Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint summary

Administrative data

Description of key information

Additional information

1,3 -butadiene has a low potential for bioaccumulation, with a BCF of 9.8 calculated using the log Kow. As 1,3 -butadiene is a gas that will rapidly volatilize from the aquatic environment, direct and indirect exposure in the aquatic environment is unlikely.

The screening criterion for bioaccumulation in the PBT assessment is that a substance with a log Kow of ≤4.5 is not B or vB. The measured log Kow of 1.99 indicates that 1,3-butadiene does not exceed the screening criteria for bioaccumulation stipulated in ECHA’s Guidance on information requirements and chemical safety assessment - Part C: PBT Assessment (2008). Therefore, 1,3-butadiene is not considered to be bioaccumulative (B) or very bioaccumulative (vB).