AURN Monitoring Site Monitoring Data

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Horley (HORE, an AURN site)

Latitude: 51.165865
Longitude: -0.167734
Date Started: 21/11/2007
Altitude: 40 metres
Inlet Height: 3.2 metres
Environment: Urban Background

Latest Data

This monitoring site data was last updated: 14/04/2021 12:00

Parameter Pollution Band Concentration Period
Nitrogen dioxide (NO2) Low (Index 1) 12 µg/m3 hourly 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.

Map showing the location of the Horley monitoring site