London Borough of Hillingdon

Hillingdon 1 - South Ruislip (HI1)

Latitude: 51.552260
Longitude: -0.402780
Date Started: 21/09/1999
Environment: Roadside

Latest Data

This monitoring site data was last updated: 25/05/2019 19:00

Parameter Pollution Band Concentration Period
Nitrogen dioxide (NO2) Low (Index 1) 13 µg/m3 hourly mean
PM10 particulate matter (Hourly measured) Low (Index 1) 8 µg/m3 (VCM) 24 Hour mean
Nitric oxide (NO) not applicable 4 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 19 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 1 - South Ruislip monitoring site