The community of Fort McKay in northern Alberta, Canada, is situated among three large oil sand extraction and refining facilities. Prior to 2002, two of these facilities produced in excess of 500,000 bpd of synthetic oil. The closeness of these facilities has raised concerns among native residents regarding community air quality. In response to these concerns a baseline air quality study was undertaken prior to commissioning of the third facility. Both ambient and outdoor levels of PM10 were low in comparison to levels reported for other Alberta, national, and international locations. Oil sand operations were predominantly located south, southeast, and southwest of Fort McKay and these activities did not have an observable influence on ambient PM10 levels during the fall and winter monitoring periods. Indoor concentrations were highly variable compared to ambient PM10 concentrations indicating that indoor sources rather than ambient sources had a significant influence on indoor concentrations. This is an abstract of a paper presented at the 98th AWMA Annual Conference and Exhibition (Minneapolis, MN 6/21-24/2005).