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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Not readily biodegradable: 0% after 28 d (O2 consumption, OECD 301 D)

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

One experimental study was performed according to the OECD 301 D (GLP). A filtrate of activated sludge from a domestic sewage treatment plant was used as inoculum. 0% degradation of the test substance was recorded based on O2-consumption after 28 d. Thus, the test substance is not readily biodegradable according to the OECD criteria. A toxicity control containing both, reference substance and test substance, did not indicate inhibitory effects of the test substance to the inoculum (31% degradation after 14 d; trigger value of 25% biodegradation in the toxicity control was reached).