Blair Street, Missouri, USA Air Quality

Monitoring Station · St. Louis, United States
151
Unhealthy
Everyone should reduce prolonged outdoor exertion.
Last Reading

Nearby Monitoring Stations

GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast Calibrated
38 4am
21
151
38 7am
38
38
38 10am
38
38
38 1pm
58
58
58 4pm
58
58
— 7pm
—
—
— 10pm
—
—
— 1am
—
—
Station readings
21
151
CAMS model adj +4
34
34
34
34
34
34
34
34
34
34
54
54
54
54
54

Air Quality Forecast (24h)

PM2.555.5 µg/m³ ×3.7 WHO
Unhealthy
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Nearby Monitoring Stations

44
East St. Louis, Illinois, USA
6.0 km PM2.5: 10.6 µg/m³
43
East St. Louis, Illinois, USA
6.0 km PM2.5: 10.3 µg/m³
51
Forest Park, Missouri, USA
7.7 km PM2.5: 12.1 µg/m³
35
Ladue, Missouri, USA
13.2 km PM2.5: 8.4 µg/m³
20
Arnold West, Missouri, USA
28.9 km PM2.5: 4.8 µg/m³
34
Arnold West, Missouri, USA
28.9 km PM2.5: 8.2 µg/m³
31
Arnold West, Missouri, USA
28.9 km PM2.5: 7.4 µg/m³

Nearby Cities

53 St. Louis 54 East Saint Louis 52 Granite City 41 University City 40 Clayton 44 Ferguson 48 Spanish Lake 41 Overland 49 Lemay

Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-08-08T07:23 UTC.