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, daphnids, freshwater algae and STP microorganisms are available. In addition, a long-term study for daphnids is available. A long-term study for fish is waived. Experimental information about toxicity on marine organisms is not available.

The short-term EC50/LC50 values for fish, Daphnia, algae and microorganisms were 0.88, 2.4, > 93 and >650 mg/L, respectively, The long-term values for daphnia (21 -d EC10 reproduction) was 0.15 mg/L and algae (72 -h ErC10) was 7 .8 mg/L.

The fish were the most sensitive trophic level with an acute LC50 of 0.88 mg /L. The lowest long-term value was obtained from Daphinds, i.e., 0.15 mg/L. This value will be used as worst case scenario for the risk assessment of aquatic organisms.