Particulate matter intake fractions for vehicular emissions at elementary schools in Hamilton, Canada: an assessment of outdoor and indoor exposure

Air pollution around schools has been considered a crucial concern worldwide, as children are at school for a large part of the day. A growing body of evidence finds that schools are located in areas with high levels of air pollutants with significant contributions from motor vehicles. Determining children exposure to air pollutants at schools is crucial for disease prevention and control. In this paper, we evaluated PM2.5 intake fractions for …