AURN Monitoring Site Monitoring Data
Horley (HORE, an AURN site)
Date Started: 21/11/2007
Inlet Height: 3.2 metres
Environment: Urban Background
This monitoring site data was last updated: 14/04/2021 12:00
|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.