Air quality in Key West
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
10.3 µg/m³
WHO guideline 15
PM10
18.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 AM
💨
PM2.5 10.3 µg/m³
43Good
1:00 AM
💨
PM2.5 10.1 µg/m³
42Good
2:00 AM
💨
PM2.5 9.8 µg/m³
41Good
3:00 AM
💨
PM2.5 9.4 µg/m³
39Good
4:00 AM
💨
PM2.5 8.8 µg/m³
37Good
5:00 AM
💨
PM2.5 8.2 µg/m³
34Good
6:00 AM
💨
PM2.5 7.6 µg/m³
32Good
7:00 AM
💨
PM2.5 7.1 µg/m³
30Good
8:00 AM
💨
PM2.5 6.8 µg/m³
28Good
9:00 AM
💨
PM2.5 6.7 µg/m³
28Good
10:00 AM
💨
PM2.5 6.8 µg/m³
28Good
11:00 AM
💨
PM2.5 7 µg/m³
29Good
Next few days
daily max · US EPA AQI
Sat
💨
Good · UV Very high
43
Sun
💨
Moderate · UV Very high
54
Mon
💨
Moderate · UV Very high
56
Tue
💨
Good · UV Extreme
43