Record Display for the EPA National Library Catalog
RECORD NUMBER: 3 OF 29| Main Title | Air Quality Data Analysis System for Interrelating Effects, Standards, and Needed Source Reductions: Part 11. A Lognormal Model Relating Human Lung Function Decrease to O3 Exposure. | |||||||||||
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| Author | Larsen, R. I. ; McDonnell, W. F. ; Horstman, D. H. ; Folinsbee., L. J. ; | |||||||||||
| CORP Author | Health Effects Research Lab., Research Triangle Park, NC. ;ABB Environmental Services, Inc., Chapel Hill, NC. | |||||||||||
| Publisher | c1991 | |||||||||||
| Year Published | 1991 | |||||||||||
| Report Number | EPA/600/J-91/094; | |||||||||||
| Stock Number | PB91-200287 | |||||||||||
| Additional Subjects | Air quality ; Air pollution effects(Humans) ; Ozone ; Mathematical models ; Exposure ; Biological effects ; Linear regression ; Regression analysis ; Lung ; Respiratory function tests ; Respiratory airflow ; Concentration(Composition) ; Data processing ; Reprints ; | |||||||||||
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| Collation | 8p | |||||||||||
| Abstract | Forced expiratory volume in 1 second (FEV1) was measured in 21 men exercising while exposed to four O3 concentrations (0.0, 0.08, 0.10, and 0.12 ppm). A lognormal multiple linear regression model was fitted to their mean FEV1 measurements to predict FEV1 percent decrease as a function of O3 concentration and exposure duration. The exercise level used was probably comparable to heavy manual labor. The longest O3 exposure studied was 6 h. Extrapolating cautiously to an 8-h workday of heavy manual labor, the model predicts that O3 concentrations of 0.08, 0.10, and 0.12 ppm would decrease FEV1 by 9, 15, and 20 percent respectively. (Copyright (c) 1991 Air & Waste Management Association.) |