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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Read across is done from the study from Bazzon (2000) using zirconium dioxide as test substance. In this study no effects were observed in a limit test, yielding a 96-h LC50 of > 100 mg/L (ZrO2).

Key value for chemical safety assessment

Additional information

One study executed with zirconium dioxide, another insoluble zirconium compound, was identified as containing relevant and reliable information.

In this study (Bazzon, 2000), the toxicity of zirconium dioxide to zebra fish (Brachydanio rerio) was studied under static conditions, according to OECD Guideline 203. No mortality was observed during the test, neither in the control nor in the group exposed to the test item. The 96 hour LC50 was > 100 mg/L (ZrO2). This study result can be used for read across purposes to indicate that zirconium basic sulfate is not toxic to fish either at equivalent doses.