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  4. Northumberland County

Northumberland County

Ontario

2026-01-01 03:00
AQI (US)
Good
Pollutants
O3
μg/m³
61.3
PM2.5
μg/m³
3.9
PM10
μg/m³
23.2
NO2
μg/m³
11
Weather
  • ℃
  • ℉
-7℃
73%
20 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • O3
  • PM2.5
  • PM10
  • NO2
Places included
Cobourg
AQI 27
Port Hope
AQI 27

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Cities Nearby

Cobourg
AQI 27
Millbrook
AQI 34
Newcastle
AQI 27
Peterborough
AQI 38
Quinte West
AQI 28
Norwood
AQI 58
Courtice
AQI 27
Lakefield
AQI 34
Oshawa
AQI 31
Stirling
AQI 28
Caesarea
AQI 54