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  3. North Dakota
  4. Cass County
  5. Ayr

Ayr

Cass County, North Dakota

2026-06-15 14:00
AQI (US)
Good
Pollutants
PM2.5
μg/m³
3
O3
μg/m³
35.9
NO2
μg/m³
5.3
PM10
μg/m³
2.5
SO2
μg/m³
2.4
Weather
  • ℃
  • ℉
20℃
51%
21 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • O3
  • NO2
  • PM10
  • SO2

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