Interactive Map of UK Monitoring Networks
The Ammonia, Acid Gases and Aerosols (formerly Nitric Acid) and Heavy Metals networks are now integrated with Google Maps for easy look-up of monitoring stations.

UK National Ammonia Monitoring Network (NAMN)
The Centre for Ecology & Hydrology is engaged in monitoring both gaseous ammonia (NH3) and a number of air pollutants with which it reacts. The monitoring of NH3 and aerosol ammonium (NH4+) is conducted under the UK National Ammonia Monitoring Network (NAMN). Following concern about the possible environmental impacts of atmospheric ammonia, the Department for Environment, Food and Rural Affairs (Defra) is supporting work to monitor the air concentrations of ammonia and ammonium across the UK.

UK Acid Gas and Aerosol Network (AGANET)
As part of the review of monitoring strategies for acidifying pollutants, Defra, has established a new network to monitor nitric acid and related species in the UK. This is within the context of EMEP, and forms part of the UK Eutrophying and
Acidifying Atmospheric Pollutants (UKEAP) network.

UK Heavy Metals Monitoring Network
The Centre for Ecology & Hydrology (CEH) operates a national monitoring network for heavy metals. In this site, you can find information about heavy metals, their potential for human health impacts and read about the scientific equipment we use to measure heavy metal concentrations in the atmosphere. This work is supported by the Department for Environment Food and Rural Affairs (Defra) and the devolved administrations (Scottish Executive, National Assembly for Wales and the Department for the Environment in Northern Ireland).

Other Networks
The new UK-Air website now provides an up to date list of monitoring sites in the UK.

A historical summary on Monitoring Networks can be found in theNEGTAP report (Appendix B).