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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Vinyl chloride was not found readily biodegradable after 28 days under aerobic conditions. According to OECD 301D 16% biodegradation was found for 2.04 mg/l concentration of vinyl chloride.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Various biodegradation screening tests were performed with vinyl chloride. Vinyl chloride was not found ready biodegradable under the rigid test conditions of the MITI test (16% after 28 days) or the test from the U.S. EPA (1977) as described in ATSDR (2006) in which the BOD of raw sewage seed was compared with BOD of raw sewage seed with vinyl chloride (no biodegradation observed).

Using adapted inoculum vinyl chloride degraded completely in two short term tests under aerobic conditions (Hartman 1985; Fogel 1986).