What is the air quality in Altoona PA?

Altoona PA, United States of America has an annual US AQI of 51 (Reasonable) and average PM2.5 of 10.5 µg/m³, ranking #870 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Altoona PA?

October is typically the cleanest month (AQI 42) and July the most polluted (AQI 60).

Where does Altoona PA's air quality data come from?

PM2.5: 1998–2026 (monitors 2010–2026, satellite 1998–2010, 2019; 2026 provisional (AirNow)). Measured by government monitoring stations. Full sources are on the methodology page.

Altoona PA, United States of America — Air Quality & Clean City Guide 2026

Altoona PA Air Quality Data

Global rank	City	Continent	AQI	PM2.5
870	Altoona PA, United States of America	North America	AQI 51	PM2.5 10.5 µg/m³