London Borough of Hillingdon Monitoring Data

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Hillingdon Harmondsworth (HIL1)

Latitude: 51.487989
Longitude: -0.480984
Date Started: 01/07/2007
Environment: Urban Background

Latest Data

This monitoring site data was last updated: 21/11/2024 07:00

Parameter Pollution Band Concentration Period
Nitrogen dioxide (NO2)   No Data hourly mean
PM10 particulate matter (Hourly measured) Low (Index 1) 6 µg/m3 (Ref.eq) 24 Hour mean
Nitric oxide (NO)   No Data hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2)   No Data hourly mean

Note: Values are based on provisional data. Data are GMT hour ending.
PM10 is measured as a running 24 hour mean, up to the current hour, and the band/index is calculated accordingly.

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Map showing the location of the Hillingdon Harmondsworth monitoring site