UKEAP: National Ammonia Monitoring Network

What is the purpose of the network?

The National Ammonia Monitoring Network (NAMN) provides gaseous ammonia (NH3) and is monitored monthly ~ 72 sites. The network is used to quantify temporal and spatial changes in air concentrations and deposition in NH3 and NH4+ (at a subset of ~27 sites, as part of AGANet) on a long-term basis. The monitoring provides a baseline in the reduced nitrogen species (NH3 + NH4+), which is necessary for examining responses to changes in the agricultural sector and to verify compliance with targets set by international agreements.

What is measured?

Gaseous ammonia (NH3) and ammonium (NH4+).

View data for sites in this network

Data can be downloaded from the Defra Pollutant Deposition webpages.

Parameters Measured Monitoring sites and data
particulate ammonium
gaseous ammonia (active)
gaseous ammonia (passive)
gaseous ammonia (diffusion tube)
Current sites: 74
Total sites: 145
Data availability: 30/08/1996 to 05/02/2022

View data for sites for UKEAP: National Ammonia Monitoring Network network

Use the dropdown list below to view data for a particular monitoring site.