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有机氯农药在海河干流水体和菹草中的浓度分布

迟 杰

迟 杰. 有机氯农药在海河干流水体和菹草中的浓度分布[J]. 环境科学研究, 2009, 22(9): 1008-1012.
引用本文: 迟 杰. 有机氯农药在海河干流水体和菹草中的浓度分布[J]. 环境科学研究, 2009, 22(9): 1008-1012.
CHI Jie. Distribution of Organochlorine Pesticides in Water and Potamogeton crispus L. from the Haihe River[J]. Research of Environmental Sciences, 2009, 22(9): 1008-1012.
Citation: CHI Jie. Distribution of Organochlorine Pesticides in Water and Potamogeton crispus L. from the Haihe River[J]. Research of Environmental Sciences, 2009, 22(9): 1008-1012.

有机氯农药在海河干流水体和菹草中的浓度分布

基金项目: 国家自然科学基金项目(20677042,20777052)

Distribution of Organochlorine Pesticides in Water and Potamogeton crispus L. from the Haihe River

  • 摘要: 于2008年3月29日—5月25日对海河干流水体和菹草中的有机氯农药(OCPs)——六六六(HCHs)和滴滴涕(DDTs)的分布进行了采样调查. 结果表明,水体中ρ(HCHs)和ρ(DDTs)分别为3.95~20.15和6.88~35.23 ng/L,平均值为11.11和15.34 ng/L;菹草中w(HCHs)和w(DDTs)分别为2.17~7.82和1.40~22.80 ng/g,平均值分别为4.49和7.79 ng/g,菹草生长旺盛期的w(HCHs)和w(DDTs)最高,其变化主要受水体中ρ(HCHs)和ρ(DDTs)的影响;菹草生长旺盛期HCHs和DDTs的PCF值最高;菹草中HCHs的主要成分为γ-HCH,而水体中为β-HCH;DDT是水体和菹草中DDTs的主要成分,但菹草中DDT的相对含量明显低于水体,与水体相比,DDT在菹草中能进一步被降解,且以好氧降解为主.

     

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出版历程
  • 收稿日期:  2008-12-25
  • 修回日期:  2009-02-03
  • 刊出日期:  2009-09-25

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