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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Key value for chemical safety assessment

Biodegradation in water:
inherently biodegradable

Additional information

In OECD Guideline 301B, C, and D studies, the test substance was determined to be not Readily Biodegradable. In a test for inherent biodegradation (OECD 302C), however, the test substance was determined to be inherently biodegradable.

No rate constant for elimination in a sewage treatment plant can be provided, however. The results of inherent biodegradation tests can be used for determining a rate constant only if a level of 70% degradation is reached within 14 days in the Modified MITI Test (II).