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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Biodegradation (14 d) 32.9% (COD) (OECD 301D)
Biodegradation (28 d) 23.8% (COD)
not readily biodegradable

Key value for chemical safety assessment

Additional information

The study was conducted according to OECD 301D and GLP using activated sludge (Hartwell, 2012). Under aerobic test conditions the activated sludge was exposed to hydrocarbons, C11-C19, isoalkanes, cyclics, < 2% aromatics at 5 mg/L. After 14 days, 32.9% degradation related to chemical oxygen demand (COD) was measured and after 28 days, Distillates (Fischer-Tropsch), 210-360 degree Celsius, hydrotreated, isoalkanes, cyclics, <0.1% aromatics were biodegraded for 23.8% related to COD. Therefore, the test substance is considered not readily biodegradable.