Bozeman Air Quality Index (AQI) Today

Air quality in Bozeman

The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.

US AQI · EPA

Good

PM2.5

2 µg/m³

WHO guideline 15

PM10

2.2 µg/m³

WHO guideline 45

NO₂ · O₃

4 · 64

µg/m³

Hour by hour (12h)

US EPA AQI

3:00 AM 💨 PM2.5 2 µg/m³

30Good

4:00 AM 💨 PM2.5 2 µg/m³

30Good

5:00 AM 💨 PM2.5 1.9 µg/m³

29Good

6:00 AM 💨 PM2.5 1.9 µg/m³

27Good

7:00 AM 💨 PM2.5 2.1 µg/m³

26Good

8:00 AM 💨 PM2.5 2.3 µg/m³

26Good

9:00 AM 💨 PM2.5 2 µg/m³

31Good

10:00 AM 💨 PM2.5 1.4 µg/m³

38Good

11:00 AM 💨 PM2.5 1.2 µg/m³

43Good

12:00 PM 💨 PM2.5 1.1 µg/m³

45Good

1:00 PM 💨 PM2.5 0.8 µg/m³

46Good

2:00 PM 💨 PM2.5 0.7 µg/m³

45Good

Next few days

daily max · US EPA AQI

Sat 💨 Good · UV Low

Sun 💨 Good · UV Low

Mon 💨 Good · UV Low

Tue 💨 Good · UV Low

Wed 💨 Good · UV Low

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Bozeman, MT Air Quality

Air quality in Bozeman

Hour by hour (12h)

Next few days

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