Air quality in Acton
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
5.4 µg/m³
WHO guideline 15
PM10
5.4 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
3:00 AM
💨
PM2.5 5.4 µg/m³
23 Good
4:00 AM
💨
PM2.5 5.6 µg/m³
23 Good
5:00 AM
💨
PM2.5 5.5 µg/m³
23 Good
6:00 AM
💨
PM2.5 5.2 µg/m³
22 Good
7:00 AM
💨
PM2.5 5.6 µg/m³
23 Good
8:00 AM
💨
PM2.5 6.2 µg/m³
26 Good
9:00 AM
💨
PM2.5 4.3 µg/m³
19 Good
10:00 AM
💨
PM2.5 3.9 µg/m³
26 Good
11:00 AM
💨
PM2.5 4.1 µg/m³
31 Good
12:00 PM
💨
PM2.5 4.4 µg/m³
34 Good
1:00 PM
💨
PM2.5 4.5 µg/m³
35 Good
2:00 PM
💨
PM2.5 4.5 µg/m³
37 Good
Next few days daily max · US EPA AQI
Sat
💨
Moderate · UV Moderate
94
Sun
💨
Moderate · UV Low
96
Mon
💨
Moderate · UV Low
71
Tue
💨
Moderate · UV Moderate
56
Wed
💨
Good · UV Moderate
28
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain