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

Monitoring Station · Walla Walla, United States
134
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
56 12am
72
117
134 3am
96
96
108 6am
108
125
125 9am
126
126
188 12pm
108
108
— 3pm
—
—
— 6pm
—
—
— 9pm
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Station readings
56
72
117
134
CAMS model adj +42
34
34
34
34
54
54
66
66
83
83
84
84
146
66
66

Air Quality Forecast (24h)

PM2.548.9 µg/m³ ×3.3 WHO
Unhealthy for sensitive groups
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Nearby Monitoring Stations

72
12th St, Walla Walla, Washington, USA
0.0 km PM2.5: 22.1 µg/m³

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 2026-08-08T03:44 UTC.