OzoneOxidants, PhotochemicalAir PollutantsOzone DepletionAir PollutionAtmosphereNitrogen DioxideEnvironmental MonitoringChlorine CompoundsSmogEnvironmental ExposureParticulate MatterInhalation ExposureSulfur DioxideStratospheric OzoneChlorofluorocarbonsIndigo CarmineLungPentanesSeasonsDisinfectionCitiesDisinfectantsWeatherBronchoalveolar Lavage FluidAir MovementsRespiratory Tract Diseases