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

Monitoring Station · Walla Walla, United States
102
Unhealthy for sensitive groups
Sensitive groups should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
48 8pm
102
48
48 11pm
46
75
75 2am
75
75
87 5am
87
87
87 8am
87
—
— 11am
—
—
— 2pm
—
—
— 5pm
—
—
Station readings
102
CAMS model adj +21
27
27
27
27
25
54
54
54
54
66
66
66
66
66

Air Quality Forecast (24h)

PM2.535.9 µg/m³ ×2.4 WHO
Unhealthy for sensitive groups
View city history →

Nearby Monitoring Stations

31
12th St, Walla Walla, Washington, USA
0.0 km PM2.5: 7.4 µg/m³

Nearby Cities

99 Walla Walla 45 Pendleton 102 Pasco 87 Kennewick 86 Tri-Cities 83 Richland 72 Hermiston 74 Lewiston 71 Lewiston Orchards

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-07-21T23:13 UTC.