Registration Dossier

Ecotoxicological information

Sediment toxicity

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Key value for chemical safety assessment

Additional information

In absence of any sediment test, the equilibrium partitioning method (EPM) can be applied as a first screen “Guidance on information requirements and chemical safety assessment Chapter R.7b: Endpoint specific guidance”, Section 7.8.14 Integrated Testing Strategy for toxicity to sediment (ECHA, 2017). EPM cannot be used for all surface active substances. Nevertheless, since alcohols, C12-13, ethoxylated is a non-ionic surfactant its environmental toxicity and binding properties are driven by lipophilicity. When adsorption behavior is triggered by the lipophilicity the EPM is a suitable method. Hence the use of EPM is valid for the sediment toxicity assessment of alcohols, C12-13, ethoxylated. The PEC/PNEC ratios for the sediment compartment are below one, hence long-term sediment tests with benthic species are not required. Furthermore the substance is readily biodegradable. Therefore it can be expected that the substance will be mineralized under environmental conditions within a short time period. Long-term exposure of sediment organisms to alcohols, C12-13, ethoxylated and/or degradation products of this substance is therefore unlikely.