Air quality in United States

Air quality in Alaska today

Updated Sun, 25 Oct 2026 19:43:35 GMT

Good: average US AQI 39 across 3 cities in Alaska Worst now: Anchorage (53); cleanest: Juneau (30).

Live US AQI, PM2.5 and ozone for cities across Alaska, compared with the United States average.

Right now the modelled air quality in Alaska averages a US AQI of 39 (Good) across the 3 cities we track. By category: 2 Good, 1 Moderate (of 3).

That is 11 points cleaner than the United States average of 50, ranking 13 of 51 states from cleanest to most polluted.

Anchorage has the worst air at 53 (PM2.5 13 µg/m³), and Juneau the cleanest at 30. No tracked city is above 100, so no group needs to change plans.

Alaska cities by AQI (most polluted first)

City	US AQI	Category	PM2.5 µg/m³	PM10 µg/m³	Ozone µg/m³
Anchorage	53	Moderate	12.9	13	11
Fairbanks	34	Good	7.5	8	26
Juneau	30	Good	5.9	6	53

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.