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St Anne's and St John's

Borough of Colchester, Essex

2026-09-25 09:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
12.2
NO2
μg/m³
21
PM2.5
μg/m³
5.6
O3
μg/m³
14
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
15℃
86%
4 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Allergy Risk
  • PM10
  • NO2
  • PM2.5
  • O3
  • SO2
  • Mugwort
  • Grasses
  • Alder
  • Ragweed
  • Birch
  • Olive Tree

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