1. Europe
  2. United Kingdom
  3. England
  4. Hertfordshire
  5. Welwyn Hatfield
  6. Essendon

Essendon

Welwyn Hatfield

2026-04-30 15:00
CAQI (Europe)
Very Low
Pollutants|Pollens
PM10
μg/m³
19
PM2.5
μg/m³
7
Weather
  • ℃
  • ℉
19℃
33%
24 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Allergy Risk
  • PM10
  • PM2.5
  • Birch
  • Grasses
  • Alder
  • Ragweed
  • Mugwort
  • Olive Tree
Data Sources
http://uk-air.defra.gov.uk/http://www.polleninfo.org

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