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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

BAYER AG (1992).
A test on biodegradation following OECD Guideline 301F with activated sludge exposed to 100 mg chlorobenzene/L under aerobic conditions for 28 days showed that chlorobenzene is not readily biodegradable.
A biodegradation study of the HOECHST AG (activated sludge, industrial, non adapted, respirometry) showed a degradation of >90% after 15 days and 70% after 10 days. Because the original reference is not available the results/study is not reliable.
Chlorbenzene can be degradaded aerobically by adapted microorganisms in water.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information