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  4. Heerlen

Heerlen

Limburg

2026-03-08 02:00
AQI (US)
Unhealthy for Sensitive Groups
Pollutants|Pollens
PM2.5
μg/m³
44.8
PM10
μg/m³
72.9
NO2
μg/m³
20.7
O3
μg/m³
0.3
Weather
  • ℃
  • ℉
5℃
93%
2 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Allergy Risk
  • PM2.5
  • PM10
  • NO2
  • O3
  • Alder
  • Ragweed
  • Mugwort
  • Birch
  • Olive Tree
  • Grasses
Places included
Heerlen
AQI 121
Hoensbroek
AQI 127
Data Sources
http://www.polleninfo.orghttps://www.luchtmeetnet.nl/

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Heerlen
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