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Environmental fate & pathways

Phototransformation in water

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The photolysis of TCP in pure water was studied using a UV lamp generating light in the wave length spectrum from 185 to 360 nm. The rate of photolysis was determined in four experiments. Ten mL of test solution at a low concentration were exposed to UV light in quartz or pyrex tubes arranged around the lamp. The concentration of the substance was measured at set time intervals by gas chromatography. The half-life for photodegradation of TCP was found to be considerably greater than 840 minutes.