OH-initiated degradation mechanism of 1,4-dioxane in the presence of NOx

Based on the results of indoor photoreactor studies, a photochemical mechan ism has been developed for the OH-initiated degradation of 1,4-dioxane in t he presence of NOx. The reaction scheme constructed has been tested by comp arison of computer box model calculations and experimental data taken from indoor photoreactor studies. Experimentally obtained and modelled concentra tion-time profiles for selected reactants are in excellent agreement. A sen sitivity analysis was performed for the reaction system. These calculations highlight the key reactions of the treated chemical model. (C) 1999 Elsevi er Science B.V. All rights reserved.