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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

OECD Guideline 301D, GLP, key study, validity 1:
77% biodegradation after 28 days within the 10 day window.
Readily biodegradable.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

One valid key study is available to assess the biodegradation potential of the registered substance. This study was performed according to OECD Guideline 301D with GLP statement. The substance was exposed to river water at a concentration of 2 mg/L with culture medium in closed bottles in the dark at 22-24 °C for 7, 14, 21 and 28 days. The degradation of the substance was assessed by the measurement of oxygen consumption.

The test substance attained 77% degradation after 28 days and satisfied the 10 day window validation criterion. Therefore the registered substance can be considered to be readily biodegradable.