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. 2008 Apr;71(8):1461-8.
doi: 10.1016/j.chemosphere.2007.12.003. Epub 2008 Feb 11.

Natural sunlight NO(3)(-)/NO(2)(-)-induced photo-degradation of phenylurea herbicides in water

M V Shankar  1 , S Nélieu, L Kerhoas, J Einhorn
Affiliations

Natural sunlight NO(3)(-)/NO(2)(-)-induced photo-degradation of phenylurea herbicides in water

M V Shankar et al. Chemosphere. 2008 Apr.

Abstract

The nitrate-induced photodegradation of phenylureas in water was demonstrated to occur efficiently using natural sunlight irradiation. The kinetics of disappearance was found to be dependent on the inducer and substrate concentrations, the phenylurea structure and the origin and composition of the aqueous matrix including the presence of nitrite. The measured effects under sunlight were of the same order of those measured previously in the lab using our solar light simulated system. However, by-product distribution might differ substantially particularly considering the nitration pathway.

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