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UK Eutrophying and Acidifying Atmospheric Pollutants (UKEAP) - AQ0616

The UK Eutrophying and Acidifying atmospheric Pollutants (UKEAP) network project combines two Defra atmospheric pollutant monitoring projects which have measured air pollutants at rural sites across the UK over the past two decades. UKEAP sits within the wider framework of UK pollutant monitoring and contributes data to the UK and the international research effort investigating the flow of chemicals in the environment. This in turn supports the effort to understand climate and ecosystem responses to anthropogenic and biogenic emissions, and the assessment of climate, ecosystem and human impacts of acidifying and eutrophying air pollutants.

The atmospheric gases measured within UKEAP network are sulphur dioxide (SO2), nitrogen dioxide (NO2), hydrochloric acid (HCl), nitric acid (HNO3) and ammonia (NH3). The chemical components of atmospheric particulate matter and precipitation are also measured: specifically, for particulates and precipitation: sulphate, chloride, nitrate, ammonium, potassium, calcium and magnesium are analysed. In addition, in precipation: pH, phosphate and non-sea-salt sulphate are also measured. UKEAP has 4 component networks: The Precipitation Network, NO2 network, Acid Gas and Aerosol Network (AGANET) and the National Ammonia Monitoring Network (NAMN). Each network functions on a national scale, however with differing spatial and temporal resolution which reflects the spatial and temporal heterogeneiety of the atmospheric pollutant concerned.

The UKEAP programme of high quality measurements allows an assessment of the spatial distribution of the monitored air pollutants and the changes in concentrations over time by the continuation of the dataset time series. The basic precept of UKEAP is to maintain continuity in the measurement approaches. In addition, to improve the output of the monitoring networks, a focussed review of the science and logistics underpinning the network structure will be carried out in the first six months of the 3 year work programme. A particular emphasis will be particularly placed on viewing the UKEAP monitoring networks in the context of the changing pollution climate and user needs. This will be coupled to the review which will aim to, with careful tuning, meet future UK and international acidifying and eutrophying atmospheric pollutant assessment needs and with regard to Defra's stated aim of cost savings. CEH and AEA both regard data assessment, submission to the national and international institutions and careful data and trend interpretation as key components needed by Defra.
Time-Scale and Cost
From: 2009

To: 2011

Cost: £1,269,802
Contractor / Funded Organisations
AEA Energy & Environment, Centre for Ecology and Hydrology
Air Pollution              
Environmental Protection              
Fields of Study
Air Quality