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Air Quality Monitoring
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Local Air Quality Management
Air quality monitoring
Current measured levels
Overview of monitoring in Hillingdon
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Industrial air pollution control
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Current measured levels

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Details for London Hillingdon Harmondsworth

Today's Air Pollution levels are: Low (Index 1)
Pollution levels are Index 1
at 06:00 on 25/04/2024
Note: These results are based on provisional data. The data are presented in graphical form based on the highest pollutant measured at each site.

Current Levels for London Hillingdon Harmondsworth are:

ParameterConcentrationUnitBandLast updated
GE10 12µg/m3 (Ref.eq) Low (1)  25/04/2024 06:00
NO 4µg/m3   25/04/2024 06:00
NO2 38µg/m3 Low (1)  25/04/2024 06:00
NOXasNO2 45µg/m3   25/04/2024 06:00