Registration Dossier

Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

Readily biodegradable: 83% (Manometric Respirometry Test) in 26 days (OECD 301F).

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

The most recent standard reliable study which was read across from C6 -12 alcohols contains significant and useful results. This study gave results of 83% in 26 days (OECD 301F) (readily biodegradable). in another supporting study, a ready biodegradtion of 64 - 79% (OECD 301B) was obtained for the test substance. Similarly, a ready biodegradation of 88% in 30 days and 74.6% in 28 days using OECD 301D and OECD 301B respectively was obtained for a decanol.

However, in a non reliable study, a ready biodegradation of 79% (OECD 301B) was obatined for the test substance, the study was disregarded because the inoculum was acclimated before use. The read across is justified on the basis of structural feature and similar environmental property which is common to the alcohols in this category.

The test substance is found to be readily biodegradable on the basis of available data.

In some cases the CAS and chemical identity stated refer to SDA nomenclature for this substance. in REACH substance identification it is necessary to be more specific as to the chain lengths present. Full details may be found in the CSR.