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Environmental fate & pathways

Phototransformation in water

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The catabolism of 1,2-dichloropropane has been tested in Pyrex vessels containing demineralized water. As Pyrex absorbs wave-length < 290 nm, the sunlight spectrum of the troposphere was simulated during the irradiation. The transformation rate was 4 % after 180 minutes irradiation with 5.65 mg 1,2-dichloropropane/l starting concentration and was 8 % after 120 min irradiation with a starting concentration of 10.17 mg 1,2-dichloropropane/l. This results in the half-life times estimated at ca. 50.9 hours and 16.6 hours.