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AIR QUALITY DATA ANALYSIS SYSTEM FOR INTERRELATING EFFECTS, STANDARDS, AND NEEDED SOURCE REDUCTION: PART II - A LOGNORMAL MODEL OF LUNG FUNCTION DECREASED BY O3 EXPOSURE
Citation:
Larsen, R., W. McDonnell, D. Horstman, AND L. Folinsbee. AIR QUALITY DATA ANALYSIS SYSTEM FOR INTERRELATING EFFECTS, STANDARDS, AND NEEDED SOURCE REDUCTION: PART II - A LOGNORMAL MODEL OF LUNG FUNCTION DECREASED BY O3 EXPOSURE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-91/094 (NTIS PB91200287).
Description:
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). ognormal 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. he exercise level used was probably comparable to heavy manual labor. he longest O3 exposure studied was 6 h. xtrapolating 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.