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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

2-ethylaminoethanol attained 62% degradation after 28 days and satisfied the 10-Day window validation criterion, whereby 60% degradation must be attained within 10 days of the degradation exceeding 10%. 2-ethylaminoethanol can therefore be considered to be readily biodegradable under the strict terms and conditions of OECD Guidance No. 301B.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

A study was conducted to guideline OECD 301B (CO2evolution test) using the substance 2‑ethylaminoethanol (10 and 20 mg/L). The substance 2-ethylaminoethanol was 62% biodegraded over 28 days (i.e.60%) which is considered evidence of ready biodegradability. The pass level of 60% biodegradation was achieved within 10 days. During the test greater than 20% degradation was observed and therefore the substance would not be expected to be persistent in the environment.