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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Readily biodegradable: 78.1-84.7% (CO2 evolution) in 28 days (OECD 301B)

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Three studies investigating the ready biodegradability of Fatty acids, C8-10, mixed esters with adipic acid and trimethylolpropane (CAS No. 95912-89-3) are available. The three key studies were conducted according to OECD guideline 301B under aerobic conditions using non-adapted activated sludge as inoculum (Häner, 2006a/2007; 2006b; 2006c). Based on CO2 evolution mean degradation rates of 84.7 (Häner, 2006a/2007, 78.1 (Häner, 2006b) and 80.9% (Häner, 2006c) were observed after 28 days. The 10-day-window criterion was fulfilled in all three studies. Hence, the substance is determined to be readily biodegradable according to OECD criteria.