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Environmental fate & pathways

Phototransformation in air

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In the atmosphere a half-life of 4.8 hours for CBS due to reaction with photochemically produced hydroxyl radicals is estimated by AOPWIN v1.92 with a rate constant of 7.95 *10-11cm3/(molecule*sec), considering an OH-concentration of 500,000 radicals/cm³ as a 24-h average (Currenta, 2010). The estimated half-life in air of CBS is much shorter than 48 hours and hence no potential for long-range transport of CBS in air is expected.

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