{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T03:35:05Z","timestamp":1790480105703,"version":"4.1.0"},"reference-count":17,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2023,12,12]],"date-time":"2023-12-12T00:00:00Z","timestamp":1702339200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Statutory Activities Fund of Poznan University of Technology","award":["0414\/SBAD\/3622"],"award-info":[{"award-number":["0414\/SBAD\/3622"]}]},{"name":"Statutory Activities Fund of Poznan University of Technology","award":["0911\/SBAD\/2304"],"award-info":[{"award-number":["0911\/SBAD\/2304"]}]},{"name":"Statutory Activities Fund of Poznan University of Technology","award":["0414\/SBAD\/3628"],"award-info":[{"award-number":["0414\/SBAD\/3628"]}]},{"name":"Statutory Activities Fund of Poznan University of Technology","award":["0711\/SBAD\/4616"],"award-info":[{"award-number":["0711\/SBAD\/4616"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>This work presents coal analyses for heavy metal content (Tl, Cu, Zn, Cd, Fe). The tested coal samples came from a Russian deposit in the Kuzbass Basin (Novosibirsk and Kemerovo Oblasts, near Kazakhstan) and from Poland. The concentration of thallium in coal was determined using DPASV\u2014differential pulse anodic stripping voltammetry\u2014and other metals were examined with FAAS, i.e., flame atomic absorption spectrometry. The study confirmed the presence of thallium in the tested coal sample. The coal samples from outside the European Union contained four times more thallium (the maximum content of thallium in coal has been determined to be 0.636 mg\u00b7kg\u22121) than the samples of Polish coal (where the maximum content of thallium was 0.055 mg\u00b7kg\u22121). Cadmium concentration was on average 1.99 mg\u00b7kg\u22121 in the samples from outside the European Union, and 1.2 mg\u00b7kg\u22121 in the samples of Polish coal. Zinc concentration in the samples from outside the European Union was on average 11.27 mg\u00b7kg\u22121, and in the samples of Polish coal approx. 7 mg\u00b7kg\u22121. In addition, iron concentration in all coal samples was determined as 14.96 mg\u00b7kg\u22121, whereas copper concentration in the samples from outside the European Union averaged as 3.96 mg\u00b7kg\u22121. The obtained results do not show any correlation between the presence of thallium and the presence of other metals. It is worth noting that heavy metals pose a threat to living organisms due to their persistence and bioaccumulation, particularly in the context of dust emissions to the atmosphere.<\/jats:p>","DOI":"10.3390\/molecules28248055","type":"journal-article","created":{"date-parts":[[2023,12,12]],"date-time":"2023-12-12T09:15:33Z","timestamp":1702372533000},"page":"8055","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Determination of Some Heavy Metals in European and Polish Coal Samples"],"prefix":"10.3390","volume":"28","author":[{"given":"Bo\u017cena","family":"Karbowska","sequence":"first","affiliation":[{"name":"Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4 St., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ewelina","family":"W\u0142\u00f3darzewska","sequence":"additional","affiliation":[{"name":"Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4 St., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"W\u0142odzimierz","family":"Zembrzuski","sequence":"additional","affiliation":[{"name":"Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4 St., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3993-4818","authenticated-orcid":false,"given":"Joanna","family":"Zembrzuska","sequence":"additional","affiliation":[{"name":"Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4 St., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9288-6379","authenticated-orcid":false,"given":"Edyta","family":"Janeba-Bartoszewicz","sequence":"additional","affiliation":[{"name":"Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3 Str., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9426-6891","authenticated-orcid":false,"given":"Jaros\u0142aw","family":"Bartoszewicz","sequence":"additional","affiliation":[{"name":"Faculty of Environmental Engineering and Energy, Poznan University of Technology, Piotrowo 3 Str., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2656-3800","authenticated-orcid":false,"given":"Jaros\u0142aw","family":"Selech","sequence":"additional","affiliation":[{"name":"Faculty of Civil and Transport Engineering, Poznan University of Technology, Piotrowo 3 Str., 60-965 Poznan, Poland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Yang, J., Xu, H., Meng, F., Guo, Q., He, T., Yang, Z., Qu, W., and Li, H. (2022). A Molten-Salt Pyrolysis Synthesis Strategy toward Sulfur-Functionalized Carbon for Elemental Mercury Removal from Coal-Combustion Flue Gas. Energies, 15.","DOI":"10.3390\/en15051840"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"640","DOI":"10.1007\/s10661-016-5647-y","article-title":"Presence of Thallium in the Environment: Sources of Contaminations, Distribution and Monitoring Methods","volume":"188","author":"Karbowska","year":"2016","journal-title":"Environ. Monit. Assess."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"637","DOI":"10.1007\/s10661-016-5648-x","article-title":"Speciation and Mobility of Volatile Heavy Metals (Cd, Pb, Tl) in Fly Ashes","volume":"188","author":"Trojanowska","year":"2016","journal-title":"Environ. Monit. Assess."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"184","DOI":"10.1016\/j.ecoenv.2012.02.026","article-title":"Thallium in Fractions of Sediments Formed during the 2004 Tsunami in Thailand","volume":"80","author":"Lukaszewski","year":"2012","journal-title":"Ecotoxicol. Environ. Saf."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"58","DOI":"10.3103\/S0361521907010120","article-title":"Thermodynamic Simulation of Transfer of Lead, Cadmium, and Zinc to the Gas Phase during Oxidative and Reductive Thermal Treatment of Coals from Some Coal Deposits of the Russian Federation","volume":"41","author":"Lebedeva","year":"2007","journal-title":"Solid Fuel Chem."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"380","DOI":"10.3390\/min5030380","article-title":"Mineralogical and Geochemical Characteristics of Late Permian Coals from the Mahe Mine, Zhaotong Coalfield, Northeastern Yunnan, China","volume":"5","author":"Wang","year":"2015","journal-title":"Minerals"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"10765","DOI":"10.1021\/es302040g","article-title":"Reconstructing the Biokinetic Processes of Oysters to Counteract the Metal Challenges: Physiological Acclimation","volume":"46","author":"Pan","year":"2012","journal-title":"Environ. Sci. Technol."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"290","DOI":"10.1016\/j.snb.2015.08.110","article-title":"Magnet Bioreporter Device for Ecological Toxicity Assessment on Heavy Metal Contamination of Coal Cinder Sites","volume":"222","author":"Jia","year":"2016","journal-title":"Sens. Actuators B Chem."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.coal.2012.03.003","article-title":"Mineralogical and Geochemie Compositions of the Coal in the Guanbanwusu Mine, Inner Mongolia, China, Further evidence for the existence of an Al (Ga and REE) ore deposit in the Jungar Coalfield","volume":"98","author":"Dai","year":"2012","journal-title":"Int. J. Coal Geol."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1016\/j.coal.2007.02.001","article-title":"Use of Laser Ablation ICP-MS to Determine Trace Element Distributions in Coals, with Special Reference to V, Ge and Al","volume":"72","author":"Spears","year":"2007","journal-title":"Int. J. Coal Geol."},{"key":"ref_11","first-page":"189","article-title":"Geochemistry and origin of elements of Upper Triassic Olang coal deposits in Northeastern Iran","volume":"5","author":"Taghipour","year":"2015","journal-title":"Geopersia"},{"key":"ref_12","first-page":"111","article-title":"Mineral matter, major and trace element content of the Af\u015fin\u2013Elbistan coals, Kahramanmara\u015f, Turkey","volume":"144\u2013145","author":"Cicioglu","year":"2015","journal-title":"Int. J. Coal Geol."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"55","DOI":"10.1016\/j.talanta.2013.04.036","article-title":"Sequential Determination of Cd and Cr In Biomass Samples and Their Ashes Using High-Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry and Direct Solid Sample Analysis","volume":"115","author":"Duarte","year":"2013","journal-title":"Talanta"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"300","DOI":"10.1080\/19392699.2013.824430","article-title":"Evaluation of Reduction Potential of Selected Heavy Metals from an Indian Coal by Conventional Coal Cleaning","volume":"33","author":"Das","year":"2013","journal-title":"Int. J. Coal Prep. Util."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"385","DOI":"10.1007\/BF00468652","article-title":"Determination of Thallium in Minerals and Coal by AAS and ICP-AES","volume":"306","author":"Berndt","year":"1981","journal-title":"Fresenius\u2019 Z. Anal. Chem."},{"key":"ref_16","unstructured":"Paulo, A., Bojanowska, I., and Piaseczna, A. (2007, January 19\u201324). Thallium in Brown and Hard Coals of Poland. Geochemica et Cosmochemica Acta. Proceedings of the 17th Annual Goldschmidt Conference, Cologne, Germany. Available online: https:\/\/www.academia.edu\/18288510."},{"key":"ref_17","unstructured":"Gawlik, L. (2013). W\u0119giel dla Polskiej Energetyki w Perspektywie 2050 Roku\u2014Analizy Scenariuszowe, G\u00f3rnicza Izba Przemys\u0142owo-Handlowa, Wydawnictwo Instytutu GSMiE PAN. Available online: http:\/\/www.giph.com.pl\/giph\/attachments\/article\/278\/Wegiel_dla_polskiej_energetyki_2050_GIPH_MINPAN.pdf."}],"container-title":["Molecules"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1420-3049\/28\/24\/8055\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T21:37:30Z","timestamp":1760132250000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1420-3049\/28\/24\/8055"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,12,12]]},"references-count":17,"journal-issue":{"issue":"24","published-online":{"date-parts":[[2023,12]]}},"alternative-id":["molecules28248055"],"URL":"https:\/\/doi.org\/10.3390\/molecules28248055","relation":{},"ISSN":["1420-3049"],"issn-type":[{"value":"1420-3049","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,12,12]]}}}