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

Welwyn

Welwyn Hatfield

2026-05-31 07:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
6
PM10
μg/m³
13
Weather
  • ℃
  • ℉
17℃
70%
19 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Allergy Risk
  • PM2.5
  • PM10
  • Grasses
  • Alder
  • Ragweed
  • Mugwort
  • Birch
  • Olive Tree
Places included
Welwyn
AQI 34
Data Sources
http://www.polleninfo.orghttp://uk-air.defra.gov.uk/

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