Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

The environmental hazard assessment for (fresh-) water organisms and sediment habitats is supported by several acute studies (pelagic compartment) and by using scientific argumentation (sediment dwelling organisms).

For the environmental hazard assessment of the registered substance acute toxicity studies for freshwater fish, acute and chronic data are available for daphnids and freshwater algae from a read across substance. Furthermore STP microorganisms are available for a read across substance. Long-term studies for fish are waived. Experimental information about toxicity on marine organisms is not available.

The short-term EC50/LC50 values for fish, Daphnia, algae and microorganisms were 1.96,4.9, > 100 and 14 mg/L, respectively. Chronic data for daphnids and algae are 0.15 and 8.7 mg/L, respectively.

Fish are the most sensitive trophic level with an acute LC50 of 1.96 mg/L. For daphnids a chronic EC10 of 0.15 mg/L was obtained. This value will be used as worst case scenario for the risk assessment of aquatic organisms.