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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Readily biodegradable (according to OECD criteria)

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Two biodegradation tests on readily biodegradbility are available for IBDU. In a GLP study according to OECD guideline 301C, IBDU was degraded by 78% after 28 days (NITE 2002). The OECD criteria: 10 -day window and pass level >= 60% were fullfilled. Therefore, IBDU can be classified as readiliy biodegradable. This result is supported by a study from BASF AG (1988), where in a non GLP test according to Guideline 301 E, IBDU was degraded by 85% after 28 days. In this test, however, the OECD criteria of a 10 day window was not fullfilled and by thereby this result can only be used as additional information.