Journal article

Impact of microenvironments and personal activities on personal PM2.5 exposures among asthmatic children

Keith Van Ryswyk, Amanda J Wheeler, Lance Wallace, Jill Kearney, Hongyu You, Ryan Kulka, Xiaohong Xu

JOURNAL OF EXPOSURE SCIENCE AND ENVIRONMENTAL EPIDEMIOLOGY | NATURE PUBLISHING GROUP | Published : 2014

Abstract

Personal activity patterns have often been suggested as a source of unexplained variability when comparing personal particulate matter (PM2.5) exposure to modeled data using central site or microenvironmental data. To characterize the effect of personal activity patterns on asthmatic children's personal PM2.5 exposure, data from the Windsor, Ontario Exposure Assessment Study were analyzed. The children spent on an average 67.1±12.7% (winter) and 72.3±22.6% (summer) of their time indoors at home where they received 51.7±14.8% and 66.3±19.0% of their PM2.5 exposure, respectively. In winter, 17.7±5.9% of their time was spent at school where they received 38.6±11.7% of their PM2.5 exposure. In s..

View full abstract