Spelthorne Borough Council

Heathrow Oaks Road (T54)

Latitude: 51.459444
Longitude: -0.479444
Date Started: 04/05/2001
Altitude: 21 metres
Environment: Airport

Latest Data

This monitoring site data was last updated: 22/01/2019 05:00

Parameter Pollution Band Concentration Period
PM10 particulate matter (Hourly measured) Low (Index 2) 27 µg/m3 (FIDAS) 24 Hour mean
PM2.5 particulate matter (Hourly measured) Low (Index 2) 22 µg/m3 (Ref.eq) 24 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 11 µg/m3 hourly mean
Nitric oxide (NO) not applicable 3 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 14 µg/m3 hourly mean
PM1 Particulates (PM1) not applicable 23 µg/m3 (FIDAS) 24 Hour 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.

Map showing the location of the Heathrow Oaks Road monitoring site