Registration Dossier

Environmental fate & pathways

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If released to the atmosphere, vapour phase MMT(2-EHTG) will be degraded by photochemically induced hydroxyl radicals, with a half-life of ca. 9.4 hrs. A Henry’s Law constant of 4.598E-06 atm m3/mol predicts that MMT(2-EHTG) will volatilise only minimally from surface water; half-lives from a model river or lake are 350 hours and 168.6 days, respectively. Based on Level III distribution modelling it is estimated that the majority of MMT(2-EHTG) released to the environment will partition into soil (65.7 %) and sediment (17.4 %), with a somewhat smaller amount in water (16.5 %).

The MMT (2 -EHTG) has shown to be readily biodegradable. It is expected to rapidly degrade once introduced into the environment.

Modeling results show that MMT(2 -EHTG) has a low potential for bioaccumulation.

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