AURN Monitoring Site Monitoring Data

Chilbolton Observatory (CHBO, an AURN site)

Latitude: 51.149617
Longitude: -1.438228
Date Started: 11/01/2016
Altitude: 78 metres
Inlet Height: 7 metres

Latest Data

This monitoring site data was last updated: 22/09/2020 06:00

Parameter Pollution Band Concentration Period
PM10 particulate matter (Hourly measured) Low (Index 2) 23 µg/m3 (FIDAS) 24 Hour mean
PM2.5 particulate matter (Hourly measured) Low (Index 2) 13 µg/m3 (Ref.eq) 24 Hour mean
Nitrogen dioxide (NO2) Low (Index 1) 14 µg/m3 hourly mean
Sulphur dioxide (SO2) Low (Index 1) 2 µg/m3 15 Minute mean
Ozone (O3) Low (Index 1) 10 µg/m3 8 Hour mean
Nitric oxide (NO) not applicable 2 µg/m3 hourly mean
Nitrogen oxides as nitrogen dioxide (NOx as NO2) not applicable 17 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.

Go to monthly report page of the site.

Other monitoring sites

Use the dropdown below to switch to another monitoring site within this local authority.

Map showing the location of the Chilbolton Observatory monitoring site