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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

NTO is not readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Determination of percent (%) biodegradation of NTO has been performed according to AnalyCen Ecotox's Standard Operating Procedure Lab IIA - 3.1 (AnalyCen Ecotox, 2002) which is based on OECD guideline 306 for testing of chemicals: "Biodegradability in Seawater" Closed Bottle Test (OECD, 1992)

The ready biodegradability of NTO was also determined using the computer program EPISUITE, based on ultimate survey model (Biowin3) and MITI linear model (Biowin5). Based on the study and the the Biowin calculation the test substance is not readily biodegradable.