Air quality in Fitchburg
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.
PM2.5
21.2 µg/m³
WHO guideline 15
PM10
21.4 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
1:00 AM
💨
PM2.5 21.2 µg/m³
70 Moderate
2:00 AM
💨
PM2.5 22.1 µg/m³
72 Moderate
3:00 AM
💨
PM2.5 23.1 µg/m³
74 Moderate
4:00 AM
💨
PM2.5 23.9 µg/m³
76 Moderate
5:00 AM
💨
PM2.5 25.1 µg/m³
78 Moderate
6:00 AM
💨
PM2.5 25.9 µg/m³
80 Moderate
7:00 AM
💨
PM2.5 26.4 µg/m³
81 Moderate
8:00 AM
💨
PM2.5 25.7 µg/m³
80 Moderate
9:00 AM
💨
PM2.5 20.8 µg/m³
69 Moderate
10:00 AM
💨
PM2.5 16.4 µg/m³
60 Moderate
11:00 AM
💨
PM2.5 11.7 µg/m³
49 Good
12:00 PM
💨
PM2.5 9.1 µg/m³
38 Good
Next few days daily max · US EPA AQI
Sun
💨
Moderate · UV Low
81
Mon
💨
Moderate · UV Low
75
Tue
💨
Moderate · UV Moderate
71
Wed
💨
Moderate · UV High
70
Thu
💨
Good · UV Moderate
27
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain