Journal article

Factors influencing variability in the infiltration of PM2.5 mass and its components

M MacNeill, L Wallace, J Kearney, RW Allen, K Van Ryswyk, S Judek, X Xu, A Wheeler



The infiltration of particles into homes can vary seasonally, between homes in a community and between communities. However, few studies have examined the day to day variability across multiple homes. We used continuous data collected from a 2-year (2005-2006) personal exposure study conducted in Windsor, ON to estimate daily infiltration factors (F inf) for fine particulate matter (PM 2.5), Black Carbon (BC), and ultrafine particles (UFP) as well as the ambient personal exposure factor (F pex) for PM 2.5. In addition, the daily ambient and non-ambient generated components of indoor and personal concentrations were estimated.Median daily F inf estimates ranged from 0.26 to 0.36 across season..

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Funding Acknowledgements

We would like to thank the study participants and Health Canada staff Ryan Kulka and Hongyu You. We would also like the thank Alice Grgicak-Mannion (Great Lakes Institute for Environmental Research, University of Windsor) for the map of home age by residential parcel; Dr. Markey Johnson for her help with the analyses; and Nina Dobbin (Clark) and Cheryl Khoury for conducting the internal review. Funding for this work was provided by the Border Air Quality Strategy (BAQS) and the Clean Air Regulatory Agenda (CARA).