Air quality in Madison
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
4.2 µg/m³
WHO guideline 15
PM10
4.3 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
5:00 AM
💨
PM2.5 4.2 µg/m³
29Good
6:00 AM
💨
PM2.5 4 µg/m³
28Good
7:00 AM
💨
PM2.5 3.8 µg/m³
27Good
8:00 AM
💨
PM2.5 3.9 µg/m³
29Good
9:00 AM
💨
PM2.5 4.3 µg/m³
34Good
10:00 AM
💨
PM2.5 4.4 µg/m³
42Good
11:00 AM
💨
PM2.5 4.4 µg/m³
49Good
12:00 PM
💨
PM2.5 4.6 µg/m³
60Moderate
1:00 PM
💨
PM2.5 5.7 µg/m³
73Moderate
2:00 PM
💨
PM2.5 5.8 µg/m³
81Moderate
3:00 PM
💨
PM2.5 6.4 µg/m³
86Moderate
4:00 PM
💨
PM2.5 7.5 µg/m³
88Moderate
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV Moderate
88
Sat
💨
Moderate · UV High
61
Sun
💨
Good · UV Very high
46
Mon
💨
Moderate · UV Very high
63
Tue
💨
Good · UV Very high
35