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首页> 外文期刊>Journal of Environmental Science and Health >Deriving the aquatic predicted no-effect concentrations (PNECs) of three chlorophenols for the Taihu Lake, China
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Deriving the aquatic predicted no-effect concentrations (PNECs) of three chlorophenols for the Taihu Lake, China

机译：推导中国太湖地区三种氯酚的水生无效应预测浓度（PNEC）

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摘要

The Predicted No-Effect Concentration (PNEC) is a key for ecological risk assessment. In this paper, the aquatic species existing widely in the Taihu Lake were selected, and their toxicity data to 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP) and pentachlorophenol (PCP) were collected. The PNECs of 2,4-DCP; 2,4,6-TCP; and PCP were derived using three different approaches, i.e., the assessment factor (AF), species sensitivity distribution (SSD) as well as an eco-toxicological model (AQUATOX). As the results, PNEC_(af)s were 2.18 μg L~(-1), 2.53 μg L~(-1) and 0.26 μg L~(-1), and PNEC_(ssd)s were 77 μg L~(-1), 197 μg L~(-1) and 10 μg L~(-1), respectively for 2,4-DCP; 2,4,6-TCP; and PCP respectively. Based on the aquatic conditions of the Taihu Lake, the derived site-specific PNECaquatoxs were 15 μg L~(-1), 67 μg L~(-1) and 4 μg L~(-1), respectively. In general, the PNECs for three chlorophenols derived from different approaches followed the declined order of PNEC_(ssd) > PNEC_(Aquatox) > PNE_(af). The ratios of PNEC_(af) to PNEC_(ssd) and PNEC_(Aquatox) to PNEC_(ssd) for three chlorophenols were 0.013-0.028 and 0.19-0.4, respectively. It indicated that PNECs obtained using different approaches may vary and the one based on the AF was the lowest. Therefore, PNEC_(af) can be seen as overprotective. The PNEC_(aquatox) values for three chlorophenols were less than the corresponding PNEC_(SSd) values, mostly because the indirect effects were considered in the ecological model.
机译：预计无影响浓度（PNEC）是生态风险评估的关键。本文选择了太湖地区广泛存在的水生物种，并对2,4-二氯苯酚（2,4-DCP），2,4,6-三氯苯酚（2,4,6-TCP）的毒性数据进行了筛选。收集五氯苯酚（PCP）。 2,4-DCP的PNEC； 2,4,6-TCP; PPC和PCP分别使用三种不同的方法得出，即评估因子（AF），物种敏感性分布（SSD）以及生态毒理学模型（AQUATOX）。结果，PNEC_（af）s为2.18μgL〜（-1），2.53μgL〜（-1）和0.26μgL〜（-1），PNEC_（ssd）s为77μgL〜（- 1），对于2,4-DCP分别为197μgL〜（-1）和10μgL〜（-1）; 2,4,6-TCP;和PCP分别。根据太湖的水质状况，推导的位点特异性PNECaquatoxs分别为15μgL〜（-1），67μgL〜（-1）和4μgL〜（-1）。通常，源自不同方法的三种氯酚的PNEC遵循PNEC_（ssd）> PNEC_（Aquatox）> PNE_（af）的降序。三种氯酚的PNEC_（af）与PNEC_（ssd）以及PNEC_（Aquatox）与PNEC_（ssd）之比分别为0.013-0.028和0.19-0.4。这表明使用不同方法获得的PNEC可能有所不同，而基于AF的PNEC最低。因此，PNEC_（af）可以被视为过度保护。三个氯酚的PNEC_（aquatox）值小于相应的PNEC_（SSd）值，这主要是因为在生态模型中考虑了间接影响。

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  • 来源
    《Journal of Environmental Science and Health》 |2010年第14期|p.1823-1831|共9页
  • 作者

    BING L. LEI; SHENG B. HUANG; XIAO W. JIN; ZIJIAN WANG;

  • 作者单位

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China,Institute of Environmental Pollution and Health, College of Environmental and Chemical Engineering, Shanghai University, Shanghai, China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China;

    State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China;

    Institute of Environmental Pollution and Health, College of Environmental and Chemical Engineering, Shanghai University, Shanghai, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);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

    chlorophenols; predicted no-effect concentration (PNEC); assessment factor; species sensitivity distribution; eco-toxicological model; taihu lake;

    机译：氯酚;预测无效应浓度（PNEC）;评估因素;物种敏感性分布;生态毒理学模型太湖;

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