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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

In an OECD 301 B study a biodegradability of the test substance of 1.1 % was observed after 28 days, indicating that the substance cannot be considered as readily biodegradable.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

Biodegradation in water: screening test (ready biodegradability):

A CO2-evolution test according to OECD guideline 301 B was performed in order to evaluate aerobic elimination and degradation potential of the test item (BASF 2015, 2015ESG0149R). An initial test concentration of 12.3 mg/L TOC (corresponding to 18.7 mg test substance/L) was applied. Based on the CO2 evolution, the percentage biodegradation of the test substance was 1.1 % after 28 days. Thus, under the conditions of the present study, the test substance cannot be considered to be readily biodegradable.