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413 Chester Road, Oakenholt 413 Chester Road, Oakenholt

This section of the website allows you to choose a type of monitoring site, and then details for individual sites. Once you have chosen a site, its location will appear on the map above.

Choose a different type of monitoring site:
Hydocarbon Diffusion Tube sitesHydocarbon Diffusion Tube sites (8 Sites)
NO2 Diffusion Tube sitesNO2 Diffusion Tube sites (1001 Sites)
O3 Diffusion Tube sitesO3 Diffusion Tube sites (6 Sites)
SO2 Diffusion Tube sitesSO2 Diffusion Tube sites (9 Sites)

Non-Automatic Monitoring Sites in Wales

413 Chester Road, Oakenholt

NO2 Diffusion Tube sites
413 Chester Road, Oakenholt in 2017

2012 2013 2014 2015 2016 2017

Nitrogen dioxide

Date NO2 Units
29/03/2017  38* ugm-3
26/04/2017  34* ugm-3
31/05/2017  29* ugm-3
28/06/2017  21* ugm-3
02/08/2017  27* ugm-3
30/08/2017  24* ugm-3
27/09/2017  31* ugm-3
06/12/2017  31* ugm-3

Ratification Status:
» Red* - Provisional
» Green - Ratified

Use the buttons above to view data for years between 2012 and 2017

Further data and graphs may be downloaded here.

For more information on this monitoring data please contact this local authority at