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PETMP is considered to have a low potential for bioaccumulation according to the log Pow reported to be ca. 2.8 at pH 7 and 30 °C (see chapter 4.7).

The BCF for the aquatic environment was calculated to be 23.7 using the software BCFBAF v3.00 (2008) implemented in Epi Suite developed by US EPA.

The substance is not stable in the aquatic environment. However, it is not experimentally confirmed which mechanisms is the primary cause for the degradation, hydrolysis or oxidation. The hydrolysis test showed the fast elimination of the test substance, probably due to oxidation.

Thus, testing on bioconcentration of PETMP in aquatic organisms is not considered to provide further relevant information for the bioaccumulation assessment as the calculated BCF is far below 2000 which is the criterion for a substance to be classified as 'B'. Additionally, the log Pow of PETMP is lower than 4.5 which is a screening criterion for bioaccumulating substances.

 

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