bb431417-01e8-43e7-bfe5-e48441b2e091 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 2026-01-06T10:04:39 UK GEMINI 2.3 OSGB 1936 / British National Grid Plynlimon research catchment hydrochemistry (2024-2025) 2025-12-19 publication 2025-11-26 creation https://catalogue.ceh.ac.uk/id/bb431417-01e8-43e7-bfe5-e48441b2e091 10.5285/bb431417-01e8-43e7-bfe5-e48441b2e091 doi: van Soest, M.A.J., Fitos, E., Lebron, I., Tandy, S., Keenan, P.O., Pereira, M.G., Hatton, J.E. (2025). Plynlimon research catchment hydrochemistry (2024-2025). NERC EDS Environmental Information Data Centre 10.5285/bb431417-01e8-43e7-bfe5-e48441b2e091 This dataset includes stream and rainfall hydrochemistry of the Plynlimon (Pumlumon in Welsh) research catchments in Mid Wales. The data cover the period from March 2024 to March 2025. Sampling was carried out every four weeks by a team of researchers from UK Centre for Ecology & Hydrology. Stream samples were taken using a grab technique and filtered in the field. Rain samples were collected using bulk precipitation collectors. Data are presented for major anions and cations, pH, conductivity, alkalinity and in-situ measurements for the water temperature and stream flow for the six stream locations and air temperature and volume for the rainfall sites. Full details about this dataset can be found at https://doi.org/10.5285/bb431417-01e8-43e7-bfe5-e48441b2e091 Maud van Soest UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk pointOfContact van Soest, M.A.J. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-4656-515X 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 Fitos, E. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk author Lebron, I. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0001-8610-9717 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 Tandy, S. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0003-0662-0991 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 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 Hatton, J.E. UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk https://orcid.org/0000-0002-9408-7981 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 UK Centre for Ecology & Hydrology enquiries@ceh.ac.uk owner NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC EDS Environmental Information Data Centre info@eidc.ac.uk publisher environmental chemistry water quality GEMET - Concepts, version 4.1.3 2019-01-28 creation Water quality Wales Plynlimon 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: van Soest, M.A.J., Fitos, E., Lebron, I., Tandy, S., Keenan, P.O., Pereira, M.G., Hatton, J.E. (2025). Plynlimon research catchment hydrochemistry (2024-2025). NERC EDS Environmental Information Data Centre https://doi.org/10.5285/bb431417-01e8-43e7-bfe5-e48441b2e091 textTable English utf8 inlandWaters 2024-03-01 2025-03-31 -3.771 -3.611 52.423 52.531 Comma-separated values (CSV) NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/data/bb431417-01e8-43e7-bfe5-e48441b2e091 Download the data Download a copy of this data download https://data-package.ceh.ac.uk/sd/bb431417-01e8-43e7-bfe5-e48441b2e091.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 This data presented follow on from the hydrochemical data sets presented in the data series Plynlimon Hydrochemistry data. The Plynlimon research catchments lie within the headwaters of the River Severn and the River Wye in the uplands of mid-Wales. Intensive and long-term monitoring within the catchments underpins a wealth of hydrological and hydro-chemical research. Monitoring is funded by the Centre for Ecology & Hydrology, and is ongoing since 1968. Fieldwork was carried out by UKCEH members of staff trained in the fieldwork techniques required. Chemical analysis was carried out by qualified UKCEH chemists at laboratories at UKCEH Lancaster and UKCEH Bangor. Data was being checked and added to an Access database before being extracted to csv and uploaded to EIDC.