Air quality in Alta Sierra
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
8.6 µg/m³
WHO guideline 15
PM10
9.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
4:00 AM
💨
PM2.5 8.6 µg/m³
36Good
5:00 AM
💨
PM2.5 8.6 µg/m³
36Good
6:00 AM
💨
PM2.5 8.6 µg/m³
36Good
7:00 AM
💨
PM2.5 8.5 µg/m³
35Good
8:00 AM
💨
PM2.5 8.9 µg/m³
37Good
9:00 AM
💨
PM2.5 8.9 µg/m³
37Good
10:00 AM
💨
PM2.5 8.2 µg/m³
37Good
11:00 AM
💨
PM2.5 7.5 µg/m³
45Good
12:00 PM
💨
PM2.5 7 µg/m³
50Good
1:00 PM
💨
PM2.5 6.2 µg/m³
53Moderate
2:00 PM
💨
PM2.5 5.2 µg/m³
56Moderate
3:00 PM
💨
PM2.5 4.7 µg/m³
60Moderate
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
60
Tue
💨
Good · UV Very high
50
Wed
💨
Moderate · UV Very high
60
Thu
💨
Good · UV Very high
46
Fri
💨
Good · UV Very high
27