Arnold West, Missouri, USA Air Quality

Monitoring Station · Oakville, United States
72
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
68 1pm
68
68
48 4pm
48
48
48 7pm
48
48
48 10pm
48
48
68 1am
68
68
— 4am
—
—
— 7am
—
—
— 10am
—
—
CAMS model adj +14
54
54
54
34
34
34
34
34
34
34
34
34
54
54
54

Air Quality Forecast (24h)

PM2.522.1 µg/m³ ×1.5 WHO
Moderate
View city history →

Nearby Monitoring Stations

46
Arnold West, Missouri, USA
0.0 km PM2.5: 11.0 µg/m³
27
Arnold West, Missouri, USA
0.0 km PM2.5: 6.5 µg/m³
68
Arnold West, Missouri, USA
0.0 km PM2.5: 20.2 µg/m³
49
Arnold West, Missouri, USA
0.0 km PM2.5: 11.8 µg/m³
27
Forest Park, Missouri, USA
22.7 km PM2.5: 6.5 µg/m³
39
Ladue, Missouri, USA
22.8 km PM2.5: 9.4 µg/m³
52
East St. Louis, Illinois, USA
27.5 km PM2.5: 12.6 µg/m³
35
Blair Street, Missouri, USA
28.9 km PM2.5: 8.4 µg/m³

Nearby Cities

35 Oakville 34 Concord 34 Mehlville 32 Affton 32 Lemay 31 Kirkwood 30 Webster Groves 31 Manchester 32 Ballwin

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-09-05T16:32 UTC.