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首页> 外文期刊>The Science of the Total Environment >Background air levels of polychlorinated biphenyls in China
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Background air levels of polychlorinated biphenyls in China

机译：中国多氯联苯的背景空气水平

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摘要

Measurements of the atmospheric concentrations of polychlorinated biphenyls (PCBs) were taken in 11 background sites geographically distributed throughout China. Active high-volume samplers were employed during two deployment periods between November 2007 and November 2008.12 dioxin-like and 7 indicator PCBs were identified and measured. To keep the consistency, the two sampling periods were set in the same seasons (autumn and winter) and there were few variations between the results at all sites. The congener profile of indicator PCBs was dominated by CB28 and CB52. The most abundant mono-ort/io congener was CB118, and the most abundant non-ortho congener was CB77. This study is the first systematic investigation into background atmospheric PCB levels in China. The background indicator ∑_7PCB levels in China are similar to those obtained at other background areas around the world.
机译：大气中多氯联苯（PCB）的浓度测量是在11个背景地理区域中进行的，分布在中国各地。在2007年11月至2008年11月的两个部署阶段中，使用了活跃的大容量采样器。确定并测量了12种二恶英样和7种指示剂PCB。为了保持一致性，将两个采样周期设置在相同的季节（秋季和冬季），并且所有站点的结果之间几乎没有差异。指示器PCB的同类材料主要由CB28和CB52决定。最丰富的mono-ort / io同系物是CB118，最丰富的非邻位同类物是CB77。这项研究是对中国背景大气中多氯联苯含量的首次系统调查。中国的背景指标∑_7PCB水平与世界其他地区的背景指标相似。

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  • 来源
    《The Science of the Total Environment》 |2011年第10期|p.1818-1823|共6页
  • 作者

    Jiajia Wu; Man Teng; Lirong Gao; Minghui Zheng;

  • 作者单位

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China;

    State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    pcbs; background air; china;

    机译：印刷电路板;背景空气中国;

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