UK Eutrophying and Acidifying Atmospheric Pollutants (UKEAP) Annual Report 2023

Twigg, M.M.; Braban, C.F.; Stephens, A.C.M.; Martin, P.Espina; Leeson, S.R.; Jones, M.R.; Simmons, I.; Harvey, D.; Yeung, K.; van Dijk, N.; Iwanicka, A.; Duarte, F.; Nemitz, E.; Leaver, D.; Andrews, C.; Thacker, S.; Keenan, P.O.; Pereira, M.G.; Guyatt, H.; Hunt, A.; Salisbury, E.; Chetiu, N.; Cook, F.; Warwick, A.; Rylett, D.; Teagle, S.; Lord, W.; Bannister, G.; Sutton, M.A.; Conolly, C.; Vincent, K.; Sanocka, A.; Ritchie, S.; Knight, D.; Donovan, B.; Jackson, T.; Dyer, M.; Osborne, E.

Twigg, M.M. ORCID: https://orcid.org/0000-0002-5462-3348; Braban, C.F. ORCID: https://orcid.org/0000-0003-4275-0152; Stephens, A.C.M.; Martin, P.Espina ORCID: https://orcid.org/0000-0001-7995-1033; Leeson, S.R.; Jones, M.R.; Simmons, I.; Harvey, D.; Yeung, K. ORCID: https://orcid.org/0009-0006-0400-3980; van Dijk, N.; Iwanicka, A.; Duarte, F. ORCID: https://orcid.org/0009-0009-8716-6778; Nemitz, E. ORCID: https://orcid.org/0000-0002-1765-6298; Leaver, D.; Andrews, C. ORCID: https://orcid.org/0000-0003-2428-272X; Thacker, S.; Keenan, P.O.; Pereira, M.G. ORCID: https://orcid.org/0000-0003-3740-0019; Guyatt, H.; Hunt, A. ORCID: https://orcid.org/0009-0003-2832-3071; Salisbury, E.; Chetiu, N.; Cook, F.; Warwick, A.; Rylett, D.; Teagle, S.; Lord, W.; Bannister, G.; Sutton, M.A. ORCID: https://orcid.org/0000-0002-6263-6341; Conolly, C.; Vincent, K.; Sanocka, A.; Ritchie, S.; Knight, D.; Donovan, B.; Jackson, T.; Dyer, M.; Osborne, E.. 2024 UK Eutrophying and Acidifying Atmospheric Pollutants (UKEAP) Annual Report 2023. Didcot, UK, Department for Environment, Food & Rural Affairs, 127pp. (UKCEH Project no. 07709)

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Abstract

This annual report for 2023 was prepared by UK Centre for Ecology & Hydrology and Ricardo for the Environment Agency, the Department of Environment and Rural Affairs, the Department of Environment Northern Ireland, the Welsh Government and the Scottish Government. The Defra rural air pollutant monitoring networks project, (2021 – 2024: ECM48524), UK Eutrophying and Acidifying Atmospheric Pollutants (UKEAP) comprises the following measurement networks: • UK Environmental Monitoring and Evaluation Program (EMEP) monitoring supersites (Chilbolton Observatory and Auchencorth Moss) • National Ammonia Monitoring Network (NAMN – 113 sites, Dec 2023) • Acid Gases and Aerosol Network (AGANet – 28 sites, Dec 2023) • Precipitation chemistry Network (Precip-Net – 48 sites) • Rural nitrogen dioxide (NO2) diffusion tube network (NO2-Net – 24 sites) The report provides information on: • Updates on network operations during 2023. • Annual concentrations. • Interpretation of data and discussion of trends across the network. • A summary of the scientific research, publications and other activities related to the network. Key network changes for 2023: • In spring 2023, 16 sites were added to NAMN and 7 sites were added to PrecipNet. The additional sites were embedded Natural England’s Long Term Monitoring Network (LTMN).

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