Air quality in Winston-Salem
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
5.7 µg/m³
WHO guideline 15
PM10
5.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
7:00 AM
💨
PM2.5 5.7 µg/m³
24Good
8:00 AM
💨
PM2.5 5.6 µg/m³
25Good
9:00 AM
💨
PM2.5 5.2 µg/m³
34Good
10:00 AM
💨
PM2.5 5.4 µg/m³
44Good
11:00 AM
💨
PM2.5 5.7 µg/m³
60Moderate
12:00 PM
💨
PM2.5 6.4 µg/m³
76Moderate
1:00 PM
💨
PM2.5 7.2 µg/m³
85Moderate
2:00 PM
💨
PM2.5 7.9 µg/m³
88Moderate
3:00 PM
💨
PM2.5 9.1 µg/m³
85Moderate
4:00 PM
💨
PM2.5 11 µg/m³
78Moderate
5:00 PM
💨
PM2.5 10.7 µg/m³
68Moderate
6:00 PM
💨
PM2.5 10.8 µg/m³
56Moderate
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV Moderate
88
Sun
💨
Good · UV Very high
45
Mon
💨
Good · UV Very high
50
Tue
💨
Good · UV Very high
50