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  5. Port Huron

Port Huron

St. Clair County, Michigan

2026-03-09 07:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
62.1
PM2.5
μg/m³
3.8
SO2
μg/m³
1.4
Weather
  • ℃
  • ℉
9℃
68%
23 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM2.5
  • SO2
Places included
PORT HURON
AQI 20
Data Sources
http://www.airnow.gov/

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