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Environmental fate & pathways

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The calculated Koc is based on the method detailed in the TGD. Calculation of the log Koc to determine the potential for adsorption/desorption of chemicals is acceptable provided that a recognised and scientifically robust method is used. The TGD includes a method for calculating a log Koc using the log Kow. The Koc of cyclopentane was calculated as 339 using the equation Koc = 0.81 x Log Kow + 0.1 and the Log Kow of 3. These values indicate that although the adsorption of the pentane substances to soil will be moderate they still have good mobility in the environment.