Air quality in West Lake Sammamish
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 µg/m³
WHO guideline 15
PM10
5 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
10:00 PM
💨
PM2.5 5 µg/m³
21 Good
11:00 PM
💨
PM2.5 4.9 µg/m³
20 Good
12:00 AM
💨
PM2.5 4.3 µg/m³
20 Good
1:00 AM
💨
PM2.5 4.5 µg/m³
24 Good
2:00 AM
💨
PM2.5 5 µg/m³
26 Good
3:00 AM
💨
PM2.5 5.6 µg/m³
26 Good
4:00 AM
💨
PM2.5 6.3 µg/m³
27 Good
5:00 AM
💨
PM2.5 6.9 µg/m³
29 Good
6:00 AM
💨
PM2.5 7.5 µg/m³
31 Good
7:00 AM
💨
PM2.5 9.1 µg/m³
38 Good
8:00 AM
💨
PM2.5 10.3 µg/m³
43 Good
9:00 AM
💨
PM2.5 10.8 µg/m³
45 Good
Next few days daily max · US EPA AQI
Fri
💨
Moderate · UV Low
68
Sat
💨
Moderate · UV Low
71
Sun
💨
Good · UV Moderate
30
Mon
💨
Good · UV Moderate
23
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain