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Environmental fate & pathways

Biodegradation in water: screening tests

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Biodegradation in water: readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

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Readily biodegradability of 2 -isocyanatoethyl-methacrylate (MOI) was investigated in a study by Simon (2012). This test was performed according to OECD Guideline 301B and EU Method C.4 -C in accordance with GLP requirements. The test substance was incubated in activated sludge at a concentration of approximately 20 mg/L DOC at 22 ± 2 °C. At the end of the test, after 28 days, the biodegradation of MOI was 87% and the 10 -days window was reached (biodegradation was 68% after 10 days). The test substance was thus considered as ready biodegradable under test conditions.

The results from the toxicity control containing test and reference substance (80% biodegradation within 14 days) indicate that MOI has no inhibitory effect on the activity of the sludge microorganisms.