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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Readily biodegradable: 107% (BOD) in 28 days (OECD 301 F)

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Two biodegradation studies are available for 2-amino-1,3-propanediol (APD), one ready biodegradability study and one investigating inherent biodegradability.

 

In the key study, ready biodegradability was tested following OECD guideline 301 F and according to GLP (Hales, 2011). Activated sludge was used as inoculum. By the end of the 28-day test period, biodegradation reached 107.9%, based on BOD, or 82.5%, based on CO2 evolution. Over 60% biodegradation was reached within the 10-day window.

 

The biodegradability of APD was also shown in the inherent biodegradability study, conducted with activated sludge and according to OECD guideline 302 C. Biodegradation reached 92.2% during the 22-day test period.

 

Hence, APD can be considered readily biodegradable according to OECD criteria.