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Probabilistic ecological risk assessment of heavy metals using the sensitivity of resident organisms in four Korean rivers

机译：利用韩国四大河流中居民生物体的敏感性进行重金属的概率生态风险评估

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摘要

The environment has been continuously exposed to heavy metals by various routes, from both natural and artificial sources. In particular, heavy metals in water can affect aquatic organisms adversely, even at very low concentrations, and can lead to the disturbance of the ecosystem balance and biodiversity. Ecological risk assessments are conducted to protect the environment from such situations, primarily by deriving the predicted no effect concentration (PNEC) from the species sensitivity distribution (SSD). This study developed the SSDs based on the species living in Korean freshwater for four heavy metals including cadmium (Cd), copper (Cu), lead (Pb), and zinc (Zn). The species compositions of the SSDs were examined, and three types of PNECs were derived by applying different assessment factors (AF). In addition, the occurrence and concentrations of heavy metals in Korean rivers were investigated, and the ecological risk assessment was carried out to compare the SSDs with the environmental concentrations. The SSDs were developed using a sufficient number of species, but the missing data of plants and insects provided an incomplete species composition. The results show that Cd and Pb in the environmental concentrations of rivers would not cause any risk to aquatic organisms from the derived PNEC. However, some organisms might be adversely affected by the concentrations of Zn, and a small amount of risk was expected under the conservative PNEC. The distribution of Cu in the rivers was not considered to be safe for aquatic organisms because the average environmental concentrations potentially affected the proportion of the SSD, and the environmental concentrations exceeded the PNECs. The concentrations of Cu and Zn in industrial waters indicated a considerable risk to aquatic organisms, and the probability of exceeding the PNECs appeared to be quite high. Therefore, this study indicates that additional actions and parallel field studies are required based on the risk posed to aquatic organisms by Cu and Zn in four Korean rivers.
机译：环境通过自然和人工来源的各种途径不断暴露于重金属。特别是水中的重金属即使浓度很低也会对水生生物造成不利影响，并可能导致生态系统平衡和生物多样性受到干扰。进行生态风险评估以保护环境免受此类情况的侵害，主要是通过从物种敏感度分布（SSD）中得出预测的无效应浓度（PNEC）来进行的。这项研究基于生活在韩国淡水中的物种开发了SSD，该物种使用了四种重金属，包括镉（Cd），铜（Cu），铅（Pb）和锌（Zn）。检查了SSD的物种组成，并通过应用不同的评估因子（AF）得出了三种类型的PNEC。此外，调查了韩国河流中重金属的发生和浓度，并进行了生态风险评估，以比较SSD和环境浓度。使用足够数量的物种开发了SSD，但是缺少的植物和昆虫数据提供了不完整的物种组成。结果表明，河流环境浓度中的Cd和Pb不会对源自PNEC的水生生物造成任何风险。但是，某些生物可能会受到Zn浓度的不利影响，在保守的PNEC下，预计会有少量风险。认为河流中的铜分布对于水生生物不是安全的，因为平均环境浓度可能会影响SSD的比例，并且环境浓度超过了PNEC。工业水中铜和锌的浓度表明对水生生物有相当大的风险，超过PNEC的可能性似乎很高。因此，这项研究表明，根据韩国和韩国四大河流中铜和锌对水生生物造成的风险，需要采取其他行动和平行田间研究。

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  • 来源
    《Ecotoxicology and Environmental Safety》 |2019年第11期|109483.1-109483.10|共10页
  • 作者

    Park Jinhee; Lee Sunhong; Lee Eunhee; Noh Hyeran; Seo Yongchan; Lim HyunHee; Shin HoSang; Lee Injung; Jung Heejung; Na Taewoong; Kim Sang D.;

  • 作者单位

    Gwangju Inst Sci & Technol Sch Earth Sci & Environm Engn 123 Cheomdangwagi Ro Gwangju 61005 South Korea;

    K Water Convergence Inst Water Qual Res Ctr 200 Sintanjin Ro Daejeon 34350 South Korea;

    Sangji Univ Dept Environm Engn Wonju 26339 Gangwon Do South Korea;

    Natl Inst Environm Res Han River Environm Res Ctr 42 Dumulmeori Gil 68Beon Gil Yangpyeong Gun 12585 Gyeonggi Do South Korea;

    Kongju Natl Univ Drug Abuse Res Ctr 56 Gongjudaehak Ro Kongju Si 32588 Chungcheongnam South Korea;

    Kongju Natl Univ Dept Environm Educ 56 Gongjudaehak Ro Kongju Si 32588 Chungcheongnam South Korea;

    Natl Inst Environm Res Nakdong River Environm Res Ctr 24 Pyeongni 1 Gil Goryeong Gun 40103 Gyeongsangbuk D South Korea;

    Yeongsan River Environm Res Ctr 5 Cheomdangwagi Do 208 Beon Gil Gwangju 61011 South Korea;

  • 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

    Heavy metals; aquatic toxicity; probabilistic ecological risk assessment; species sensitivity distribution (SSD);

    机译：重金属;水生毒性概率生态风险评估;物种敏感度分布（SSD）;

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