London Borough of Hounslow

Hounslow Gunnersbury (HS8)

Latitude: 51.500676
Longitude: -0.284383
Date Started: 09/02/2012
Altitude: 2 metres
Site Comments
Hounslow - Hatton Cross

Latest Data

This monitoring site data was last updated: 27/03/2019 01:00

Parameter Pollution Band Concentration Period
PM10 particulate matter (Hourly measured) Low (Index 2) 27 µg/m3 (Ref.eq) 24 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 41 µg/m3 hourly mean
Nitric oxide (NO) not applicable 14 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 62 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 Hounslow Gunnersbury monitoring site