Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

The short-term toxicity of [ω-hydroxy-C16 (saturated and unsaturated) and C16 (unsaturated)] fatty acids to aquatic organisms was prodicted using two QSAR models for both aquatic plants (algae) and aquatic invertebrates (Daphnia). The constituents queried account for more than 75% of the total UVCB composition. Numerous constituents are predicted to demonstrate toxicity at concentrations near or above their solubility limit, indicating that acute toxicity endpoints predicted by the models may not be observable under relevant environmental conditions. The most conservative relevant acute toxicity prediction of any individual constituent was generally adopted as each endpoint value. These predicted aquatic toxicity endpoint values were each >1mg/L and <10mg/L. The substance meets the Category 2 classification criteria for short-term aquatic toxicity according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) of the United Nations (2015) (including all amendments). The substance is also predicted to be readily biodegradable therefore no long-term (chronic) aquatic hazards are expected.

Additional information