Air quality in West Linn
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
28.1 µg/m³
WHO guideline 15
PM10
29.6 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
4:00 PM
💨
PM2.5 28.1 µg/m³
85 Moderate
5:00 PM
💨
PM2.5 29.8 µg/m³
88 Moderate
6:00 PM
💨
PM2.5 30.7 µg/m³
90 Moderate
7:00 PM
💨
PM2.5 30.6 µg/m³
90 Moderate
8:00 PM
💨
PM2.5 29.6 µg/m³
88 Moderate
9:00 PM
💨
PM2.5 28.7 µg/m³
86 Moderate
10:00 PM
💨
PM2.5 27.6 µg/m³
84 Moderate
11:00 PM
💨
PM2.5 26.7 µg/m³
82 Moderate
12:00 AM
💨
PM2.5 24.4 µg/m³
77 Moderate
1:00 AM
💨
PM2.5 20.8 µg/m³
69 Moderate
2:00 AM
💨
PM2.5 16.9 µg/m³
61 Moderate
3:00 AM
💨
PM2.5 12.3 µg/m³
51 Moderate
Next few days daily max · US EPA AQI
Thu
💨
Moderate · UV Low
94
Fri
💨
Moderate · UV Low
77
Sun
💨
Good · UV Moderate
30
Mon
💨
Good · UV Moderate
22
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain