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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

No acute toxicity tests available for algae. By QSAR methods a 72-96h EC50 of 377.6 mg/l  is estimated while a 96h EC50 of 250 mg/L is predicted.

Key value for chemical safety assessment

EC50 for freshwater algae:
250 mg/L

Additional information

There are no acute toxicity tests available for algae. QSAR methods can be used to calculate aquatic toxicity of chlorodifluoromethane. Using the methods of the Technical Guidance document (based on Van Leuwen et al., 1992), a 72-96h EC50 of 377.6 mg/L is estimated while a 96h EC50 of 250 mg/L is predicted with the ECOSAR v0.99g program.