Effects of ozone exposure: a comparison between oral and nasal breathing

Journal Article · Thu Sep 01 00:00:00 EDT 1988 · Arch. Environ. Health; (United States)

DOI:https://doi.org/10.1080/00039896.1988.9934949· OSTI ID:6597343

Hynes, B; Silverman, F; Cole, P; Corey, P

Mode of inhalation, by nose or by mouth, as a determinant of pulmonary toxicity to acute inhalant exposure has been investigated incompletely. This communication addresses whether there are significant differences in toxic pulmonary responses to acute ozone (O/sub 3/) exposure between differing modes of inhalation (nasal vs. oral breathing). Changes in the results of pulmonary function tests and symptomatology of healthy young adults were compared following both exclusive nose and exclusive mouth breathing during a 30-min exposure to approximately 0.4 ppm O/sub 3/ under conditions of moderate continuous exercise. In this single-blind, randomized, crossover study, no significant differences in either the results of pulmonary function tests or in symptomatology were found between the two modes of inhalation.

• Research Organization: Univ. of Toronto, Ontario (Canada)
• OSTI ID: 6597343
• Journal Information: Arch. Environ. Health; (United States), Journal Name: Arch. Environ. Health; (United States) Vol. 43:5; ISSN AEHLA
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACUTE EXPOSURE
AIR POLLUTION
ANIMALS
BODY
BODY AREAS
COMPARATIVE EVALUATIONS
DYNAMIC FUNCTION STUDIES
FACE
HEAD
INHALATION
INTAKE
MAMMALS
MAN
NOSE
OZONE
POLLUTION
PRIMATES
RESPIRATION
RESPIRATORY SYSTEM
TOXICITY
VERTEBRATES