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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Biodegradability: 98% of 1,4-butenediol biodegraded in 5 days

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Resuts of a guideline study of inherent biodegradability conducted according to EU Method C.9 indicated 98% biodegradation in 5 days (BASF AG 1993). The rapid decay of the test substance in this study indicates that 1,4 -Butenediol (B2D) is readily biodegradable. The estimate of biodegradability calculated using BioWin v. 4.10 also predicts that 1,4 -Butenediol is readily biodegradable (BioWin v4.10 2010). This determination is supported by results of a second guideline-equivalent study for inherent biodegradability of B2D and read-across to the results of a guideline study for ready biodegradability conducted using 1,4 -Butanediol.