Air quality in Winchester
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
11.2 µg/m³
WHO guideline 15
PM10
12.7 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
10:00 PM
💨
PM2.5 11.2 µg/m³
47 Good
11:00 PM
💨
PM2.5 12.3 µg/m³
51 Moderate
12:00 AM
💨
PM2.5 13.2 µg/m³
53 Moderate
1:00 AM
💨
PM2.5 14.1 µg/m³
55 Moderate
2:00 AM
💨
PM2.5 14.7 µg/m³
56 Moderate
3:00 AM
💨
PM2.5 15 µg/m³
57 Moderate
4:00 AM
💨
PM2.5 15.1 µg/m³
57 Moderate
5:00 AM
💨
PM2.5 15.5 µg/m³
58 Moderate
6:00 AM
💨
PM2.5 16.7 µg/m³
61 Moderate
7:00 AM
💨
PM2.5 19 µg/m³
66 Moderate
8:00 AM
💨
PM2.5 19.3 µg/m³
66 Moderate
9:00 AM
💨
PM2.5 11.1 µg/m³
46 Good
Next few days daily max · US EPA AQI
Sat
💨
Moderate · UV Moderate
51
Sun
💨
Moderate · UV Moderate
66
Mon
💨
Moderate · UV Low
63
Wed
💨
Moderate · UV Moderate
55
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain