Air quality in Snowdon
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
9.5 µg/m³
WHO guideline 15
PM10
9.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 AM
💨
PM2.5 9.5 µg/m³
40Good
10:00 AM
💨
PM2.5 9.5 µg/m³
40Good
11:00 AM
💨
PM2.5 9.5 µg/m³
40Good
12:00 PM
💨
PM2.5 9.5 µg/m³
44Good
1:00 PM
💨
PM2.5 8.9 µg/m³
49Good
2:00 PM
💨
PM2.5 7.5 µg/m³
53Moderate
3:00 PM
💨
PM2.5 6.7 µg/m³
53Moderate
4:00 PM
💨
PM2.5 6.2 µg/m³
50Good
5:00 PM
💨
PM2.5 6.2 µg/m³
46Good
6:00 PM
💨
PM2.5 7.3 µg/m³
40Good
7:00 PM
💨
PM2.5 9.3 µg/m³
39Good
8:00 PM
💨
PM2.5 10.1 µg/m³
42Good
Next few days
daily max · US EPA AQI
Sat
💨
Moderate · UV High
70
Sun
💨
Good · UV Moderate
49
Mon
💨
Good · UV Moderate
34
Tue
💨
Good · UV Moderate
31