上海市城区土壤中有机氯农药残留研究
Residues of Organochlorine Pesticides in Urban Soil of Shanghai
查看参考文献27篇
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文摘
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2007年3月采用网格布点法采集55个上海市城区表层土壤样品,采用气相色谱法对土壤中的有机氯农药(OCPs)残留进行了分析,揭示了上海城区土壤中有机氯农药的残留水平、分布及来源.结果表明,试区土壤中六六六(HCHs)、滴滴涕 (DDTs)和六氯苯均有较高的检出率,在95% ~100%之间,残留含量范围分别为nd~38.58μg.kg~(-1)、1.81~79.61μg.kg~(-1)和0.16~40.25μg.kg~(-1).研究区域内土壤有机氯农药总残留范围在3.12~91.07μg.kg~(-1),平均值为22.33μg.kg~(-1).OCPs主要残留物为p, p′-DDE,占残留总量的60%以上.有机氯农药残留相对较高的采样点分布在公园及绿化带.有机氯农药组成特征表明土壤中有机氯农药残留主要来源于历史使用.与国内同类研究相比较,试区土壤中有机氯农药的残留较低;与国外比较,试区土壤中有机氯农药残留量明显低于德国、阿根廷和波兰土壤中有机氯农药的残留水平 |
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其他语种文摘
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The 55 soil samples were collected from Shanghai urban areas in March 2007. The residues and distribution characteristics of organochlorine pesticides (OCPs) in the soil samples were investigated with gas chromatography. The results showed that HCHs, DDTs, and HCB were in the ranges of nd-38. 58 μg. kg~(-1), 1. 81-79. 61 μg. kg~(-1) and 0. 1640.25 μg. kg~(-1), respectively. The total OCPs concentrations in urban soil of Shanghai ranged from 3. 12 μg. kg~(-1) to 91. 07 μg. kg~(-1) with a mean of 22. 33 μg. kg~(-1), and the p, p'-DDE took over 60% of the total OCPs. The main contaminated areas were distributed in the park and greenbelts. The composition of OCPs indicated that OCPs in soil samples mainly came from historical application. Compared to the reference data, the pollution burden in soil of Shanghai was lower than those in other areas of China and in German, Argentina and Poland |
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来源
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环境科学
,2010,31(2):409-414 【核心库】
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关键词
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土壤
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有机氯农药
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滴滴涕
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六六六
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六氯苯
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地址
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上海大学环境与化学工程学院环境污染与健康研究所, 上海, 200444
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环境保护部斯德哥尔摩公约履约办公室, 北京, 100044
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0250-3301 |
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学科
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环境污染及其防治 |
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基金
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国家自然科学基金重点项目
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国家科技支撑计划项目
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上海市重点学科建设项目
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文献收藏号
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CSCD:3933874
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