London Borough of Hounslow

Hounslow Cranford (HS2)

Latitude: 51.482982
Longitude: -0.411895
Date Started: 02/01/1999

Latest Data

This monitoring site data was last updated: 25/05/2019 18:00

Parameter Pollution Band Concentration Period
Ozone (O3) Low (Index 3) 73 µg/m3 8 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 5 µg/m3 hourly mean
Sulphur dioxide (SO2) Low (Index 1) 0 µg/m3 15 Minute mean
PM10 particulate matter (Hourly measured) Low (Index 1) 11 µg/m3 (VCM) 24 Hour mean
Nitric oxide (NO) not applicable 0 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 5 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 Cranford monitoring site