Air quality in Eureka
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
7.7 µg/m³
WHO guideline 15
PM10
8.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 PM
💨
PM2.5 7.7 µg/m³
45Good
10:00 PM
💨
PM2.5 8.3 µg/m³
44Good
11:00 PM
💨
PM2.5 9.1 µg/m³
44Good
12:00 AM
💨
PM2.5 9.5 µg/m³
44Good
1:00 AM
💨
PM2.5 9.3 µg/m³
43Good
2:00 AM
💨
PM2.5 9 µg/m³
41Good
3:00 AM
💨
PM2.5 8.4 µg/m³
37Good
4:00 AM
💨
PM2.5 7.6 µg/m³
34Good
5:00 AM
💨
PM2.5 6.9 µg/m³
32Good
6:00 AM
💨
PM2.5 6.4 µg/m³
29Good
7:00 AM
💨
PM2.5 6.2 µg/m³
28Good
8:00 AM
💨
PM2.5 6 µg/m³
29Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
63
Wed
💨
Moderate · UV Very high
58
Thu
💨
Good · UV Very high
45
Fri
💨
Good · UV Very high
46
Sat
💨
Good · UV Very high
33