Air quality in Rochester Hills
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
10.9 µg/m³
WHO guideline 15
PM10
11.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 PM
💨
PM2.5 10.9 µg/m³
45Good
9:00 PM
💨
PM2.5 13.2 µg/m³
53Moderate
10:00 PM
💨
PM2.5 14.1 µg/m³
55Moderate
11:00 PM
💨
PM2.5 12.7 µg/m³
52Moderate
12:00 AM
💨
PM2.5 8.7 µg/m³
36Good
1:00 AM
💨
PM2.5 9.6 µg/m³
40Good
2:00 AM
💨
PM2.5 9.3 µg/m³
39Good
3:00 AM
💨
PM2.5 6.9 µg/m³
29Good
4:00 AM
💨
PM2.5 3.1 µg/m³
17Good
5:00 AM
💨
PM2.5 4.4 µg/m³
19Good
6:00 AM
💨
PM2.5 7 µg/m³
29Good
7:00 AM
💨
PM2.5 8.6 µg/m³
36Good
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
75
Fri
💨
Moderate · UV High
51