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  3. South Holland
  4. Leiden

Leiden

Leiden, South Holland

2026-04-23 12:00
AQI (US)
Moderate
Pollutants|Pollens
PM2.5
μg/m³
12.3
PM10
μg/m³
13.4
Weather
  • ℃
  • ℉
15℃
67%
8 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Allergy Risk
  • PM2.5
  • PM10
  • Birch
  • Grasses
  • Alder
  • Ragweed
  • Mugwort
  • Olive Tree
Places included
Site 25031
AQI 12
Site 66272
AQI 14
Site 72464
AQI 18
Site 72856
AQI 24
Site 72915
AQI 21
Site 81839
AQI 21
Site 82032
AQI 19
Site 88050
AQI 25
Site 88291
AQI 38
Data Sources
http://www.polleninfo.orghttps://www.luchtmeetnet.nl/

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