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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Biodegradation in water - manometric respirometry test (OECD 301F; GLP compliant): not readily biodegradable (1.6 % after 28 days)

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

One GLP study on biodegradation (OECD 301F) was conducted with non-adapted activated sludge. The manometric respirometry test resultet in 1.6 % degradation of the subsatnce after 28 days. Hence, the substance is not readily biodegradable under the test conditions. Further, the test item did not inhibit the activity of activated sludge microorganisms at 41.8 mg/L (biodegradation in toxicity control was ≥ 25 % after 14 days of incubation). The biodegradation of the reference substance sodium benzoate (56.9 mg/L) amounted to 87.7 % after 14 days.