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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Biodegradation in water: screening tests

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Administrative data

Link to relevant study record(s)

Description of key information

In two tests for ready biodegradability, contrasting results were obtained using carbazole as test substance.
NITE/CERI 2002/1999 reports no biodegradation of carbazole after 2 weeks in a MITI I test.
In a biodegradation test according to OECD test guideline 301 E, 86% biodegradation was observed within 7 days (Knacker/UBA 1989).

Key value for chemical safety assessment

Additional information

The study of Knacker et al. 1989 is considered to be invalid based on weight of evidence.