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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Short-term toxicity to fish:
LC50 (96 h): > 45 µg/L for Oncorhynchus kisutch
LC50 (14 d): > 45 µg/L for Lepomis macrochirus
LC50 (96 h): > 55 µg/L for Salmo gairdneri

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
45 µg/L

Additional information

Toxicity studies are waived because of high insolubility of anthraquinone in water.

There are three reliable acute toxicity studies for fish available, where selection of the test concentrations was based on the limit of water solubility of Anthraquinone in freshwater.

No significant mortalities or adverse effects were observed among fish at all treatment levels of Anthraquinone tested. Based on these data, it was established that under the conditions maintained during these studies (e.g., water quality, solution temperature, solvent concentration, mixing period) Anthraquinone is not acutely toxic to fish at the material's limit of water solubility.