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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

OECD 301B, 301E and 302B studies.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

This substance was tested for ready biodegradation by both OECD 301B and 301E guidelines. In the 301E study based upon DOC removal the substance only achieved 33% degradation within the 10 day window, but achieved 70% and 90% degradation at days 34 and 42 respectively. A subsequent test using method 301B based upon CO2 evolution exhibited 65% degradation in the 10-day window and >76% degradation at day 28. Based upon the 301B study this substance meets the criteria for readily biodegradable. An additional inherent biodegradation study showed >99.5% degradation at day 15 at which time the test was terminated.