Air quality in Woburn
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
15.7 µg/m³
WHO guideline 15
PM10
15.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 PM
💨
PM2.5 15.7 µg/m³
59Moderate
10:00 PM
💨
PM2.5 19.2 µg/m³
66Moderate
11:00 PM
💨
PM2.5 19.8 µg/m³
67Moderate
12:00 AM
💨
PM2.5 18 µg/m³
63Moderate
1:00 AM
💨
PM2.5 15.3 µg/m³
58Moderate
2:00 AM
💨
PM2.5 11.5 µg/m³
48Good
3:00 AM
💨
PM2.5 8.8 µg/m³
37Good
4:00 AM
💨
PM2.5 7.3 µg/m³
30Good
5:00 AM
💨
PM2.5 6.6 µg/m³
28Good
6:00 AM
💨
PM2.5 6.3 µg/m³
26Good
7:00 AM
💨
PM2.5 6.8 µg/m³
28Good
8:00 AM
💨
PM2.5 8.7 µg/m³
36Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
81
Fri
💨
Moderate · UV High
63
Sat
💨
Good · UV Moderate
38
Sun
💨
Moderate · UV Moderate
64
Mon
💨
Moderate · UV High
62