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Environmental fate & pathways

Phototransformation in air

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Key value for chemical safety assessment

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Estimation with the APOWIN model (HSPA Consortium 2009) resulted in a the test substance half-life, as mediated by hydroxyl radical (OH-) attack is calculated as 2.31 days based on a 12-hour day (the 12-hour day half-life value normalizes degradation to a standard day light period during which hydroxyl radicals needed for degradation are generated). The half-life was calculated based on an OH- reaction rate constant of 4.6356 E-12 cm3/molecule-sec and an OH- concentration of 1.5E6 OH/cm3.