| 上海郊区小城镇街道灰尘理化性质及重金属时空分布特征 |
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| 引用本文： | 张菊,邓焕广,王东启,陈振楼,许世远,姚春霞.上海郊区小城镇街道灰尘理化性质及重金属时空分布特征[J].长江流域资源与环境,2011,20(6):705-710. |
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| 作者姓名： | 张菊 邓焕广 王东启 陈振楼 许世远 姚春霞 |
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| 作者单位： | （1.聊城大学环境与规划学院,山东 聊城 252000；2.华东师范大学资源与环境科学学院,上海 200062；3.上海市农业科学院农产品质量标准与检测技术研究所,上海 201201 |
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| 基金项目： | 国家自然科学基金项目(40903049,40772209,41072258); 山东省自然科学基金(ZR2010DL007); 聊城大学科研基金(X09043) |
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| 摘 要： | 为了解上海郊区不同类型小城镇街道灰尘的基本理化性质和重金属的时空分布特征，分别于2003年7月（夏季）和2004年4月（春季）在枫泾镇、松江新城和朱家角镇采集街道灰尘样品共计90个，分析了样品的pH、粒度、有机质和重金属的含量。结果表明：3个小城镇街道灰尘的理化性质和重金属时空分布特征具有较好的一致性，pH值为841~1137，呈碱性；有机质的平均含量为3413 g/kg；粒度主要呈单峰和双峰分布特征，粒径平均值为1736 μm，以砂粒为主。各重金属的平均含量均高于上海市土壤环境背景值。Cr和Ni含量夏季高于春季，但区域分异不显著。城镇中心区域和镇级公路Cd、Cu、Pb和Zn含量明显大于乡村。Cr Ni，Cu Pb Zn，Fe Mn之间具有极显著的相关性，有机质是街道灰尘重金属的重要载体
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| 关 键 词： | 街道灰尘 理化性质 重金属 时空分布 |
TEMPORAL AND SPATIAL DISTRIBUTION OF PHYSICAL-CHEMICAL PROPERTIES AND HEAVY METALS IN STREET DUST OF SHANGHAI SUBURBAN SMALL TOWNS |
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| ZHANG Ju,DENG Huan-guang,WANG Dong-qi,CHEN Zhen-lou,XU Shi-yuan,YAO Chun-xia.TEMPORAL AND SPATIAL DISTRIBUTION OF PHYSICAL-CHEMICAL PROPERTIES AND HEAVY METALS IN STREET DUST OF SHANGHAI SUBURBAN SMALL TOWNS[J].Resources and Environment in the Yangtza Basin,2011,20(6):705-710. |
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| Authors: | ZHANG Ju DENG Huan-guang WANG Dong-qi CHEN Zhen-lou XU Shi-yuan YAO Chun-xia |
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| Institution: | (1.School of Environment and Planning,Liaocheng University,Liaocheng 252059,China;2.Key Laboratory of Geographic Information Science of Ministry of Education,East China Normal University,Shanghai 200062,China;3.Institute for Agro product Quality Standards and Testing Technologies,Shanghai Academy of Agricultural Science,Shanghai 201106,China |
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| Abstract: | Heavy metal concentrations and basic properties including pH values,particle size and content of organic matter were analyzed in a total of 90 street dust samples collected in July,2003 and April,2004 from three small towns in Shanghai suburban area.The results showed that the three different small towns presented similar temporal and spatial distribution characteristic for pH,particle size and organic matter as well as heavy metals.The pH values of the street dust were 8.41~11.37,which assume alkaline.The ... |
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| Keywords: | street dust physical-chemical properties heavy metals temporal and spatial distribution |
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