Air quality in Canada

Air quality in Alberta today

Updated Sun, 25 Oct 2026 16:30:53 GMT

Good: average US AQI 29 across 7 cities in Alberta Worst now: Calgary (40); cleanest: Red Deer (22).

Live US AQI, PM2.5 and ozone for cities across Alberta, compared with the Canada average.

Right now the modelled air quality in Alberta averages a US AQI of 29 (Good) across the 7 cities we track. By category: 7 Good (of 7).

That is 14 points cleaner than the Canada average of 43, ranking 2 of 10 provinces from cleanest to most polluted.

Calgary has the worst air at 40 (PM2.5 2.7 µg/m³), and Red Deer the cleanest at 22. No tracked city is above 100, so no group needs to change plans.

Alberta cities by AQI (most polluted first)

City	US AQI	Category	PM2.5 µg/m³	PM10 µg/m³	Ozone µg/m³
Calgary	40	Good	2.7	3	61
Fort McMurray	34	Good	0.8	1	75
Edmonton	32	Good	3.9	5	70
Lethbridge	24	Good	2.6	3	57
Sherwood Park	24	Good	3	4	73
Grande Prairie	24	Good	3.5	4	64
Red Deer	22	Good	3.4	4	68

US AQI	Category	What it means
0-50	Good	Air quality is satisfactory and poses little or no risk; a good time for outdoor activity.
51-100	Moderate	Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors.
101-150	Unhealthy for Sensitive Groups	People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors.
151-200	Unhealthy	Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed.
201-300	Very Unhealthy	Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors.
301-500	Hazardous	Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500.

Modelled by CAMS (Copernicus) via Open-Meteo, refreshed twice a day; read hour by hour from the forecast.