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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Valeric acid shows rapid and extensive biodegradation in a variety of screening tests

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Valeric acid meets the criteria for ready biodegradation, and shows rapid and extensive biodegradation in a variety of tests. Valeric acid showed 72% biodegradation within 10 days of incubation in a standard Biochemical Oxygen Demand Test. Results of an OECD 301D Closed Bottle Test, with a test chemical containing a mixture of valeric acid (64%) and 2 -methylbutyric acid (36%), showed 72% degradation within 11 days. Valeric acid also showed rapid and extensive biodegradation, 95% in 5 days, in an OECD 302B Zahn-Wellens Test.