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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

The substance exhibits an ErC50 for freshwater algae of 160 mg/L and a NOEC (growth rate) of 45 mg/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
160 mg/L
EC10 or NOEC for freshwater algae:
45 mg/L

Additional information

One reliable study is available for the registered substance. The toxicity to freshwater algae was studied according to OECD TG No. 201 and GLP. Cultures of Scenedesmus subspicatus were exposed to substance at nominal test concentrations of 25, 45, 81, 146, 262 mg/L over a test period of 72 hours (static test). The validity criteria were fulfilled. The ErC50 is determined to 160 mg/L, the NOEC (growth rate) is determined to 45 mg/L.