Exposure to air pollution in indoor walkways of a suburban city

Indoor walkways are often connected to sources of indoor pollutants such as retail stores, restaurants, and parking garages. To measure the air quality within indoor skyways and subways in downtown Rochester, MN, a mobile monitoring platform was deployed at least once per month for one year. Ninetee...

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Bibliographic Details
Published in:Building and environment 2020-10, Vol.183, p.107171, Article 107171
Main Authors: Li, Linhao, Mullan, Aidan F., Clements, Nicholas
Format: Article
Language:English
Subjects:
Air pollutant exposure
Air pollution
Air pollution measurements
Air quality
Air quality measurements
Carbon dioxide
Environmental impact
Exposure
Indoor air pollution
Indoor air quality
Indoor environments
Indoor walkways
Inhalation
Mobile monitoring
Parking facilities
Particulate matter
Pollutants
Pollution levels
Pollution sources
Respiration
Retail stores
Segments
Spatial analysis
Spatiotemporal variability
Storefronts
Subways
Walking
Walkways
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Summary:Indoor walkways are often connected to sources of indoor pollutants such as retail stores, restaurants, and parking garages. To measure the air quality within indoor skyways and subways in downtown Rochester, MN, a mobile monitoring platform was deployed at least once per month for one year. Nineteen segments of each walkway type were measured for 5-min intervals twice per sampling day. Adjacent storefront or building type did not significantly impact air pollution concentrations measured in walkway segments; however, trends were observed in some spatial comparisons. Segments adjacent to restaurants had elevated PM2.5, TVOC, and CO2 concentrations, while elevated O3 and PM10-2.5 concentrations occurred adjacent to parking garages and streets. Inhalation dose was simulated for a range of walking routes for a baseline distribution of exposure, estimated for a healthy middle-aged adult male walking all identified routes. Compared to this baseline case, exposure increased by 179–457% (p 
ISSN:0360-1323
1873-684X
DOI:10.1016/j.buildenv.2020.107171