{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T11:20:40Z","timestamp":1764760840018,"version":"3.46.0"},"reference-count":6,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T00:00:00Z","timestamp":1764720000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Data"],"abstract":"<jats:p>Liep\u0101ja Lake, a Natura 2000 protected area and one of the largest coastal freshwater bodies in Latvia, has been historically influenced by urbanization, diffuse agricultural inputs, and legacy contamination from metallurgy and ship-repair industries. Comprehensive, spatially explicit data on its sediment and water chemistry were previously lacking. The dataset used in this study provides an openly accessible record of major and trace element concentrations in surface sediments and surface waters collected during the 2024 field campaign. Sampling sites were distributed across northern, central, and southern zones to capture gradients in anthropogenic pressure and natural variability. Water samples were filtered and acidified following ISO 15587-2:2002, while sediments were homogenized, sieved, and digested following EPA 3051a. Both matrices were analyzed using Inductively Coupled Plasma Mass Spectrometry (ICP-MS, Agilent 8900 ICP-QQQ) with multi-element calibration traceable to NIST standards. The dataset comprises 31 analytes (Li\u2013Bi) with paired standard deviation values, reported in mg kg\u20131 (sediments) and \u00b5g L\u20131 (water). Rigorous validation included certified reference materials, duplicates, blanks, and statistical outlier screening. The resulting data form a reliable geochemical baseline for assessing pollution sources, quantifying spatial heterogeneity, and supporting future monitoring, modeling, and restoration efforts in climate-sensitive Baltic coastal lakes.<\/jats:p>","DOI":"10.3390\/data10120200","type":"journal-article","created":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T10:34:01Z","timestamp":1764758041000},"page":"200","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Georeferenced Sediment and Surface Water Element Concentrations in the Coastal Liep\u0101ja Lake (Latvia), 2024"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3220-1777","authenticated-orcid":false,"given":"Inga","family":"Grinfelde","sequence":"first","affiliation":[{"name":"Institute of Landscape Architecture and Environmental Engineering, Latvia University of Life Sciences and Technologies, Liela Street 2, LV-3001 Jelgava, Latvia"},{"name":"Lietuvos In\u017einerijos Kolegija, Higher Education Institution, Tvirtov\u0117s al. 35, LT-50155 Kaunas, Lithuania"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-5332-8813","authenticated-orcid":false,"given":"Uldis","family":"Valainis","sequence":"additional","affiliation":[{"name":"Institute of Life Science and Technologies, Daugavpils University, Vienibas 13, LV-5400 Daugavpils, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-3040-9314","authenticated-orcid":false,"given":"Maris","family":"Nitcis","sequence":"additional","affiliation":[{"name":"Institute of Life Science and Technologies, Daugavpils University, Vienibas 13, LV-5400 Daugavpils, Latvia"}]},{"given":"Ieva","family":"Buske","sequence":"additional","affiliation":[{"name":"Jelgava State Gymnazium, M\u0101tera Street 44, LV-3001 Jelgava, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-7345-0253","authenticated-orcid":false,"given":"Jana","family":"Grave","sequence":"additional","affiliation":[{"name":"Institute of Landscape Architecture and Environmental Engineering, Latvia University of Life Sciences and Technologies, Liela Street 2, LV-3001 Jelgava, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1136-0146","authenticated-orcid":false,"given":"Normunds","family":"Stivrins","sequence":"additional","affiliation":[{"name":"Institute of Landscape Architecture and Environmental Engineering, Latvia University of Life Sciences and Technologies, Liela Street 2, LV-3001 Jelgava, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0838-8735","authenticated-orcid":false,"given":"Vilda","family":"Grybauskiene","sequence":"additional","affiliation":[{"name":"Lietuvos In\u017einerijos Kolegija, Higher Education Institution, Tvirtov\u0117s al. 35, LT-50155 Kaunas, Lithuania"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-2587-717X","authenticated-orcid":false,"given":"Gitana","family":"Vyciene","sequence":"additional","affiliation":[{"name":"Lietuvos In\u017einerijos Kolegija, Higher Education Institution, Tvirtov\u0117s al. 35, LT-50155 Kaunas, Lithuania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0504-4163","authenticated-orcid":false,"given":"Maris","family":"Bertins","sequence":"additional","affiliation":[{"name":"Faculty of Medicine and Life Sciences, University of Latvia, Jelgavas Str. 1, LV-1004 Riga, Latvia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5556-0345","authenticated-orcid":false,"given":"Jovita","family":"Pilecka-Ulcugaceva","sequence":"additional","affiliation":[{"name":"Institute of Landscape Architecture and Environmental Engineering, Latvia University of Life Sciences and Technologies, Liela Street 2, LV-3001 Jelgava, Latvia"}]}],"member":"1968","published-online":{"date-parts":[[2025,12,3]]},"reference":[{"key":"ref_1","unstructured":"(2017). General Requirements for the Competence of Testing and Calibration Laboratories (Standard No. ISO\/IEC 17025:2017)."},{"key":"ref_2","unstructured":"(2016). Water Quality\u2014Sampling\u2014Part 4: Guidance on Sampling from Lakes, Natural and Man-Made (Standard No. ISO 5667-4:2016)."},{"key":"ref_3","unstructured":"(2017). Water Quality\u2014Sampling\u2014Part 12: Guidance on Sampling of Bottom Sediments from Rivers, Lakes and Estuarine Areas (Standard No. ISO 5667-12:2017)."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Last, W.M., and Smol, J.P. (2002). Sediment core collection and extrusion. Tracking Environmental Change Using Lake Sediments. Volume 1: Basin Analysis, Coring, and Chronological Techniques, Kluwer Academic Publishers.","DOI":"10.1007\/0-306-47669-X"},{"key":"ref_5","unstructured":"U.S. EPA (2007). \u201cMethod 3051A (SW-846): Microwave Assisted Acid Digestion of Sediments, Sludges, and Oils,\u201d Revision 1."},{"key":"ref_6","unstructured":"(2016). Water Quality\u2014Application of Inductively Coupled Plasma Mass Spectrometry (ICP-MS)\u2014Part 2: Determination of Selected Elements Including Uranium Isotopes (Standard No. ISO 17294-2:2016)."}],"container-title":["Data"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2306-5729\/10\/12\/200\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T11:13:46Z","timestamp":1764760426000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2306-5729\/10\/12\/200"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,12,3]]},"references-count":6,"journal-issue":{"issue":"12","published-online":{"date-parts":[[2025,12]]}},"alternative-id":["data10120200"],"URL":"https:\/\/doi.org\/10.3390\/data10120200","relation":{},"ISSN":["2306-5729"],"issn-type":[{"value":"2306-5729","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,12,3]]}}}