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Levels of organochlorine pesticides in natural water along the Yangtze River, from headstream to estuary, and factors determining these levels

机译:从上游到河口,长江沿岸天然水中有机氯农药的含量,以及决定这些含量的因素

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摘要

Organochlorine pesticides (OCPs), including hexachlorocyclohexane and dichlorodiphenyltrichloroethane, were monitored in 37 samples of water collected along the Yangtze River, the third longest river in the world (6,300 km). The total concentration of OCPs (∑OCPs) in the river water ranged from 0.11 to 27.37 ng/L. It was interesting to discover that, except for some sites near industrial cities, levels of OCPs in the water samples were very similar along the whole river. Significantly, OCPs were detected in Tuotuo River (the origin of Yangtze River) even though OCPs have never been used in this area because of its 4,540 m height above sea level. Furthermore, it was found that ∑OCPs was related to temperature and altitude along the river. We assume OCPs are transported along the Yangtze River, and the factors affecting this process are discussed.
机译:在世界第三长河(6,300公里)沿长江采集的37个水样中,监测了六氯环己烷和二氯二苯基三氯乙烷等有机氯农药(OCP)。河流水中的OCPs(∑OCPs)的总浓度为0.11至27.37 ng / L。有趣的是,除了工业城市附近的某些地点外,整个河流中水样中的OCP含量非常相似。值得注意的是,即使在该地区因海拔4540 m而从未使用过OCP,但仍在Tu河(长江源头)中检测到OCP。此外,还发现∑OCPs与沿河的温度和高度有关。我们假设OCPs沿长江运输,并讨论了影响这一过程的因素。

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  • 来源
    《Environmental Geology》 |2011年第5期|p.953-960|共8页
  • 作者单位

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

    School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    organochlorine pesticides; yangtze river; controlling factors; water residues;

    机译:有机氯农药;扬子江;控制因素;残留水;

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