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Department of Public Health, Brigham Young University, Provo, USA
*Corresponding author: James DJohnston, Associate Professor, 2045 Life Sciences Building, Department of Health Science, Brigham Young University, Provo, Utah, USA
Submission: January 7, 2021;Published: January 27, 2021
The purpose of this pilot study was to characterize arrival and departure environments based on fine particulate matter (PM2.5) air pollution concentrations at two elementary schools. Ambient PM2.5 was measured at the school front door, arrival/departure areas, street adjacent to the school, and in accompanying play fields (background). The overall average ratio of PM2.5 to background at School-A (1.64) was less than at School-B (1.69) (t(35721)=2.52, p=0.01). PM2.5 to background ratios were higher in the morning (1.80) than afternoon (1.43) (t(36434)=21.13, p<0.001). This study found a “plume” of PM2.5 centered in the arrival/departure location at both schools. For morning PM2.5 measures, arrival/departure locations were the highest at both schools, followed by front door, whereas, in the afternoon, street measures were the highest. Solutions include encouraging idle-free zones, carpooling and encouraging active travel along low-traffic routes.
Keywords: Particulate pollution; Fine particulate matter; School health; Children’s environmental health; Commuting exposure
Abbreviations: PM2.5 -Fine particulate matter
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