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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The test substance is readily biodegradable according to OECD criteria (BASF AG, 1993; MITI Japan, 1992). 

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Two valid experimental data are available which demonstrate that N-Methylethanolamine is readily biodegradable according to OECD criteria. The OECD guideline 301 A was used with domestic sewage sludge, whereby 92 - 93 % degradation of test substance was measurable after 21 days. These measurements were based DOC removal (BASF AG, 1993). Thus the test substance is regarded as readily biodegradable. This result is confirmed by a test cited by the Japanese National Institue of Technology and Evalution. The test was conducted according to OECD guideline 301 C (MITI Japan, 1992). The exposure time was 28 days. 97 % degradation of N-Methylethanolamine was found concerning DOC removal and 68 % concerning oxygen consumption (BOD / ThOD).