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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

effect values for average specific growth rates of Pseudokirchneriella subcapitata, 0-72 h, based on loading rates (OECD 201, EU C.3):
EL50: 46.5 mg/L, NOELR: 1.0 mg/L, EL10: 0.85 mg/L

Key value for chemical safety assessment

Additional information

The results obtained for the read-across source substance WS405777 indicate that the test material is not inhibitory to growth of algae up to the limits of its water solubility (<1 mg/L) and a NOEC and thus a PNEC cannot be determined.


The same conclusion can be drawn for the read-across target substance WS406663 based on the close chemical similarity between the two substances (see IUCLID Section 13 „Validity Assessment Report“ for the read-across approach).