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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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Description of key information

The concentration of test item causing 50% reduction in mobility (EC50) after 48h of exposure was estimated to be:
48h-EC50 = 308.4 µg/L (95% CI: 219.5 - 416.8 µg/L)

Key value for chemical safety assessment

EC50/LC50 for freshwater invertebrates:
308.4 µg/L

Additional information

The effects of the test item to Daphnia magna exposed for a duration of 48h were assessed according to the OECD 202 Guideline.

Daphnids were exposed to serial dilutions of a saturated stock solution of the test item prepared with slow-stirring conditions due to the characteristics of the substance.

The stability of the substance was not confirmed over the 48h test period (i.e. deviation > 20% between T0 and 48h measurements); geometric means of measured concentrations were thus used to determine EC50 (95% confidence level).