Impact of acute temperature and air pollution exposures on adult lung function: A panel study of asthmatics

Individuals with respiratory conditions, such as asthma, are particularly susceptible to adverse health effects associated with higher levels of ambient air pollution and temperature. This study evaluates whether hourly levels of fine particulate matter (PM.sub.2.5) and dry bulb globe temperature (D...

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Bibliographic Details
Published in:PloS one 2022-06, Vol.17 (6), p.e0270412-e0270412
Main Authors: Evoy, Richard, Kincl, Laurel, Rohlman, Diana, Bramer, Lisa M, Dixon, Holly M, Hystad, Perry, Bae, Harold, Barton, Michael, Phillips, Aaron, Miller, Rachel L, Waters, Katrina M, Herbstman, Julie B, Anderson, Kim A
Format: Article
Language:English
Subjects:
Activity patterns
Air pollution
Air quality
Air temperature
Asthma
Asthmatics
Atmospheric pollution
Bronchodilators
Calibration
COVID-19
Ecology and Environmental Sciences
Emergency medical care
Enrollments
Exposure
Global positioning systems
GPS
Health aspects
Health risks
Longitudinal studies
Lungs
Medicine and Health Sciences
Nitrogen dioxide
Outdoor air quality
Particulate matter
Questionnaires
Reading
Research and Analysis Methods
Respiratory function
Spirometry
Summer
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Summary:Individuals with respiratory conditions, such as asthma, are particularly susceptible to adverse health effects associated with higher levels of ambient air pollution and temperature. This study evaluates whether hourly levels of fine particulate matter (PM.sub.2.5) and dry bulb globe temperature (DBGT) are associated with the lung function of adult participants with asthma. Global positioning system (GPS) location, respiratory function (measured as forced expiratory volume at 1 second (FEV.sub.1 )), and self-reports of asthma medication usage and symptoms were collected as part of the Exposure, Location, and Lung Function (ELF) study. Hourly ambient PM.sub.2.5 and DBGT exposures were estimated by integrating air quality and temperature public records with time-activity patterns using GPS coordinates for each participant (n = 35). The relationships between acute PM.sub.2.5, DBGT, rescue bronchodilator use, and lung function collected in one week periods and over two seasons (summer/winter) were analyzed by multivariate regression, using different exposure time frames. Short-term increases in PM.sub.2.5 were associated with increased rescue bronchodilator use, while DBGT was associated with higher lung function (i.e. FEV.sub.1). Further studies are needed to continue to elucidate the mechanisms of acute exposure to PM.sub.2.5 and DBGT on lung function in asthmatics.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0270412