ECIMAT, Universidade de Vigo, Illa de Toralla, E-36331 Coruxo, Galicia, Spain.
Sci Total Environ. 2013 Oct 1;463-464:446-53. doi: 10.1016/j.scitotenv.2013.05.077. Epub 2013 Jul 2.
Acute water quality criteria (WQC) for the protection of coastal ecosystems are developed on the basis of short-term ecotoxicological data using the most sensitive life stages of representative species from the main taxa of marine water column organisms. A probabilistic approach based on species sensitivity distribution (SSD) curves has been chosen and compared to the WQC obtained applying an assessment factor to the critical toxicity values, i.e. the 'deterministic' approach. The criteria obtained from HC5 values (5th percentile of the SSD) were 1.01 μg/l for Hg, 1.39 μg/l for Cu, 3.83 μg/l for Cd, 25.3 μg/l for Pb and 8.24 μg/l for Zn. Using sensitive early life stages and very sensitive endpoints allowed calculation of WQC for marine coastal ecosystems. These probabilistic WQC, intended to protect 95% of the species in 95% of the cases, were calculated on the basis of a limited ecotoxicological dataset, avoiding the use of large and uncertain assessment factors.
基于海洋水柱生物主要分类群中具有代表性物种的最敏感生活阶段的短期生态毒理学数据，制定了用于保护沿海生态系统的急性水质标准 (WQC)。选择了基于物种敏感性分布 (SSD) 曲线的概率方法，并将其与应用评估因子到临界毒性值的 WQC 进行了比较，即“确定性”方法。从 HC5 值（SSD 的第 5 个百分位数）得出的标准为 Hg 为 1.01μg/l，Cu 为 1.39μg/l，Cd 为 3.83μg/l，Pb 为 25.3μg/l，Zn 为 8.24μg/l。使用敏感的早期生活阶段和非常敏感的终点，可以计算出海洋沿海生态系统的 WQC。这些概率 WQC 旨在保护 95%的物种在 95%的情况下，是基于有限的生态毒理学数据集计算得出的，避免了使用大量不确定的评估因子。
