Seattle-5th Ave S Air Quality

Monitoring Station · Columbia City, United States
135
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
52 5pm
47
64
135 8pm
64
64
64 11pm
64
44
44 2am
44
64
64 5am
64
8am
11am
2pm
Station readings
52
47
135
CAMS model adj +10
54
54
54
54
54
54
54
54
34
34
34
54
54
54
PM2.549.4 µg/m³ ×3.3 WHO
Unhealthy for sensitive groups
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T20:30 UTC.