and road conditions,meteorological factors,construction of urban districts,and so on.
学科主题	环境科学基础理论
语种	中文
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/17304]
专题	农业环境与可持续发展研究所_环境修复研究室
作者单位	1.中国农业科学院农业环境与可持续发展研究所, 北京, 100081 2.贵州师范大学地理与环境科学学院, 贵州, 贵阳, 550001
推荐引用方式 GB/T 7714	王济,张浩,曾希柏,等. 贵阳市城区路侧土壤重金属分布特征及污染评价[J]. 环境科学研究,2009,22(8):950-955.
APA	王济,张浩,曾希柏,&白玲玉.(2009).贵阳市城区路侧土壤重金属分布特征及污染评价.环境科学研究,22(8),950-955.
MLA	王济,et al."贵阳市城区路侧土壤重金属分布特征及污染评价".环境科学研究 22.8(2009):950-955.