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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

Lanthanum oxide did not affect survival and reproduction of daphnia magna in a 21-day guideline study up to the solubility limit at a loading rate of 100 mg/L.

Key value for chemical safety assessment

Additional information

Both lanthanum oxide and cerium dioxide did not show any effects on survival or reproduction in guideline studies according to OECD 211 and GLP up to the solubility limit under semistatic conditions at loading rates of 100 mg/L.