Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Acute toxicity studies have been conducted in fish, daphnia and algae. In summary, for the aquatic compartment propylene glycol methyl ether shows EC50s/LC50s that exceed 1000 mg/l in daphnia (48 hr), fish (96 hours) and algae (7 days). An activated sludge respiration inhibition test showed an EC50 greater than 1000 mg/l for micro-organisms.

Propylene glycol methyl ether is classified as readily biodegradable. The risk assessment shows that the PEC/PNEC ratio is clearly < 1 in surface water, indicating no need for further information or testing. According to REACH Annex IX requirements, long-term toxicity testing shall only be considered when the chemical safety assessment indicates the need for further investigations. Hence, long-term testing in aquatic species (fish and daphnia magna) can be waived for propylene glycol methyl ether.