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Environmental fate & pathways

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Based on the considerations described in the document “Read-across substantiation C5-6 branched alkylmethyl-ethers” (incl. the supporting references Tuppurainen et al., 2007 and Niska et al., 2008), it can be concluded that the available information of TAME can be used to predict the transport and distribution of the substance ‘C5-6 branched alkylmethyl-ethers’ with sufficient certainty.

The organic carbon-water partitioning coefficient (Koc) of 80 l/kg was derived based on the available data for the consituents of C5-6 branched alkylmethyl-ethers.

Using a Level I fugacity model, the theoretical distribution of TAME based on physico-chemical properties between four environmental compartments at equilibrium can be calculated. The results indicate that 95.7% is distributed to the atmosphere and that volatilisation may be expected from water and soil and adsorption to particulate matter is poor.