Registration Dossier

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Aquatic toxicity studies of fatty acids, C9-13-neo, copper salts are not available. Thus, read-across to the assessment entities soluble copper substances and neodecanoic acid (as structural analogue of fatty acids, C9-13, neo), is applied since the ions of fatty acids, C9-13-neo, copper salts determine its fate and toxicity in the environment. Reliable studies indicate that the moiety of ecotoxicological concern are copper cations. Regarding copper toxicity in aquatic environments, a large set of data is available including multiple studies on Ceriodaphnia dubia and Daphnia magna as summarized in the attached report “Derivation of acute Ecotoxicity Reference Values (ERVs) for copper” with species-specific geometric mean E(L)C50 values ranging from 12.6 to 40.0 microg Cu/L and 16.3 to 66.2 microg Cu/L, respectively. Data for neodecanoic acid (structural analogue of fatty acids, C9-13-neo) point to a low toxic potential to freshwater invertebrates with a 48-h EL50 of > 457 mg/L neodecanoic acid for Daphnia magna.

Key value for chemical safety assessment

Additional information