Air quality in Hartford
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
7.5 µg/m³
WHO guideline 15
PM10
7.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 PM
💨
PM2.5 7.5 µg/m³
48Good
9:00 PM
💨
PM2.5 7 µg/m³
43Good
10:00 PM
💨
PM2.5 6 µg/m³
38Good
11:00 PM
💨
PM2.5 5.4 µg/m³
34Good
12:00 AM
💨
PM2.5 5.3 µg/m³
33Good
1:00 AM
💨
PM2.5 5.4 µg/m³
34Good
2:00 AM
💨
PM2.5 5.5 µg/m³
35Good
3:00 AM
💨
PM2.5 5.6 µg/m³
36Good
4:00 AM
💨
PM2.5 5.6 µg/m³
38Good
5:00 AM
💨
PM2.5 5.4 µg/m³
38Good
6:00 AM
💨
PM2.5 5.2 µg/m³
37Good
7:00 AM
💨
PM2.5 4.9 µg/m³
35Good
Next few days
daily max · US EPA AQI
Sun
💨
Moderate · UV High
83
Mon
💨
Moderate · UV High
96
Tue
💨
Moderate · UV Moderate
73
Wed
💨
Unhealthy · UV High
200
Thu
💨
Moderate · UV High
67