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Environmental fate & pathways

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There are no experimental data on environmental distribution of dichloromethane. QSAR modeling predicts that dichloromethane will volatize rapidly from surface water with TD50 = 0.04 days (river) and 3.72 days (lake).


The low value for soil organic carbon-water partition coefficient (logKoc = 1.33) suggests that dichloromethane will not adsorb onto soil and sediment and, therefore, together with its high volatility, will not persist in these environmental media.


The data on environmental distribution of dichloromethane obtained from the level III fugacity model confirms that dichloromethane does not degrade fast and depending on various emission scenarios, most of dichloromethane will be phisically removed (advected) from the environment.