Estimating safe concentrations of trace metals from inter-continental field data on river macroinvertebrates

被引：44

作者：

Iwasaki, Yuichi ^{[1
]}

Ormerod, Steve J. ^{[2
]}

机构：

[1] Tokyo Inst Technol, Dept Civil Engn, Meguro Ku, Tokyo 1528552, Japan

[2] Cardiff Univ, Cardiff Sch Biosci, Catchment Res Grp, Cardiff CF10 1AX, Wales

来源：

ENVIRONMENTAL POLLUTION | 2012年 / 166卷

基金：

日本科学技术振兴机构; 日本学术振兴会;

关键词：

Ecological risk assessment; Ecotoxicology; Water pollution; Ecological threshold; Benthic macroinvertebrates; Species sensitivity distribution; HEAVY-METALS; BENTHIC COMMUNITIES; QUANTILE REGRESSION; WATER; STREAMS; BIOASSESSMENT; BRYOPHYTES; MODEL;

D O I：

10.1016/j.envpol.2012.03.028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We derived safe concentrations (SCs) of copper, zinc, cadmium, and manganese using river macroinvertebrate surveys at over 400 individual sites on three continents represented by the UK. USA, and Japan. We related a standardized measure of Eli' (Ephemeroptera, Plecoptera, and Trichoptera) taxon richness to dissolved metal concentrations and identified SCs as the thresholds at which effects became apparent. Estimated SCs (and 95% confidence interval, mu g/L) for copper, zinc, cadmium, and manganese were 6.6 (1.2-14.2), 34 (11-307), 0.11 (0.06-0.49), and 7.1 (1.4-20.5), respectively. These values for copper, zinc, and cadmium overlapped closely with laboratory-derived SCs available from water quality criteria/standards in the USA/UK and also predicted no effect concentrations from European Union risk assessments. Such laboratory-derived SCs for manganese are unavailable. These results not only add considerable confidence to the application of existing metal standards, but illustrate also how standard values might be widely transportable geographically. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：182 / 186

页数：5

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