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High St, Lampeter High St, Lampeter
016 High St, Cardigan 016 High St, Cardigan
020 Terrace Rd, Aberystwyth 020 Terrace Rd, Aberystwyth
031 Pendam (background) 031 Pendam (background)
Dark Street, Haverfordwest Dark Street, Haverfordwest
Main Street, Pembrokeshire Main Street, Pembrokeshire
Charles Street, Milford Haven Charles Street, Milford Haven
Llwyneinion Road, Rhos Llwyneinion Road, Rhos

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 (1018 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

Hydocarbon Diffusion Tube sites

« Return to Non Automatic Data Menu

The following sites are in the Hydocarbon Diffusion Tube sites network. For more information including data, graphs and site photos, click on a monitoring site from the list below.

Site Name Date Started Date Ended
Llwyneinion Road, Rhos 31/01/2002 -
031 Pendam (background) 01/02/2002 -
020 Terrace Rd, Aberystwyth 31/01/1995 -
High St, Lampeter 31/01/1995 -
016 High St, Cardigan 31/01/1995 -
Dark Street, Haverfordwest 31/07/1998 -
Charles Street, Milford Haven 07/07/2003 -
Main Street, Pembrokeshire 30/06/1996 -