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| 万州道路灰尘重金属空间分布及污染评价 | |
| 引用本文： | 林俊杰,刘丹,方伟,付川,李廷真,来守军. 万州道路灰尘重金属空间分布及污染评价[J]. 环境科学与技术, 2011, 34(10): 89-92. DOI: 10.3969/j.issn.1003-6504.2011.10.020 |
| 作者姓名： | 林俊杰 刘丹 方伟 付川 李廷真 来守军 |
| 作者单位： | 1. 重庆三峡学院化学与环境工程学院,重庆,404100 2. 重庆三峡职业学院农业与生物工程系,重庆,404100 3. 重庆大学三峡库区生态环境教育部重点实验室,重庆,400045 4. 重庆三峡学院化学与环境工程学院,重庆404100;重庆大学三峡库区生态环境教育部重点实验室,重庆400045 |
| 基金项目： | 教育部春晖计划(Z2007-1-63007);重庆市“高校创新团队建设计划”资助项目;重庆三峡学院重点项目(10ZD-14) |
| 摘 要： | 运用ArcGIS的地统计分析模块,分析了三峡库区典型移民城市——万州老城区道路地表灰尘中重金属元素Cr、Cd、Cu、Ni、Mn的空间分布特征,并采用地积累指数法评价了道路灰尘中重金属的污染状况。结果表明:在空间分布上,Cr含量分布为:交通枢纽区>港口物流区>科教文化区;Cu和Ni含量分布为:科教文化区>交通枢纽区>港口物流区;Cd和Mn在交通枢纽区的含量均高于其他区域,并存在一定的复合污染。地积累指数计算结果表明:万州老城区Cd为重度污染,Cr、Cu为轻度污染,Ni、Mn未受污染。 |
| 关 键 词： | 三峡库区 地统计分析 空间分布 地积累指数法 |
Spatial Distribution and Pollution Assessment of Heavy Metal in Street Dust of Wanzhou |
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| LIN Jun-jie,LIU Dan,FANG Wei,FU Chuan,LI Ting-zhen,LAI Shou-jun. Spatial Distribution and Pollution Assessment of Heavy Metal in Street Dust of Wanzhou[J]. Environmental Science and Technology, 2011, 34(10): 89-92. DOI: 10.3969/j.issn.1003-6504.2011.10.020 | |
| Authors: | LIN Jun-jie LIU Dan FANG Wei FU Chuan LI Ting-zhen LAI Shou-jun |
| Affiliation: | 1(1.School of Chemical and Environment Engineering,Chongqing Three Gorges University,Chongqing 404100,China;2.Department of Agricultural and Biological Engineering,Chongqing ThreeGorges Vocation College,Chongqing 404100,China;3.Key Environmental and Ecological Laboratory of Three Gorges Area of Ministry of Education,Chongqing University,Chongqing 400045,China) |
| Abstract: | Spatial variation characteristics of urban dust heavy metal including Cr,Cd,Cu,Ni and Mn in Wanzhou urban area were studied by geostatistical component of ArcGIS.Geo-accumulation index method was used to assess heavy metal pollution.Results showed that Cr concentrations were in the decreasing order as transport hub area,port logistics zone,education and culture areas,while Cu and Ni distributions as education and culture areas,transport hub area,port logistics zone.Cd and Mn content in transport hub area were higher than that in the other areas,and certain complex pollution existed probably.Results of index of geoaccumulation indicated that the urban area was seriously polluted by Cd,followed by Cr and Cu,and unpolluted by Ni and Mn. |
| Keywords: | Three Gorges Reservoir area geostatistic analysis spatial distribution index of geoaccumulation |
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