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Environmental fate & pathways

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In the EU RAR (2008), it is concluded that, based on the available information a sound assessment of biodegradation is not possible, so as a worst-case 2,4,4-trimethylpentene has to be assessed as not biodegradable. The key and supporting study in this dossier support the characterisation of 2,4,4 -trimethylpentene as not readily biodegradable.

The BCF for 2,4,4 -trimethylpentene is 925 -3548 based on its log Kow of 5. 2,4,4 -trimethylpentene has a Henry's Law Constant of 282975 Pa.m3/mol, indicating that the substance would partition to the atmosphere. The Koc of 2,4,4 -trimethylpentene is 562, indicating that the substance is in the low to medium soil mobility classes.