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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The key study of Goodband and Mullee (2010) exposed Daphnia magna for 48 h to 100 mg/L zirconium basic carbonate in a limit test and reported a 48h EC50 > 100 mg/L (nominal) in Daphnia magna (OECD TG 202/ EU method C.2).

Key value for chemical safety assessment

Additional information

In a Klimisch 1 study conducted according to OECD TG 202 / EU method C.2 (Goodband and Mullee, 2010), a saturated solution of zirconium basic carbonate (nominal 100 mg/L) did not induce any immobilisation of Daphnia magna after 48 hours exposure. The EC50 is > 100 mg/L.

In conclusion, at environmentally relevant pH values, zirconium basic carbonate will not cause acute adverse effects to daphnids.