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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

No toxicity upto 100 mg/L when optimal nutrient concentrations are used was found in a screening study.

Key value for chemical safety assessment

Additional information

Only a screening study is available for toxicity to algae.

The effects in the standard algal test were due to chemical toxicity or to chelation of essential nutrients by the substance. In our opinion, the data now available presents a strong case for the assumption that the growth inhibition in the algal test is indeed due to chelation of essential nutrients rather than chemical toxicity as no toxicity upto 100 mg/L is found when optimal nutrient concentrations are used. These indirect effects may adversely affect the potential for algal growth.

A review of the remaining data relevant to classification indicates that the substance should not be classified for environmental effects.