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Environmental fate & pathways

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The organic carbon-water partitioning coefficient (Koc) calculated from the octanol-water partition coefficient (log Kow = 1.48) using the equation from the TGD (predominantly hydrophobics) is 19.9 l/kg (log value = 1.30). This predicted value is used in the assessment.

Using a Level I fugacity model, the theoretical distribution of ETBE based on physico-chemical properties between four environmental compartments at equilibrium can be calculated. The results in indicate that 96.2% is distributed to the atmosphere and that volatilisation may be expected from water and soil and adsorption to particulate matter is poor.