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RECORD NUMBER: 424 OF 2620

OLS Field Name OLS Field Data
Main Title Changes in pulmonary function and airway reactivity due to prolonged exposure to typical ambient ozone (03) levels /
Author Horstman, D. ; McDonnell, W. ; Folinsbee, L. ; Abdul-Salaam, S. ; Ives, P.
Other Authors
Author Title of a Work
McDonnell, W.
Salaam.
Folinsbee, L.
Ives, P.
CORP Author Health Effects Research Lab., Research Triangle Park, NC. ;Environmental Monitoring and Services, Inc., Chapel Hill, NC.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Health Effects Research Laboratory,
Year Published 1989
Report Number EPA/600/D-89/246
Stock Number PB90-129297
OCLC Number 45170545
Additional Subjects Ozone ; Lung ; Exercise(Physiology) ; Males ; Exposure ; Reprints ; Respiratory airflow ; Air pollution effects(Humans) ; Dose-response relationships
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB90-129297 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 14 pages ; 28 cm
Abstract
Previously observed (JAPCA 38:28-35, 1988) pulmonary responses of delta FEV1 (-13%), moderate to severe pain upon inspiration, and a doubling of PD100 for methacholine following prolonged moderate exercise at 0.12 ppm O3 were of sufficient magnitude to warrant the assessing of responses at a lower range of concentrations, i.e., 0.08, 0.10 and 0.12 ppm O3. Exposures consisted of six 50-min exercises (VE approximately equals 40 L/min), each followed by 10-min rest; a 35-min lunch break was included. When compared with exposures to 0.00 ppm, substantial pulmonary function decrements, respiratory symptoms and increases in nonspecific airway reactivity were observed at all three O3 concentrations. For example, decreases in FEV1 (P < 0.01) of 7%, 7% and 12% were observed at 0.08, 0.10 and 0.12 ppm O3, respectively. The ratios (P < 0.005) of PD100 observed in 0.00 ppm to that in O3 were 1.56 at 0.08 ppm, 1.89 at 0.10 ppm, and 2.21 at 0.12 ppm O3. It is concluded that exercise representative of a day of moderate to heavy work or play performed during exposures to O3 at levels and pattern often found in ambient air induced clinically meaningful pulmonary responses.
Notes
"Presented at the US-Dutch Scientific Symposium, Nijmegen, the Netherlands, May 9-13, 1988." "EPA/600/D-89/246." "PB90-129297." "Bibliography included." Microfiche.