12th St, Walla Walla, Washington, USA Air Quality

Monitoring Station · Walla Walla, United States
116
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
38 2am
57
81
116 5am
93
93
110 8am
110
111
111 11am
173
93
93 2pm
93
81
— 5pm
—
—
— 8pm
—
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— 11pm
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Station readings
38
57
116
CAMS model adj +27
34
34
54
54
66
66
83
83
84
84
146
66
66
66
54

Air Quality Forecast (24h)

PM2.541.6 µg/m³ ×2.8 WHO
Unhealthy for sensitive groups
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Nearby Cities

103 Walla Walla 54 Pendleton 76 Pasco 79 Kennewick 82 Tri-Cities 79 Richland 54 Hermiston 154 Lewiston 154 Lewiston Orchards

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T05:44 UTC.