7d380209-9df4-4686-b7ad-de39cca19cce English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:23:06 UK GEMINI 2.3 WGS 84 Monthly atmospheric ammonia gas concentration data from Northern Ireland ALPHA® Ammonia Monitoring Network, 2019-2020 2022-03-28 publication https://catalogue.ceh.ac.uk/id/7d380209-9df4-4686-b7ad-de39cca19cce 10.5285/7d380209-9df4-4686-b7ad-de39cca19cce doi: Tang, Y.S., Tomlinson, S.J., Carnell, E.J., Williams, M., Simmons, I., Twigg, M., Stephens, A.C.M., Iwanicka, A., Leaver, D., Braban, C.F., Mcllroy, J., Pereira, M.G., Keenan, P.O., Tanna, B., Thacker, S., Salisbury, E., Hunt, A., Guyatt, H., Smith, H., Graham, C., Dragosits, U. (2022). Monthly atmospheric ammonia gas concentration data from Northern Ireland ALPHA® Ammonia Monitoring Network, 2019-2020. NERC EDS Environmental Information Data Centre 10.5285/7d380209-9df4-4686-b7ad-de39cca19cce This dataset is from the Northern Ireland (NI) ALPHA® Ammonia Monitoring network, and consists of monthly concentrations of atmospheric ammonia (NH3) gas measured with the UKCEH ALPHA® method at 25 sites across NI for the years 2019 to 2020. NH3 data were also collected with a monthly measurement frequency with the UKCEH DELTA® method at a further 4 sites, as part of the NI DELTA® Gas and Aerosol Monitoring Network. At one site, ALPHA® and DELTA® methods were co-located to inter-compare NH3 concentrations. Monthly NH3 data (2019 – 2020) from the NI DELTA® network are reported separately in a companion submission. The network is operated jointly by Agri-Food and Biosciences Institute (AFBI) and the UK Centre for Ecology & Hydrology (UKCEH), and funded by the Department of Agriculture, Environment and Rural Affairs (DAERA), Northern Ireland. Full details about this dataset can be found at https://doi.org/10.5285/7d380209-9df4-4686-b7ad-de39cca19cce Tang, Y.S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-7814-3998 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Tomlinson, S.J. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Carnell, E.J. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0003-0870-1955 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Williams, M. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Simmons, I. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Twigg, M. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Stephens, A.C.M. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Iwanicka, A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Leaver, D. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Braban, C.F. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Mcllroy, J. Agri Food and Biosciences Institute John.McIlroy@afbini.gov.uk author Pereira, M.G. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0003-3740-0019 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Keenan, P.O. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Tanna, B. UK Centre for Ecology & Hydrology bstanna@googlemail.com author Thacker, S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Salisbury, E. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Hunt, A. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Guyatt, H. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Smith, H. unaffiliated hannahl-smith@hotmail.co.uk author Graham, C. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Dragosits, U. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-9283-6467 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Tang, Y.S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-7814-3998 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information pointOfContact NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner Agri Food and Biosciences Institute EMAIL NOT PROVIDED owner Environmental Monitoring Facilities theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication ammonia GEMET - Concepts, version 4.1.3 2019-01-28 creation Pollution Northern Ireland NH3 atmospheric network ALPHA otherRestrictions no limitations otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions If you reuse this data, you should cite: Tang, Y.S., Tomlinson, S.J., Carnell, E.J., Williams, M., Simmons, I., Twigg, M., Stephens, A.C.M., Iwanicka, A., Leaver, D., Braban, C.F., Mcllroy, J., Pereira, M.G., Keenan, P.O., Tanna, B., Thacker, S., Salisbury, E., Hunt, A., Guyatt, H., Smith, H., Graham, C., Dragosits, U. (2022). Monthly atmospheric ammonia gas concentration data from Northern Ireland ALPHA® Ammonia Monitoring Network, 2019-2020. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/7d380209-9df4-4686-b7ad-de39cca19cce textTable 1100 English utf8 climatologyMeteorologyAtmosphere 2019-01-01 2020-01-01 -8.178 -5.432 54.022 55.313 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/7d380209-9df4-4686-b7ad-de39cca19cce Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/7d380209-9df4-4686-b7ad-de39cca19cce.zip Supporting information Supporting information available to assist in re-use of this dataset information dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 ALPHA® samplers were prepared and analysed by the UKAS accredited UKCEH Lancaster Laboratory, following protocols and procedures in manuals and Standard Operating Procedures (SOPs) developed and adopted in the UK National Ammonia Monitoring Network (NAMN), operated also by UKCEH. Measurement frequency was monthly, with monthly site visits (± 5 days of the 1st of each calendar month) by a network of trained local site operators to exchange samples. Sample exposure information (manual transcription from site recording sheets) and raw chemistry data files from analysed air samples (csv files) are stored, combined and processed in an oracle-based database (AAGA) to calculate and output calculated NH3 concentrations via a ShinyApp. Output files are in a standardised reporting template, with data quality flags (based on flags defined in ebas; https://projects.nilu.no/ccc/flags/). Each output file generated are time-stamped, with versioning control. An annual field calibrated ALPHA® uptake rate from the UK National Ammonia Monitoring Network project (https://uk-air.defra.gov.uk/networks/network-info?view=nh3) was applied to the ALPHA® data for the corresponding calendar year. Ratified data were generated following a multi-stage, iterative review process, with both automatic and manual data checks, in accordance with procedures in the AAGA data processing system and data review SOPs.