Diffusion Tubes

Diffusion Tube Data Centre

This website is used voluntarily by local authorities and in some cases only historical data is available. The website is newly available having been offline since 2010. Local authorities may hold other Nitrogen Dioxide Diffusion Tube data, which will be available in individual LAQM reports which can be obtained directly from each local authority.

Only local authorities who have registered to use the system are listed. If the local authority you are looking for is not listed, this does not mean they do not carry not diffusion tube monitoring.

When searching for results by date, only the dates for which data has been entered by local authorities are shown.

Local authorities wishing to update their Diffusion Tube monitoring results should contact the LAQM Helpdesk (LAQMHelpdesk@uk.bureauveritas.com, 0800 032 7953) to obtain user details.

All Sites:
Closed Sites:

Roadside:
Background:
Kerbside:
U. Centre:
Suburban:
Industrial:
Rural:
Other:

Legend:

Roadside

Background

Kerbside

Urban Centre

Suburban

Industrial

Rural

Other

Download Diffusion Tube Data

Step 1: Choose a Local Authority

Only Local Authorities with data submitted are shown.

All results provided are raw data and have not been corrected for bias. Please see the bias adjustment pages for more information.

Information on the Diffusion Tube Data Centre

User Guide

Guidance on the use of this site is available here.

Data Type

All results provided are raw data and have not been corrected for bias. Please see the bias adjustment pages for more information.

Data Availability

This website is used voluntarily by local authorities and in some cases only historical data is available. The website is newly available having been offline since 2010. Local authorities may hold other Nitrogen Dioxide Diffusion Tube data, which will be available in individual LAQM reports which can be obtained directly from each local authority.

Only local authorities who have registered to use the system are listed. If the local authority you are looking for is not listed, this does not mean they do not carry not diffusion tube monitoring.

When searching for results by date, only the dates for which data has been entered by local authorities are shown.

Local authorities wishing to update their Diffusion Tube monitoring results should contact the LAQM Helpdesk (LAQMHelpdesk@uk.bureauveritas.com, 0800 032 7953) to obtain user details.

Information for Authorities formed in 2009

In 2009, nine new Unitary Authorities were created by combining several smaller local authorities. Therefore, the local authority name under which monitoring was carried out will have changed at this time.

These new authorities are:

  • Bedford (formed from Bedford District Council)
  • Central Bedfordshire (formed from Mid Bedfordshire and South Bedfordshire)
  • Cheshire East (formed from Congleton, Crewe & Nantwich and Macclesfield District Councils)
  • Cheshire West & Chester (formed from Chester, Vale Royal, and Ellesmere Port & Neston District Councils)
  • Cornwall (formed from Caradon, Carrick, Kerrier, North Cornwall, Penwith and Restormel District Councils - note the Isles of Scilly remains separate).
  • Durham (formed from Chester-le-Street, Derwentside, Durham, Easington, Sedgefield, Teesdale and Wear Valley District Councils)
  • Northumberland (formed from Alnwick, Berwick-upon-Tweed, Blyth Valley, Castle Morpeth, Tynedale and Wansbeck District Councils)
  • Shropshire (formed from Bridgnorth, North Shropshire, Oswestry, Shrewsbury & Atcham, and South Shropshire District Councils)
  • Wiltshire (formed from Kennet, North Wiltshire, Salisbury and West Wiltshire District Councils)