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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The test item showed to be readily biodegradable under the conditions applied in a Manometric Respirometry test, having reached the pass level (60% biodegradation) at the end of the 28 days test, showing a total 78.3% during the test period (mean values between two replicates).

Being an UVCB substance, following Regulation 286/2011 (emending the regulation 1272/2008 for the purposes of its adaptation to technical and scientific progress), point 4.1.2.9.5 part c, the 10-day window condition can be waived and the pass level applied at 28 days

Moreover, the test item showed no inhibitory effects on the microorganism activity at the tested concentration, as demonstrated by the 25% of biodegradation exceeded in the toxicity control at the third day of test period.