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  4. Rockingham County
  5. Portsmouth

Portsmouth

Portsmouth, New Hampshire

2025-12-11 22:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
83.6
PM10
μg/m³
10
PM2.5
μg/m³
1.5
SO2
μg/m³
3.1
Weather
  • ℃
  • ℉
-4℃
50%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
Data Sources
http://www.airnow.gov/

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