{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T17:51:14Z","timestamp":1785433874502,"version":"3.56.0"},"reference-count":107,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T00:00:00Z","timestamp":1783036800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010801","name":"Xunta de Galicia","doi-asserted-by":"publisher","award":["PGIDIT07PXIB236075PR"],"award-info":[{"award-number":["PGIDIT07PXIB236075PR"]}],"id":[{"id":"10.13039\/501100010801","id-type":"DOI","asserted-by":"publisher"}]},{"award":["PGIDIT07PXIB236075PR"],"award-info":[{"award-number":["PGIDIT07PXIB236075PR"]}],"id":[{"id":"https:\/\/ror.org\/0181xnw06","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/100014440","name":"project RODAS\u2014Ministerio de Ciencia, Innovaci\u00f3n y Universidades","doi-asserted-by":"publisher","award":["PID2024-155893NB-I00"],"award-info":[{"award-number":["PID2024-155893NB-I00"]}],"id":[{"id":"10.13039\/100014440","id-type":"DOI","asserted-by":"publisher"}]},{"award":["PID2024-155893NB-I00"],"award-info":[{"award-number":["PID2024-155893NB-I00"]}],"id":[{"id":"https:\/\/ror.org\/05r0vyz12","id-type":"ROR","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010801","name":"Grupos de Referencia Competitiva\u2014Xunta de Galicia","doi-asserted-by":"publisher","award":["ED431C 2025\/018"],"award-info":[{"award-number":["ED431C 2025\/018"]}],"id":[{"id":"10.13039\/501100010801","id-type":"DOI","asserted-by":"publisher"}]},{"award":["ED431C 2025\/018"],"award-info":[{"award-number":["ED431C 2025\/018"]}],"id":[{"id":"https:\/\/ror.org\/0181xnw06","id-type":"ROR","asserted-by":"publisher"}]},{"name":"ERC Consolidator Grant, PollutedPast","award":["101087832"],"award-info":[{"award-number":["101087832"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>In soils, mercury is found bound to organic matter, clays, and iron\/manganese oxides, which are also major constituents of archaeological pottery. Although pottery is the most researched cultural material with archaeometric techniques, its mercury content remains largely unexplored. To address this gap, we studied Late Neolithic Penha-type pottery from NW Spain. The Late Neolithic was a period of widespread exploitation and circulation of mercury-bearing resources. A total of 92 samples from five archaeological sites were analysed to determine their mercury, carbon, sulfur, and iron content, as well as their spectroscopic properties (FTIR-ATR). Mercury was detected in all samples, with concentrations ranging from 6 to 1086 ng g\u22121. Neither organic matter (C and S) nor iron compounds (Fe) were found to explain Hg concentrations, suggesting that diagenetic mercury incorporation was unlikely. Mercury was found to be related to kaolinite structural transformations, with concentrations decreasing with increasing degree of transformation. Kaolinite transformation depended on firing conditions (temperature and time), pointing to thermal desorption of the mercury present in the clay. The large observed variability most probably resulted from poorly controlled firing conditions. Nevertheless, whether mercury content reflects unintentional incorporation from naturally mercury-rich raw materials or a deliberate selection or addition (e.g., of cinnabar) during pottery manufacture remains to be further explored.<\/jats:p>","DOI":"10.3390\/molecules31132335","type":"journal-article","created":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T07:59:47Z","timestamp":1783065587000},"page":"2335","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["First Study of Mercury Content in Archaeological Pottery: Late-Neolithic Penha-Type from NW Spain"],"prefix":"10.3390","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0430-5760","authenticated-orcid":false,"given":"Antonio","family":"Mart\u00ednez Cortizas","sequence":"first","affiliation":[{"name":"EcoPast (GI-1553), Facultade de Biolox\u00eda, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain"},{"name":"Bolin Centre for Climate Research, Stockholm University, 10691 Stockholm, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0005-9749-1313","authenticated-orcid":false,"given":"Ain\u00e9","family":"Francos Gol\u00e1n","sequence":"additional","affiliation":[{"name":"EcoPast (GI-1553), Cross-Disciplinary Research Center on Environmental Technologies (CRETUS), \u00c1rea de Arqueolox\u00eda, Departamento de Historia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain"},{"name":"Archaeological Research Laboratory, Stockholm University, Wallenberglaboratoriet, 10691 Stockholm, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5152-6307","authenticated-orcid":false,"given":"Pilar","family":"Prieto Mart\u00ednez","sequence":"additional","affiliation":[{"name":"EcoPast (GI-1553), Interuniversity Research Center for Atlantic Cultural Landscapes (CISPAC), Facultade de Xeograf\u00eda e Historia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6499-226X","authenticated-orcid":false,"given":"Olalla","family":"L\u00f3pez-Costas","sequence":"additional","affiliation":[{"name":"EcoPast (GI-1553), Cross-Disciplinary Research Center on Environmental Technologies (CRETUS), \u00c1rea de Arqueolox\u00eda, Departamento de Historia, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain"},{"name":"Archaeological Research Laboratory, Stockholm University, Wallenberglaboratoriet, 10691 Stockholm, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Orton, C., and Hughes, M. 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