London Borough of Hillingdon Monitoring Data

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Hillingdon Sipson (SIPS)

Latitude: 51.484384
Longitude: -0.455695
Date Started: 08/09/2006
Environment: Urban Background

Latest Data

This monitoring site data was last updated: 22/03/2025 11:00

Parameter Pollution Band Concentration Period
Nitrogen dioxide (NO2) Low (Index 1) 16 µg/m3 hourly mean
Nitric oxide (NO) not applicable 4 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 22 µg/m3 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 Sipson monitoring site