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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The substance is acutely harmful to algae.

Key value for chemical safety assessment

EC50/LC50 for freshwater algae:
87.4 mg/L
EC10, LC10 or NOEC for freshwater algae:
40.9 mg/L

Additional information

In a static study following OECD 201 with Desmodesmus subspicatus, the 72h ErC50 was determined to be 87.4 mg/L (ErC10 = 40.9 mg/L) based on nominal concentrations (BASF AG, 1987) without pH adjustment. The non-GLP study does not fulfill all recent validity criteria. The mean specific growth rate and the hazard assessment fulfilled the validity criteria. Since the EC10 and EC50 (mean growth rate) is used for the classification, the test can be used for the assessment of the substance.