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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Description of key information

Daphnia magna was exposed under semi-static conditions for 21 days to one concentration (1.0 mg/L) of 3-hydroxy-2-(3-hydroxy-2-quinolyl)-1H-inden-1-one. No toxic effects against daphnia were observed at the maximum of water solubility.

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Additional information

Based on different biological effects observed and endpoints assessed, the following results were obtained at the end of the 21 day exposure period of the Daphnia reproduction test:

A 21d-NOEC (reproduction) and a 21d-NOEC (mortality) of >0.070 mg/L;

a 21d-LOEC (reproduction) and a 21d-LOEC (mortality) of >0.070 mg/L.

First brood was on day 6.

No toxic effects against daphnia were observed at the maximum of water solubility under exposure conditions.