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Environmental fate & pathways

Adsorption / desorption

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Key value for chemical safety assessment

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The adsorption/desorption behaviour of TCP was studied using silty and sandy loam (Walton et al. 1992). The KOC values resulting from the experiments were in the range of 77 to 95 indicating the low ability of the substance for adsorption. These low values show the high mobility of TCP in soil that may lead to the appearance of the substance in groundwater if release to the soil occurs. Further, the organic carbon-water partitioning coefficient (KOC) was predicted using the KOCWIN v2.0 modelling program published by the US Environmental Protection Agency. The calculated KOC values were in a range of 52-116 (Wormuth 2010a).