| 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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| 引用本文： | 王济,张浩,曾希柏,白玲玉. 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 |
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| 作者姓名： | 王济 张浩 曾希柏 白玲玉 |
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| 作者单位： | 中国农业科学院农业环境与可持续发展研究所,北京,100081;贵州师范大学地理与环境科学学院,贵州,贵阳,550001;贵州师范大学地理与环境科学学院,贵州,贵阳,550001;中国农业科学院农业环境与可持续发展研究所,北京,100081 |
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| 基金项目： | 国家 十一五科技支撑计划项目,贵州省科技基金项目,贵州省教育厅自然科学研究项目 |
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| 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.
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| 关 键 词： | 城市土壤 基线 重金属污染 地积累指数 |
| 收稿时间： | 2008-12-14 |
| 修稿时间： | 2009-01-21 |
Distribution and Pollution Assessment of Heavy Metals in Roadside Soil of Guiyang City,China |
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| WANG Ji,ZHANG Hao,ZENG Xi-bai and BAI Ling-yu. Distribution and Pollution Assessment of Heavy Metals in Roadside Soil of Guiyang City,China[J]. Research of Environmental Sciences, 2009, 22(8): 950-955 |
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| Authors: | WANG Ji ZHANG Hao ZENG Xi-bai BAI Ling-yu |
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| Affiliation: | 1.Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China;School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China2.School of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China3.Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China |
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| Abstract: | 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 b... |
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| Keywords: | urban soil baseline heavy metal pollution index of geo-accumulation |
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