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Spatial and seasonal variation of polychlorinated biphenyls in Songhua River, China

机译:松花江多氯联苯的时空变化

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摘要

The spatial and seasonal variation of polychlorinated biphenyls (PCBs) were investigated in water and sediment samples collected from Songhua River, China, from 2007 to 2008. The total concentration of PCB congeners ranged from 1.1 to 14 ng/1 in water and 0.26-9.7 ng/g dry weight (dw) in sediment. The results of seasonal variation may suggest an impact to PCB concentration in water from its atmospheric input, the dilution to PCBs concentrations of high stream in summer, and a general trend towards increased volatilization in warmer conditions. From PCBs concentrations comparison between upstream and downstream of industrial urban cities, it was obvious that industrial urban cities reflect an important pollutant source for PCBs in our study, also with the evidences of high concentrations of PCBs occurring in high development industry and residential areas. Meanwhile, the homologue profile of PCBs in Songhua was analyzed, whose comparison with published data indicates that the sources of PCBs accumulated in the sediment may also came from the residue of PCBs production in China. Total five dioxin-like PCBs (CB-77, 81, 105, 114, and 126) and nine (CB-77, 81, 105, 114, 118, 123, 126, 156, and 167) were found in Songhua water and sediment.
机译:研究了2007年至2008年从中国松花江采集的水和沉积物样本中的多氯联苯(PCBs)的时空变化。PCB同类物的总浓度在水中为1.1至14 ng / 1,范围为0.26-9.7 ng / g沉积物中的干重(dw)。季节变化的结果可能表明,其大气输入会影响水中的PCB浓度,夏季会稀释至高流量的PCBs浓度,并且在温暖的条件下总体趋势是挥发增加。从工业城市上游和下游的多氯联苯浓度比较来看,很明显,在我们的研究中,工业城市反映出多氯联苯的重要污染源,而且有证据表明在高发展工业和居民区中存在多氯联苯的高浓度。同时,对松花市多氯联苯的同源性进行了分析,并将其与已发表的数据进行比较,表明沉积物中积累的多氯联苯的来源也可能来自中国多氯联苯生产的残留物。在松花江水域共发现5种二恶英样PCB(CB-77、81、105、114和126)和9种(CB-77、81、105、114、118、123、126、156和167)。沉淀。

著录项

  • 来源
    《Environmental Geochemistry and Health》 |2011年第3期|p.291-299|共9页
  • 作者单位

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China,National Engineering Research Center of Urban Water Resources, 150090 Harbin, China;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China,Science and Technology Branch, Environment Canada, Toronto, ON M3H5T4, Canada;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China;

    State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PCBs; water; sediment; songhua; China;

    机译:PCB;水;沉淀;松花中国;
  • 入库时间 2022-08-17 13:28:20

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