Ottawa Air Quality
Real-time Air Quality Health Index (AQHI) for Ottawa. Updated hourly by Environment Canada.
About the AQHI
The Air Quality Health Index (AQHI) is a scale from 1 to 10+ designed by Environment and Climate Change Canada to help you understand what the air quality around you means for your health. It measures the combined health risk from three pollutants: ground-level ozone (O₃), fine particulate matter (PM2.5), and nitrogen dioxide (NO₂). Unlike traditional air quality indices that focus on pollution levels, the AQHI is specifically calibrated to reflect the health impact of air pollution.
Understanding the Scale
Data source: Environment and Climate Change Canada — GeoMet OGC API
Published under the Open Government Licence — Canada
AQHI values are updated hourly based on real-time monitoring station data from the Ottawa area.
Today's Events in Ottawa
Wheelers Maple – Pancake House & Sugar Bush
Year-round pancake house and maple experience featuring sugar bush tours, two museums, maple products, and seasonal activities in Lanark County.
613 Flea Market at Aberdeen Pavilion
Ottawa's largest indoor vintage and artisan market featuring 150 vendors offering antiques, vintage clothing, handmade goods, and one-of-a-kind finds.
Fulton's Sugar Bush – Maple Season 2026
Experience a sixth-generation family sugar bush with sleigh rides, maple taffy, walking trails, campfires, and certified organic maple products.
Drag the Archive: Photographs of Queer Gender Performance
A collaborative exhibition showcasing the life and work of drag performer Paul "Peaches Latour" Fournier and queer rights activist Philip Hannan through archival photography.
Ottawa Parent & Child Expo 2026
Ottawa's longest-running parenting and kids expo featuring demonstrations, play zones, character meet-and-greets, free entertainment, and activities for families.
Centretown Earth Day Festival 2026
A free Centretown community gathering in Dundonald Park with family activities, performances, environmental outreach, and electronics recycling.
Upcoming Events This Week
Trivia Tuesdays at The Barley Mow
Test your knowledge every Tuesday night at The Barley Mow! Grab your smartest friends (or the funniest ones) for trivia at 7pm.
Toddler Tuesdays at National Arts Centre
Interactive performing arts program for children aged 18 months - 5 years. Singing, dancing, games, story time and creative play with instructor Jesse Kahat.
Wheelers Maple – Pancake House & Sugar Bush
Year-round pancake house and maple experience featuring sugar bush tours, two museums, maple products, and seasonal activities in Lanark County.
Fulton's Sugar Bush – Maple Season 2026
Experience a sixth-generation family sugar bush with sleigh rides, maple taffy, walking trails, campfires, and certified organic maple products.
Canadian War Museum - Free Thursday Evenings
Free museum admission every Thursday evening with special exhibitions on Canadian military history. Reservations required.
Drag the Archive: Photographs of Queer Gender Performance
A collaborative exhibition showcasing the life and work of drag performer Paul "Peaches Latour" Fournier and queer rights activist Philip Hannan through archival photography.