Air pollution from Alberta’s transportation sector is a growing concern, impacting both environmental and public health. The Clean Air Strategic Alliance (CASA) launched the Roadside Optical Vehicle Emissions Reporter (ROVER) III Project to tackle this issue by gathering critical data on vehicle emissions across the province. This innovative initiative used remote sensing technology to measure emissions from nearly 50,000 light-duty gasoline vehicles and over 6,000 heavy-duty diesel vehicles, providing much-needed insights into Alberta’s air quality challenges.
The study revealed that 30% of heavy-duty diesel vehicles and 15% of light-duty vehicles were emitting pollutants at levels ten times higher than expected, largely due to malfunctioning or tampered emission control systems. These excess emissions contribute to severe health risks, with projections estimating 419 premature deaths in Alberta over the next decade if left unaddressed.
By identifying high-emitting vehicles and highlighting regulatory gaps, CASA’s findings lay the groundwork for stronger emissions management policies and cleaner air for Albertans. Their work directly benefits vulnerable communities—particularly children, the elderly, and those with respiratory conditions—who are most affected by air pollution. With a focus on science-driven action and collaborative problem-solving, the ROVER III Project is paving the way for a healthier, more sustainable future.
