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ECB-ART-49599
Environ Toxicol Chem 2020 Dec 01;3912:2540-2551. doi: 10.1002/etc.4880.
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Deriving a Chronic Guideline Value for Nickel in Tropical and Temperate Marine Waters.

Gissi F , Wang Z , Batley GE , Leung KMY , Schlekat CE , Garman ER , Stauber JL .


Abstract
The absence of chronic toxicity data for tropical marine waters has limited our ability to derive appropriate water quality guideline values for metals in tropical regions. To aid environmental management, temperate data are usually extrapolated to other climatic (e.g., tropical) regions. However, differences in climate, water chemistry, and endemic biota between temperate and tropical systems make such extrapolations uncertain. Chronic nickel (Ni) toxicity data were compiled for temperate (24 species) and tropical (16 species) marine biota and their sensitivities to Ni compared. Concentrations to cause a 10% effect for temperate biota ranged from 2.9 to 20 300 µg Ni/L, with sea urchin larval development being the most sensitive endpoint. Values for tropical data ranged from 5.5 to 3700 µg Ni/L, with copepod early-life stage development being the most sensitive test. There was little difference in temperate and tropical marine sensitivities to Ni, with 5% hazardous concentrations (95% confidence interval) of 4.4 (1.8-17), 9.6 (1.7-26), and 5.8 (2.8-15) µg Ni/L for temperate, tropical, and combined temperate and tropical species, respectively. To ensure greater taxonomic coverage and based on guidance provided in Australia and New Zealand, it is recommended that the combined data set be used as the basis to generate a jurisdiction-specific water quality guideline of 6 µg Ni/L for 95% species protection applicable to both temperate and tropical marine environments. Environ Toxicol Chem 2020;39:2540-2551. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

PubMed ID: 32955772
PMC ID: PMC7756218
Article link: Environ Toxicol Chem
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References [+] :
Alquezar, The use of the cyanobacteria, Cyanobium sp., as a suitable organism for toxicity testing by flow cytometry. 2013, Pubmed