Registration Dossier

Diss Factsheets

Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The performance of simulation tests for biodegradation in water and sediment is scientifically unjustified.
Regulation (EC) No 1907/2006 (REACH), Annex IX, Sect. 9.2.1.2 and Sect. 9.2.1.4, Col. 2, states as follows:
“9.2.1.2/9.2.1.4: The study need not to be conducted:
– the substances is highly insoluble in water; or
– the substance is readily biodegradable.
and
- if the substance is readily biodegradable; or
– if direct and indirect exposure of sediment is unlikely."
The test substance is practically insoluble in water. In addition, low exposure is guaranteed, as no sludge application from STP on soil will be done and aerial deposition is negligible. Thus, simulation testing for biodegradation in water and sediment was considered not scientifically justified.

Key value for chemical safety assessment

Additional information