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Environmental Monitoring and Assessment

, Volume 123, Issue 1–3, pp 351–370 | Cite as

The Status of Pesticide Residues in the Drinking Water Sources in Meiliangwan Bay, Taihu Lake of China

  • Ta Na
  • Zhou Fang
  • Gao Zhanqi
  • Zhong Ming
  • Sun Cheng
Article

Abstract

The study was carried out to assess the levels of pesticide residues in the water of Meiliangwan Bay, Taihu Lake of China. The most commonly employed organochlorine pesticides (OCPs), organophosphorus pesticides (OPPs) and herbicide atrazine were analyzed. The water samples were collected seasonally from Meiliangwan Bay within a period of one year. The pesticides were analyzed by gas chromatography (GC) with μECD or NPD after solid-phase extraction (SPE), which was confirmed by GC with an ion trap mass spectrometry (MS). The mean concentrations were 1.98 ng/l for lindane, 0.378 ng/l for heptachlor epoxide, 0.367 ng/l for p,p′-DDE, 0.496 ng/l for p,p′-DDD, 1.06 ng/l for p,p′-DDT and 51.6 ng/l for dichlorvos, 39.0 ng/l for demeton, 346 ng/l for dimethoate, 4.12 ng/l for methyl parathion, 11.6 ng/l for malathion, 2.17 ng/l for parathion and 217 ng/l for atrazine. Generally, low concentrations of OCP were found, whereas the concentrations of the OPPs and atrazine in the water of Taihu Lake were relatively high. Heptachlor epoxide and lindane were the two most commonly encountered OCPs while dichlorvos, demeton and dimethoate were found to have much higher concentrations and occurrences than other OPPs.

Keywords

Taihu Lake pesticide solid phase extraction gas chromatography-mass spectrometry drinking water sources 

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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • Ta Na
    • 1
  • Zhou Fang
    • 1
  • Gao Zhanqi
    • 1
  • Zhong Ming
    • 1
  • Sun Cheng
    • 1
  1. 1.State Key Laboratory of Pollution Control and Resouce Reuse, School of EnvironmentNanjing UniversityNanjingChina

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