A former environmental manager in Fort McKay, Jean L’Hommecourt, often observes a haze of thick dust hovering over the Athabasca River near her home. Situated amidst oilsands operations about 55 kilometers north of Fort McMurray, Alta., the community is enveloped by surface mines and industrial activities.
L’Hommecourt describes a discolored sky when looking north, attributing it to dust blowing in from the mines. New research published in Atmospheric Pollution Research reveals that Fort McKay experiences significantly elevated levels of dust pollution, surpassing regulatory air quality standards.
The study, led by University of Toronto PhD candidate Kristin Iorio and independent researchers in Alberta, highlights the community’s struggles with severe dustfall events caused by large dust particles. These events, missed by typical monitoring methods, impose a health risk on Fort McKay residents and other communities impacted by intensive resource development.
Monthly dustfall volumes in Fort McKay exceeded Alberta Ambient Air Quality Guidelines numerous times during the 24-month study period, surpassing acceptable thresholds nearly 20% of the time. Researchers utilized various methods, including dustfall buckets and ambient sampling, to assess dust exposure in the region.
While Alberta regulates fine particulate matter (PM2.5), it lacks specific rules for larger particles like PM10, which can originate from industrial activities such as mining. The lack of oversight on these coarse particles poses health risks, emphasizing the need for updated monitoring practices and stricter regulations.
The study advocates for enhanced monitoring and real-time tracking in Fort McKay to pinpoint dust sources and alert residents during severe pollution events. Experts emphasize the importance of continuous monitoring to address episodic industrial pollution effectively.
Despite concerns raised by community leaders and researchers, both the Alberta Energy Regulator and the Fort McKay First Nation declined to comment on the study. Alberta Environment officials acknowledged the findings and pledged to consider them in evaluating potential changes to monitoring approaches and air quality guidelines.
Longtime residents like L’Hommecourt express deep concerns about the community’s health, underscoring the urgency for improved dust monitoring and regulatory measures in Fort McKay.