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Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Link to relevant study record(s)

Description of key information

No chronic toxic effects on aquatic invertebrates up to the limit of water solubility

Key value for chemical safety assessment

Additional information

The chronic toxicity of Amides, C18, branched and linear on aquatic invertebrates was investigated in a study following OECD guideline 211 (Harris, 2015). Daphnids were exposed to a nominal test substance concentration of 100 mg/L in a semi-static test system. The exposure duration was 21 days. The test solution was renewed on days 3, 5, 7, 10, 12, 14, 17 and 19. A single Daphnid was observed to be dead in the test group on day 11, however, this was not considered to be significant and no further immobilization was observed. Thus, based on the reproduction rate a NOEC ≥ 0.0038 mg/L based on the measured substance concentration was determined.

Based on the results Amides, C18, branched and linear is considered not chronically toxic to aquatic invertebrates within the limit of water solubility (WS: 0.019 mg/L).