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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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Current measured levels

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Details for London Hillingdon Harmondsworth Os

Today's Air Pollution levels are: Low (Index 1)
Pollution levels are Index 1
at 05:00 on 20/04/2024
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 Os are:

ParameterConcentrationUnitBandLast updated
GE10 10µg/m3 (INDIC GRAV) Low (1)  20/04/2024 05:00
PM1 2µg/m3 (Osiris)   20/04/2024 05:00
PM25 4µg/m3 (Osiris) Low (1)  20/04/2024 05:00
TSP 11µg/m3 (Osiris)   20/04/2024 05:00