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Main Title Respiratory Responses to Repeated Prolonged Exposure to 0.12 ppm Ozone.
Author Folinsbee, L. J. ; Horstman, D. H. ; Kehrl, H. R. ; Harder, S. ; Abdul-Salaam, S. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. Clinical Research Branch. ;ABB Environmental Services, Inc., Chapel Hill, NC.
Publisher cJan 94
Year Published 1994
Report Number EPA/600/J-94/330;
Stock Number PB94-202132
Additional Subjects Ozone ; Air pollution effects(Humans) ; Lung ; Exposure ; Airway resistance ; Vital capacity ; Signs and symptoms ; Spirometry ; Exercise(Physiology) ; Methacholine chloride ; Respiratory function tests ; Dose-response relationships ; Toxicity ; Nasal lavage fluid ; Plethysmography ; Reprints ; Aerosol bolus
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NTIS  PB94-202132 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
Abstract Repeated exposures to high concentrations of ozone results first in augmentation and then attenuation of pulmonary response in humans. To determine the effects of repeated prolonged low concentration ozone exposure, we exposed 17 healthy, non-smoking males to 0.12 ppm ozone for 6.6 h on five consecutive days. Subjects were also exposed once to filtered air. Volunteers exercised at a ventilation of -39 L/min for 50 min of each hour during the exposure. Spirometry, plethysmography, and symptom responses were obtained before and after each exposure. Nasal lavage and aerosol bolus dispersion were obtained before and after each exposure. Spirometry decreased and symptoms increased on the first day. Responses were less on the second day compared to the first, and were absent, compared to control, on the subsequent three days of ozone exposure.
Supplementary Notes Pub. in American Jnl. of Respiratory and Critical Care Medicine, v149 n1 p98-105 Jan 94. Prepared in cooperation with ABB Environmental Services, Inc., Chapel Hill, NC.
Highlights Notes %AUT:P. J. /Ives
NTIS Title Notes Journal article.
Title Annotations Reprint: Respiratory Responses to Repeated Prolonged Exposure to 0.12 ppm Ozone.
Category Codes 68A; 57S; 57Y
NTIS Prices PC A02/MF A01
Primary Description 600/10
Document Type NT
Cataloging Source NTIS/MT
Control Number 427627641
Origin NTIS
Type CAT