Air quality in South Riding
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
9.3 µg/m³
WHO guideline 15
PM10
10.2 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
1:00 PM
💨
PM2.5 9.3 µg/m³
47 Good
2:00 PM
💨
PM2.5 8.7 µg/m³
48 Good
3:00 PM
💨
PM2.5 8.1 µg/m³
50 Good
4:00 PM
💨
PM2.5 7.7 µg/m³
49 Good
5:00 PM
💨
PM2.5 7.9 µg/m³
46 Good
6:00 PM
💨
PM2.5 8.2 µg/m³
42 Good
7:00 PM
💨
PM2.5 8.4 µg/m³
35 Good
8:00 PM
💨
PM2.5 5.4 µg/m³
30 Good
9:00 PM
💨
PM2.5 2.5 µg/m³
29 Good
10:00 PM
💨
PM2.5 1.5 µg/m³
28 Good
11:00 PM
💨
PM2.5 1.9 µg/m³
28 Good
12:00 AM
💨
PM2.5 3.2 µg/m³
26 Good
Next few days daily max · US EPA AQI
Fri
💨
Good · UV Moderate
50
Sat
💨
Good · UV Moderate
35
Sun
💨
Moderate · UV Moderate
71
Mon
💨
Unhealthy for Sensitive Groups · UV Moderate
101
Tue
💨
Unhealthy for Sensitive Groups · UV Moderate
103
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain