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首页> 外文期刊>Atmospheric environment >Spatial and seasonal variations of atmospheric organochlorine pesticides along the plain-mountain transect in central China: Regional source vs. long-range transport and air-soil exchange
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Spatial and seasonal variations of atmospheric organochlorine pesticides along the plain-mountain transect in central China: Regional source vs. long-range transport and air-soil exchange

机译：中国中部平原山区样带大气中有机氯农药的时空变化：区域来源与远距离运输及空气-土壤交换

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摘要

Polyurethane foam (PUF) disk passive air samplers (PAS) were deployed to measure spatiality and seasonality of atmospheric OCPs in Jianghan Plain (JHP) and Western Hubei Mountain (WHM), to make a preliminary explorative study of the source sink relationship of organochlorine pesticides (OCPs) and their association with the monsoon. The concentrations of individual OCPs in the JHP were generally higher than those in the WHM. Significantly high levels of DDTs and Endosulfan were found in the spring and summer, HCB was found in autumn and winter, and HCHs displayed uniform distributions. Compared with the levels of 2005, a significant decrease of atmospheric HCHs, DDTs and HCB was observed, whereas an increase in Endosulfan was observed. The air soil equilibrium status of OCPs suggested that Dajiuhu (DJH) soils are likely to be a sink for OCPs, and JHP soils are acting as the emitter, contaminating the atmosphere at certain monitoring stations. Backward air trajectory analysis demonstrated that the seasonal fluctuation of atmospheric DDTs, HCB and Endosulfan at the DJH site were closely associated with the variations of the East Asian monsoon. (C) 2015 Elsevier Ltd. All rights reserved.
机译：部署了聚氨酯泡沫（PUF）盘式被动空气采样器（PAS）来测量江汉平原（JHP）和湖北西部山区（WHM）大气OCP的空间和季节性，从而对有机氯农药的源汇关系进行了初步的研究。 （OCP）及其与季风的关系。 JHP中单个OCP的浓度通常高于WHM中的浓度。在春季和夏季发现了大量的滴滴涕和硫丹，在秋季和冬季发现了六氯苯，六氯环己烷显示出均匀的分布。与2005年相比，大气中六氯环己烷，滴滴涕和六氯苯的含量显着下降，而硫丹则有所增加。 OCP的空气土壤平衡状态表明，Dajhhu（DJH）土壤很可能是OCP的汇，而JHP土壤充当了排放源，在某些监测站污染了大气。向后的空气轨迹分析表明，DJH站点的大气滴滴涕，六氯苯和硫丹的季节性波动与东亚季风的变化密切相关。 （C）2015 Elsevier Ltd.保留所有权利。

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  • 来源
    《Atmospheric environment》 |2015年第12期|31-40|共10页
  • 作者

    Qu Chengkai; Xing Xinli; Albanese Stefano; Doherty Angela; Huang Huanfang; Lima Annamaria; Qi Shihua; De Vivo Benedetto;

  • 作者单位

    China Univ Geosci, Sch Environm Studies, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China|Univ Naples Federico II, Dipartimento Sci Terra Ambiente & Risorse, I-80134 Naples, Italy;

    China Univ Geosci, Sch Environm Studies, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China|Univ Lancaster, Lancaster Environm Ctr, Lancaster LA1 4YQ, England;

    Univ Naples Federico II, Dipartimento Sci Terra Ambiente & Risorse, I-80134 Naples, Italy;

    Univ Naples Federico II, Dipartimento Sci Terra Ambiente & Risorse, I-80134 Naples, Italy;

    China Univ Geosci, Sch Environm Studies, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China;

    Univ Naples Federico II, Dipartimento Sci Terra Ambiente & Risorse, I-80134 Naples, Italy;

    China Univ Geosci, Sch Environm Studies, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China;

    Univ Naples Federico II, Dipartimento Sci Terra Ambiente & Risorse, I-80134 Naples, Italy;

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  • 正文语种 eng
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  • 关键词

    Organochlorine pesticides; Passive air sampling; Plain; Mountain; Air-soil exchange; East Asia monsoon;

    机译：有机氯农药;被动空气采样;平原;山脉;空气-土壤交换;东亚季风;

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