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Environmental fate & pathways

Bioaccumulation: aquatic / sediment

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Based on the low log Kow of 2.7, of 2,4,6-trimethylphenol, bioaccumulation of the substance in biota is not expected.

This is also supported by a study published in 1982 by the Japanese Government. Respective results showed for a six week lasting experiment with Cyprinus carpio under flow-through conditions, considering exposure concentrations of 0.2 and 0.02 ppm, BCF values as high as ≥6.5 to ≤ 10 L/Kg and ≥2.7 to ≤ 8.1 L/Kg, respectively. These data support the very low bioaccumulation potential of 2,4,6-trimethylphenol, as set out in the Guidance on Information Requirements and Chemical Safety Assessment, Chapter R.11: PBT/vPvB assessment (2017). The later details that substances showing a BCF higher than 2000 or 5000 can be assigned to be B or vB.