Air quality in Guilford Siding
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
9.7 µg/m³
WHO guideline 15
PM10
9.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 AM
💨
PM2.5 9.7 µg/m³
40Good
11:00 AM
💨
PM2.5 8.4 µg/m³
49Good
12:00 PM
💨
PM2.5 7.6 µg/m³
55Moderate
1:00 PM
💨
PM2.5 7.2 µg/m³
56Moderate
2:00 PM
💨
PM2.5 7 µg/m³
55Moderate
3:00 PM
💨
PM2.5 7 µg/m³
56Moderate
4:00 PM
💨
PM2.5 7 µg/m³
56Moderate
5:00 PM
💨
PM2.5 6.9 µg/m³
51Moderate
6:00 PM
💨
PM2.5 6.8 µg/m³
47Good
7:00 PM
💨
PM2.5 6.9 µg/m³
41Good
8:00 PM
💨
PM2.5 7.7 µg/m³
35Good
9:00 PM
💨
PM2.5 8 µg/m³
33Good
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
62
Sat
💨
Moderate · UV High
80
Sun
💨
Moderate · UV Very high
85
Mon
💨
Moderate · UV High
98
Tue
💨
No data · UV High
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