In this section:
Air Quality Monitoring
Introduction
Local Air Quality Management
Air quality monitoring
Current measured levels
Overview of monitoring in Hillingdon
Download air quality data
Industrial air pollution control
Useful links
Frequently asked questions
Contact us
Cookies used on the air quality pages

Current measured levels

Select the monitoring site and the summary from the list below and to display the latest information:

Latest Data   |   Plots   |   Site Info   |   Photo   |  

Automatic monitoring stations

Details for London Hillingdon

Today's Air Pollution levels are: Low (Index 2)
Pollution levels are Index 2
at 06:00 on 02/05/2025
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 are:

ParameterConcentrationUnitBandLast updated
GE10 29µg/m3 (FIDAS) Low (2)  02/05/2025 06:00
NO 2µg/m3   02/05/2025 06:00
NO2 24µg/m3 Low (1)  02/05/2025 06:00
NOXasNO2 27µg/m3   02/05/2025 06:00
O3 50µg/m3 Low (2)  02/05/2025 06:00
PM25 16µg/m3 (Ref.eq) Low (2)  02/05/2025 06:00