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Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

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Description of key information

A Manometric Respirometry test (OECD 301F) in accordance to GLP principles and several non-GLP studies (similar to a 301D, a BOD test and 301B) are available for tripropylene glycol methyl ether.

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Tripropylene glycol methyl ether meets the criteria for ready biodegradation within the 10 day window in a Manometric Respiratory test (OECD 301F), as 60% degradation based on O2consumption was achieved after 10 days. The biodegradation of tripropylene glycol methyl ether was confirmed by measurement of substantial mineralization (51% CO2production) and DOC removal (66%) after 28 days. In a Zahn-Wellens test, 94% biodegradation based on DOC consumption test was achieved after 20 days. In addition, degradation was observed in a closed bottle test BOD study.

 

Based on the available test results, tripropylene glycol methyl ether can be classified as ”Readily biodegradable passing the 10 day window”.