||Preexposure to Low Ozone Concentrations Does Not Diminish the Pulmonary Function Response on Exposure to Higher Ozone Concentrations.
Gliner, J. A. ;
Horvath, S. M. ;
Folinsbee, L. J. ;
||California Univ., Santa Barbara. Inst. of Environmental Stress.;Health Effects Research Lab., Research Triangle Park, NC.
Respiratory system ;
Air pollution effects(Humans) ;
Lung function tests
||Some EPA libraries have a fiche copy filed under the call number shown.
It has been well documented that persons exposed to the air pollutant ozone in concentrations between 0.40 and 0.50 ppm5 on consecutive days will adapt to the acute respiratory irritation of ozone. The adaptation consisted of the absence of any alteration in lung function during ozone exposure and persisted for less than 2 wk. More specifically, this adaptation resulted in minimal changes in forced vital capacity (FVC), forced expiratory volume in one second (FEV1), and maximal expiratory flow (FEF25-75%) during ozone exposure when the exposures were repeated for 3 to 5 consecutive days.