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Environmental fate & pathways

Biodegradation in water and sediment: simulation tests

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Description of key information

Oleic acid-based TEA-Esterquat is readily biodegradable. Therefore simulation testing in water and sediment is not required. However the read acrosssubstance partially unsaturated TEA-Esterquat was investigated in an  Aerobic Sewage Treatment Simulation Test. The substance proved to be biodegrable by 84.9 % DOC removal average during 23 days.

Key value for chemical safety assessment

Half-life in freshwater:
1.1 d
at the temperature of:
20 °C
Half-life in freshwater sediment:
18 d
at the temperature of:
20 °C

Additional information

The degradation of TEA-Esterquat partially unsaturated was investigated in a study conducted according to OECD Guideline 303 A (Simulation Test - Aerobic Sewage Treatment. A: Activated Sludge Units). In laboratory waste water treatment plant, the test substance was biodegraded by 84.9% DOC removal on average during 23 d.