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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Ready Biodegradability in a Manometric Respirometry Test

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Percentage Biodegradation:

The criterion for ready biodegradability under the conditions of a manometric respirometry test is the 10-day window, describing the period between reaching at least 10% degradation and 60% degradation. This period should not exceed 10 days.

The mean biodegradation from day 1 till the test end at day 28 was 0% (THODNH4, ThODNO3).

Conclusion:

The degradation of the test item was 0% after 28 days (THODNH4, ThODNO3).

Therefore, the test item is considered to be not readily biodegradable.