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.
When air quality is poor, head indoors
Best Museums in Ottawa
National Gallery, History Museum, War Museum, and more — great indoor days when air quality is poor.
Read moreIndoorBest Escape Rooms in Ottawa
Challenge your team in air-filtered indoor spaces. Perfect for smoky or high-AQHI days.
Read moreIndoorBest Arcades in Ottawa
Retro arcades, bar games, and entertainment complexes — indoor fun when the air isn’t great.
Read moreToday's Events in Ottawa
EEPMON
Come to the Jackson Café to discover two large murals, featuring the digital artwork of Eric Chan (aka eepmon)! In Futur…
Hard Rock Cafe Ottawa Live Performances
Every Friday and Saturday evening Hard Rock Cafe has FREE live concerts starting at 9:30PM
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 right…
becoming|un|becoming: deepening relations
The artworks by Leah Decter, a white settler artist and scholar, offer an opportunity to reflect on repair and care of r…
Intertwined
In a time marked by our increasingly complex relationship to the natural world, Intertwined brings together artists for…
English Conversation Group / Groupe de conversation en angla…
Join our free English Conversation Group to practice speaking in English in a relaxed and friendly environment. All leve…
Upcoming Events This Week
EEPMON
Come to the Jackson Café to discover two large murals, featuring the digital artwork of Eric Chan (aka eepmon)! In Futur…
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…
Toddler Tuesdays at National Arts Centre
Interactive performing arts program for children aged 18 months - 5 years. Singing, dancing, games, story time and creat…
Hard Rock Cafe Ottawa Live Performances
Every Friday and Saturday evening Hard Rock Cafe has FREE live concerts starting at 9:30PM
Art n Tell – Monthly Artist Showcase
Monthly open mic for visual and performing artists of all disciplines and skill levels to showcase their work in a suppo…
Canadian War Museum - Free Thursday Evenings
Free museum admission every Thursday evening with special exhibitions on Canadian military history. Reservations require…