Saint Charles Real-time Air Quality Index (AQI) & Pollution Report - Air Matters

Saint Charles

South, Madison County

2026-09-29 12:00

AQI (US)

Good

PM2.5

μg/m³

4.2

O3

μg/m³

51.9

PM10

μg/m³

3.4

Weather

14℃

93%

12 kph

0 of 11

Historical Data

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