Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Reliable results from short-term toxicity tests are available for freshwater fish (Oryzias latipes), invertebrates (Daphnia magna), and algae (Selenastrum capricornutum, new namePseudokirchneriella subcapitata). The 96-hr LC50 for the one reliable study for freshwater fish was determined to be > 66.6 mg/L based on the geometric mean of measured test concentrations. The key study on invertebrates determined an EC50value of 23.1 mg/L and NOEC of 17.4 mg/L, based on geometric mean of measured concentrations. The key study on algae determined an EC50value of 152 mg/L and NOEC of 224 mg/L, based on measured initial concentrations. 


A longer-term reproduction test (21-day) with invertebrates (Daphnia magna) determined an LC50value of 13.4 mg/L, NOEC of 4.94 mg/L and LOEC of 12.0 mg/L, based on time-weighted mean measured concentrations. 


Although results should be interpreted with caution because the test substance concentration was not maintained above 80% of the initial concentration, results are considered reliable because they are based on measured concentrations.