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Environmental fate & pathways

Biodegradation in water: screening tests

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Link to relevant study record(s)

Description of key information

The key study is an activated sludge die-away biodegradation test  using non-adapted and adapted activated sludge. This study resulted in a rapid degradation of the test substance in particular under abiotic and non-adapted conditions, indicating that the substance itself is rapidly degraded. However as almost no mineralisation was observed and the substance was not readily biodegradable in standard tests on ready biodegradations, further investigations on the degradation products are proposed,

Key value for chemical safety assessment

Biodegradation in water:
inherently biodegradable

Additional information

The key study is an activated sludge die-away biodegradation test using non-adapted and adapted activated sludge. This study resulted in a rapid degradation of the test substance in particular under abiotic and non-adapted conditions, indicating that the substance itself is rapidly degraded. However as almost no mineralisation was observed and the substance was not readily biodegradable in standard tests on ready biodegradations, further investigations on the degradation products are proposed. In a first approach the substance can be regarded as inherently biodegradable.

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