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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The test substance is poorly biodegradable in terms of OECD criteria and poorly eliminated from water

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

In a study conducted for Dow Elanco in 1998 the ready biodegradability of the test substance was assessed according to OECD 301 F. Biodegradation was not observed during the test period. In a DOC Die Away-Test accroding to OECD 301 A (Hüls AG, 1997) a biodegradation degree of 18% was measured after 28 d indicating that the chemical is not readily biodegradable.

In a MITI test (1992) resembling the test guideline OECD 302 C demonstrated the absence of inherent biodegradation. Further, an OECD 302 B BASF-study from 1981 demonstrated a low potential for elimination from water.