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Preston

North Hertfordshire District

2026-05-01 14:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
26
PM2.5
μg/m³
8
Weather
  • ℃
  • ℉
24℃
35%
19 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Allergy Risk
  • PM10
  • PM2.5
  • Birch
  • Alder
  • Grasses
  • Olive Tree
  • Ragweed
  • Mugwort
Data Sources
http://uk-air.defra.gov.uk/http://www.polleninfo.org

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