Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

There are no toxicity data for soil organisms relating to 2-hexyldecan-1-ol or other long chain alcohols >=C16 in length.

In Annex X of Regulation (EC) No 1907/2006, it is laid down that long-term toxicity to terrestrial organisms shall be proposed by the registrant if the chemical safety assessment indicates the need to investigate further the effects of the substance and/or relevant degradation products on terrestrial organisms. Column 2 of Annex X states that studies do not need to be conducted if direct and indirect exposure of the soil compartment is unlikely.

The test substance is not supposed to be applied directly to soil. Indirect exposure to soil via sewage sludge transfer is unlikely since the substance is readily biodegradable. Reliable measured data demonstrate that Guerbet Alcohols of chain lengths at least up to C32 are readily biodegradable. Experimental data provided in CSR Chapter 5 shows that the 10-day window pass level was reached for ready biodegradability with removal levels of up to 96% for carbon chain lengths of C16. In the environment, ready biodegradability means it can be assumed that 2-hexyldecan-1-ol will be biodegraded within the STP process and as a consequence a transfer to the soil compartment via sewage sludge is not expected. Therefore, no tests on terrestrial organisms are provided.