Air quality in Petersburg
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
7.1 µg/m³
WHO guideline 15
PM10
7.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
12:00 PM
💨
PM2.5 7.1 µg/m³
58Moderate
1:00 PM
💨
PM2.5 7.1 µg/m³
58Moderate
2:00 PM
💨
PM2.5 6.8 µg/m³
58Moderate
3:00 PM
💨
PM2.5 6.6 µg/m³
58Moderate
4:00 PM
💨
PM2.5 6.4 µg/m³
58Moderate
5:00 PM
💨
PM2.5 6.9 µg/m³
53Moderate
6:00 PM
💨
PM2.5 7 µg/m³
48Good
7:00 PM
💨
PM2.5 7 µg/m³
44Good
8:00 PM
💨
PM2.5 7.2 µg/m³
41Good
9:00 PM
💨
PM2.5 6.8 µg/m³
41Good
10:00 PM
💨
PM2.5 4.8 µg/m³
43Good
11:00 PM
💨
PM2.5 3.5 µg/m³
43Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV Moderate
58
Sat
💨
Moderate · UV High
55