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No experimental data on the photo-transformation of the substance in air are available. Based on estimation with the QSAR model AopWin, the substance undergoes rapid degradation in air after reaction with hydroxyl radicals and ozone. The half-life after reaction with hydroxyl radicals is 0.045 days (rate constant is 237.6 E-12 cm3/molecule-sec). For reaction with Ozone, the atmospheric half-life is 0.013 days (rate constant is 87.2 E-17 cm3/molecule-sec). These values are not used in the risk characterisation because these are not experimental values. However the data indicates that the atmospheric lifetime of the substance is sufficiently short that it will not undergo long-range transport to any significant extent.

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