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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The EC50 (72 h) of 10.52 mg/L was calculated based on growth rate data of the green algae Desmodesmus subspicatus. The NOEC was 2.50 mg/L and the EC10 was determined to be 3.68 mg/L.

Key value for chemical safety assessment

EC50 for freshwater algae:
10.52 mg/L
EC10 or NOEC for freshwater algae:
2.5 mg/L

Additional information

Growth inhibition of green algae was investigated following OECD Guideline 201 (2006) and in compliance with GLP regulations. The mode of action of triazine herbizieds is not applicable for TAC.