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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
100 mg/L

Additional information

Two reliable GLP-conform studies (Klimisch 1) according to the OECD 202 guideline are available for the acute toxicity of Bi subnitrate and Bi metal to Daphnia magna. Egeler et al. (2010) studied the effect of the water accommodated fraction of bismuth subnitrate (Bi5O(OH)9(NO3)4) after seven days equilibration on the immobility of Daphnia magna. A limit test did not show any immobilisation or behavioural abnormalities in the control and the water-accommodated fraction at a loading rate of 100 mg Bismuth/L (137 mg test item/L). The EC50 (48 h) was therefore determined to be higher than 100 mg Bi/L. The measured dissolved Bi concentration was in all treatments below the limit of detection (0.0375 mg Bi/L). In a second limit test, also no effect of Bi metal was found on mobility of Daphnia magna (Neven, 1995) at 100 mg Bi/L (measured dissolved concentration is concentration is <0.05 mg Bi/L).

No data are available for the short-term toxicity of bismuth to marine invertebrates.