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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Alkenes C20-24 are considered to be readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Alkenes with a carbon number range of C20 -24 have been found to be readily biodegradable in two biodegradation screening tests. After 28 days 92% biodegradation was observed in a modified Sturm test (Mead, 1998). All validity criteria were met so alkenes C20 -24 are readily biodegradable. This is supported by another modified Sturm test (Clarke, 2008), where 92% biodegradation was again observed after 28 days. The 10 day window was met in this study therefore the substance is considered readily biodegradable .