Monthly atmospheric ammonia, acid gas, inorganic aerosols and base cation concentrations from Northern Ireland DELTA gas and aerosol monitoring network, 2019-2020

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This dataset is available under the terms of the Open Government Licence

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https://doi.org/10.5285/55ad7cf8-fc40-4b8a-9d35-ce970a915ff6

This dataset is from the Northern Ireland (NI) DELTA® Gas and Aerosol Monitoring Network, and consists of monthly atmospheric concentrations of inorganic, water-soluble, reactive gases and aerosols measured with the UKCEH DELTA® method at 4 sites across NI for the years 2019 to 2020.
• Gases: ammonia (NH3), nitric acid (HNO3), sulphur dioxide (SO2)
• Aerosols: ammonium (NH4+), nitrate (NO3-), sulphate (SO42-), chloride (Cl-), sodium (Na+), calcium (Ca2+), Magnesium (Mg2+)

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.

Publication date: 2022-05-25

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View numbers valid from 01 June 2023 Download numbers valid from 20 June 2024 (information prior to this was not collected)

Format

Comma-separated values (CSV)

Spatial information

Study area

Spatial representation type

Tabular (text)

Temporal information

Temporal extent

2019-01-01 to 2020-01-01

Provenance & quality

Monthly DELTA® air 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) and UK Acid Gas and Aerosol Monitoring Network (AGANet), 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 gas and aerosol 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.

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.

Licensing and constraints

This dataset is available under the terms of the Open Government Licence

Cite this dataset as:

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, acid gas, inorganic aerosols and base cation concentrations from Northern Ireland DELTA gas and aerosol monitoring network, 2019-2020. NERC EDS Environmental Information Data Centre. https://doi.org/10.5285/55ad7cf8-fc40-4b8a-9d35-ce970a915ff6

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This dataset is included in the following collections

Northern Ireland ALPHA® and DELTA® monitoring networks

Supplemental information

UKEAP National Ammonia Monitoring Network (NAMN)

UKEAP Acid Gas and Aerosol Network (AGANet)

UKEAP National Ammonia Monitoring Network – atmospheric ammonia gas and ammonium aerosol data (since 1996)

UKEAP Acid Gas and Aerosol Network – atmospheric acid gas and aerosol data (since 1999)