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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Link to relevant study record(s)

Description of key information

A reliable, nominal 48h-EC50 of 14.5 mg Ba/L has been reported by Biesinger and Christensen (1972), using Daphnia magna as test organism.   

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
22 mg/L

Additional information

The reported 48h-EC50of 14.5 mg Ba2+/L by Biesinger and Christensen (1972) for Daphnia magna is based on nominal test concentrations, using the soluble BaCl2* 2H2O as test substance. The followed test procedure in this 1972 -study was well described and test conditions (e.g., test medium composition) were properly identified. Re-calculation of 14.5 mg Ba2+/L to BaCl2results in 22 mg BaCl2/L.

No reliable data were identified for the marine compartment.