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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

In a study conducted according to OECD Guideline 201, the 72 h EC50 and NOEC values based on growth rate were 3.5 mg test mat./L and 1.0 mg test mat./L, respectively.

Key value for chemical safety assessment

EC50 for freshwater algae:
3.5 mg/L
EC10 or NOEC for freshwater algae:
1 mg/L

Additional information

In a 72 hour acute toxicity study, the cultures of Pseudokirchnerella subcapitata were exposed to benzophenone in accordance with the OECD Guideline 201 (Alga, Growth Inhibition Test). The 72 h EC50 and NOEC values based on growth rate were 3.5 and 1.0 mg test mat./L, respectively.