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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Biodegradation = 30-40 % CO2 Evolution test(OECD 301B)

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Ready biodegradability was tested on similar substance following OECD 301 B. The biodegradation resulted to be between 30 and 40 % in the CO2 evolution test and this values correspond to the results: "not readily biodegradable".
This results were confirmed by the estimation of ready biodegradability on Acid Yellow 23.

Based on the above considerations, Acid Yellow 23 could be considered as not readily biodegradable.