RELIABLE SOURCE
Trusted air quality data since 1995
WCAS delivers real-time data, regulatory reporting, educational resources, and expert guidance to support informed choices.
Real-Time Data
Air Quality Health Index (AQHI)
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Air Quality Health Index:
The clearest way to get a read on your air.
The Air Quality Health Index (AQHI) is a scale that shows the health risks associated with outdoor air quality. It provides a number and related health risk category to help you understand the potential impacts of air pollution on your health.
Community-Focused
What's new at WCAS?
Stay informed about upcoming events, webinars, and news in your Airshed.
WCAS is 30!
Learn about how WCAS came to be, and how it has led to greater access to air quality information with the adoption of the Airshed model across Alberta.
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Newsletter: January 2026
Stagnant Air, Municipal Tools, and the Next-Gen AQHI Grid This month, we ...
Clean Air Webinar — Air Quality 101 for Municipal Leaders
Join West Central Airshed Society and Alberta Capital Airshed present Air Quality 101 ...
Newsletter: December 2025
Year In Review: Celebrating 30 Years, Membership, and Seasonal Air Quality Trends ...
Newsletter: October 2025
New Monitoring in Jasper, Indigenous Partnerships, and Halloween AQHI Tips This month, ...
Newsletter: January 2026
Stagnant Air, Municipal Tools, and the Next-Gen AQHI Grid This month, we ...
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Empowering communities with air quality information
From air quality monitoring and reporting, to public engagement and education, WCAS is an integral part of Western Alberta communities. Learn about the Alberta Airshed model, and how WCAS provides value to local residents, industry, and government.
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