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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Biotic degradation of the substance was determined by the Sealed-Vessel CO2 Evolution test using International Standard ISO 14593 (adopted March 1999) and draft Test Guideline OECD 310 (CO2 in sealed vessels - Headspace Test). Domestic, activated sludge was exposed to 9.7 mgC/l substance and incubated for 28 days. The total inorganic carbon content of each sample was then determined using a carbon analyser. The substance tested at 9.7 mg/L was found not to be readily biodegradable (maximum of 2.6% degradation after 14 days and 0.1% degradation after 28 days) under the conditions of the test.

Key value for chemical safety assessment

Biodegradation in water:
not biodegradable
Type of water:

Additional information