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UKEAP: Acid Gas and Aerosol Network 

What is measured?

An extension of the DELTA system at the NAMN sites is used to additionally sample gaseous HNO3, SO2, HCl and particulate NO3-, SO42-, Cl-, Na+, Ca2+, Mg2+. The expanded network includes measurements of gaseous SO2 and particulate SO42-.

Monthly = 30 sites

What is the purpose of the network?

The UK Acid Gases and Aerosols Monitoring Network (AGANet) has been in operation since September 1999, providing monthly measurement data of acid gases and aerosols.

The objectives of the network are to provide a long-term dataset of monthly speciated measurements of acid gases and aerosols that will be used:

  • To provide temporal and spatial patterns and trends, and compare results with dispersion models;
  • For Pollution Climate mapping and Acid Deposition Processes contract; and
  • To contribute to mass closure from the measurements of several components of particulate matter (NO3-, SO42-, Cl-, Na+, Mg2+ and Ca2+) together with NH4+ from the closely integrated NAMN), which was one of the recommendations in the Air Quality Expert Group's report on Particulate matter; and
  • For calculation of national and regional deposition budgets, especially in upland areas which are sensitive to acid deposition.

Monitoring methods?

An extension of the DELTA system at the NAMN sites is used to additionally sample gaseous HNO3, SO2, HCl and particulate NO3-, SO42-, Cl-, Na+, Ca2+, Mg2+. The expanded network includes measurements of gaseous SO2 and particulate SO42-.

View data for sites for UKEAP: Acid Gases & Aerosol Network network

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

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Page last modified: 31 May 2013