Pulmonary response to threshold levels of sulfur dioxide (1. 0 ppm) and ozone (0. 3 ppm) (journal version)
Technical Report
·
OSTI ID:6864949
The authors exposed 22 healthy adult non-smoking men for 2 hours to either filtered air, 1.0 ppm sulfur dioxide, 0.30 ppm ozone, or the combination of 1.0 ppm sulfur dioxide plus 0.30 ppm ozone. It was hypothesized that exposure to near-threshold concentrations of these pollutants would show any interaction between the two pollutants that might have been masked by the more-obvious response to the higher concentrations of ozone used in previous studies. Each subject alternated 30-minute treadmill exercise with 10-minute rest periods for the 2 hours. Following ozone exposure alone, forced expiratory measurements (FVC, FEV-1, and FEF25-75%) were significantly decreased. The combined exposure to SO/sub 2/ plus O/sub 3/ produced similar but smaller decreases in these measures. There were small but significant differences between the ozone and the ozone plus sulfur dioxide exposure for FVC, FEV-1,-2,-3, and FEF25-75% at the end of the 2-hour exposure. It was concluded that, with these pollutant concentrations, there is no additive or synergistic effect of the two pollutants on pulmonary function.
- Research Organization:
- California Univ., Santa Barbara (USA). Environmental Stress Inst.
- OSTI ID:
- 6864949
- Report Number(s):
- PB-89-109896/XAB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pulmonary response to threshold levels of sulfur dioxide (1. 0 ppm) and ozone (0. 3 ppm)
Reproducibility of the pulmonary function response of older men and women to a 2-hour ozone exposure
Effects of breathing sulfur dioxide and an acidic sulfate aerosol during exercise on selected pulmonary function measurements
Journal Article
·
Sat Jun 01 00:00:00 EDT 1985
· J. Appl. Physiol.; (United States)
·
OSTI ID:5241397
Reproducibility of the pulmonary function response of older men and women to a 2-hour ozone exposure
Journal Article
·
Mon Aug 01 00:00:00 EDT 1988
· J. Air Pollut. Control Assoc.; (United States)
·
OSTI ID:6864561
Effects of breathing sulfur dioxide and an acidic sulfate aerosol during exercise on selected pulmonary function measurements
Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:5884320