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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Reference
Endpoint:
biodegradation in water: simulation testing on ultimate degradation in surface water
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the substance is readily biodegradable

Description of key information

The performance of simulation tests for biodegradation in water and sediment is scientifically unjustified.
REACh Regulation No. 1907/2006, Annex IX, Sect. 9.2.1.2, Col. 2, states as follows:
“9.2.1.2: The study need not to be conducted:
 - if the substance is readily biodegradable, or
 - if direct and indirect exposure of sediment is unlikely.”
Direct and indirect exposure of water and sediment is highly unlikely.
In addition, a determination of the biodegradability of the test item was performed according to OECD 301D, respectively. The test item is evaluated as ready biodegradable. Thus, a simulation tests for biodegradation in sediment of the test item is scientifically unjustified.

Key value for chemical safety assessment

Additional information