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

Based on the results of indoor photoreactor studies, a photochemical mechanism has been developed for the OH-initiated degradation of 1,4-dioxane in the presence of NOx. The reaction scheme constructed has been tested by comparison of computer box model calculations and experimental data taken from indoor photoreactor studies. Experimentally obtained and modelled concentration–time profiles for selected reactants are in excellent agreement. A sensitivity analysis was performed for the reaction system. These calculations highlight the key reactions of the treated chemical model.