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Smiths Falls

Lanark County, Ontario

2026-03-07 12:00
AQI (US)
Moderate
Pollutants
PM2.5
μg/m³
11.8
PM10
μg/m³
27.3
O3
μg/m³
25.1
NO2
μg/m³
4.7
Weather
  • ℃
  • ℉
7℃
97%
24 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • PM10
  • O3
  • NO2

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