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A detailed atmospheric photochemical mechanism for the atmospheric reactions of isoprene its major oxidation products in the presence of NO x , which incorporates the most recent laboratory results and our current understanding of the system, is described. It is evaluated by comparing its predictions against results of NO x-air irradiations of isoprene and(More)
This report describes a calculation of the Maximum Incremental Reactivity (MIR) and the Maximum Ozone Incremental Reactivity (MOIR) scales using an updated version of the Carbon Bond IV chemical mechanism which is being used in the air quality modeling in Phase II of the Auto/Oil Air Quality Improvement Research Program. Except for the mechanism, the(More)
The reaction of OH and NO(2) to form gaseous nitric acid (HONO(2)) is among the most influential in atmospheric chemistry. Despite its importance, the rate coefficient remains poorly determined under tropospheric conditions because of difficulties in making laboratory rate measurements in air at 760 torr and uncertainties about a secondary channel producing(More)
A series of indoor environmental chamber experiments were conducted to fill gaps in the data base needed for evaluation of gas-phase photochemical mechanisms for assessing the effects of emissions of volatile organic compounds (VOCs) on ambient air quality. Two large dual-mode indoor Teflon bag chambers, one irradiated by blacklights and the other by xenon(More)
An updated and expanded version of the Carbon Bond mechanism (CB05) has been incorporated into the Community Multiscale Air Quality (CMAQ) modeling system to more accurately simulate wintertime, pristine, and high-altitude situations. The CB05 mechanism has nearly 2 times the number of reactions relative to the previous version of the Carbon Bond mechanism(More)
OBJECTIVE The purpose of this study was to assess the efficacy of fluvoxamine in the treatment of binge-eating disorder. Binge-eating disorder is a newly described eating disorder characterized by recurrent episodes of binge eating but without purging behaviors. Uncontrolled reports have suggested that serotonin selective reuptake inhibitors (SSRIs) may be(More)
An experimental and modeling study was conducted to assess the atmospheric impacts of chloropicrin emissions. Chloropicrin absorption cross-sections were measured in the ~270-390 nm wavelength region, and its overall photodecomposition quantum yield under simulated sunlight conditions was found to be 0.87±0.26. In environmental chamber experiments,(More)
Environmental chamber experiments and computer model calculations were conducted to assess the atmospheric ozone formation potentials of four mineral spirits samples. Analyses of the four samples by high-resolution GC-MS, FIA type analysis, carbon number fractionation, and elemental composition indicated that they consisted primarily of C 8-C 15 normal(More)
SUMMARY The table of maximum incremental reactivity (MIR) values for quantifying relative ground-level ozone impacts of volatile organic compounds (VOCs), and its associated uncertainty classifications, have been updated. The updates incorporate an update of the chemical mechanism used to calculate the ozone impacts from SAPRC-99 to the newly developed(More)