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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The test substance showed no toxic effects on Pseudokirchneriella subcapitata during the 72‑hour test period up to the maximum concentration which could be maintained under the conditions of the test (11 µg/L; 100 mg/L loading rate).

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
11 µg/L

Additional information

The test item had no toxic effects on Pseudokirchneriella subcapitata during the 72‑hour test period up to and including the mean measured concentration of 11 µg/L, which is the maximum concentration which could be maintained under the conditions of the test (100 mg/L loading rate).

The test concentration of 11 µg/L was, determined to be the 72‑hour NOEC. This value might even be higher, but concentrations of the test item above the solubility limit in the test water were not tested, in accordance with the test guidelines. The 72‑hour LOEC was higher than 11 µg/L, the maximum concentration of the test item which could be maintained under the conditions of the test.