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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The growth inhibition of algae was determined using a validated QSAR for the Mode of Action in question (MOA 1, non-polar narcosis).

The toxicity to algae of dimethyloctadiene has been investigated using a QSAR model that predicts growth rate inhibition of algae in an OECD 201 study. dimethyloctadiene falls within the applicability domain of the model as demonstrated in the QPRF.

72h-ErC50 for dimethyloctadiene = 0.12 mg test item/L based on growth rate inhibition with 95%-Confidence Limit of 0.06 - 0.25 mg test item/L. 


Key value for chemical safety assessment

EC50 for freshwater algae:
0.12 mg/L

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