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Castle

Borough of Colchester, Essex

2026-08-10 22:00
AQI (China)
Excellent
Pollutants|Pollens
PM10
μg/m³
13.7
O3
μg/m³
39.4
PM2.5
μg/m³
5.8
NO2
μg/m³
4.9
SO2
μg/m³
0.2
Weather
  • ℃
  • ℉
16℃
78%
13 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Allergy Risk
  • PM10
  • O3
  • PM2.5
  • NO2
  • SO2
  • Grasses
  • Mugwort
  • Alder
  • Ragweed
  • Birch
  • Olive Tree

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