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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

In a valid OECD 301B test a mean degradation rate after 28 d of 10-20% CO2/ThCO2  was recorded.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

In a valid OECD 301B test a mean degradation rate after 28 d of 10-20% CO2/ThCO2 was recorded. Acccording to the test result the substance is not biodegradable under the chosen conditions. However, additional simulation with QSAR using the Biowin family Biowin 1-6 predicts contradicting result indicating that the substance will biodegradate fast. The non -linear model of Biowin 2 and the ultimate biodegradation time of Biowin 3 calculate values of 0.66 and 2.96, respectively. Furthermore, the Miti non-linear model predicting of Biowin 6 indictes a fast biodegradation (>0.6).