{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T00:42:21Z","timestamp":1791592941195,"version":"4.3.4"},"reference-count":76,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,6,16]],"date-time":"2024-06-16T00:00:00Z","timestamp":1718496000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Toxics"],"abstract":"<jats:p>The mercury cell manufacturing process, which has been extensively used in chlor-alkali plants to produce chlorine and caustic soda by electrolysis, represents a major source of Hg environmental pollution. At Saline di Volterra (Tuscany, Italy), solution mining by pumping water into halite deposits was applied to produce brines for a mercury-cell chlor-alkali plant. The Hg-contaminated, exhausted brines were pumped back at depth into the rock salt field in order to renew the available resources. Activities ceased in 1994, following the leakage dispersion of highly contaminated Hg(0)-bearing brines into the environment. The mercury content in the soil, measured during a survey conducted in 2000, reached 334 mg\/kg, highlighting diffuse contamination in the floodplain. By 2009, the Hg concentration had generally decreased and was mostly confined to the topsoil layer. In order to evaluate the present Hg soil pollution, a geochemical survey was carried out in 2023, almost thirty years after the contamination event. The obtained data indicated the occurrence of legacy Hg, which reached 25.5 mg\/kg in some soil samples. Speciation analysis for the most contaminated soil revealed that Hg(0) represented about 17.3% of the total Hg and that water-soluble and organic Hg fractions were negligible. These results suggest that the originally released metallic mercury has volatilized and likely oxidized, becoming practically immobile in the soil. A risk assessment, performed by applying Hg speciation analysis, indicated that the mercury in the soil does not carry a risk of non-cancerous effects for different exposure routes in case of subsequent use of the site and that the formerly contaminated area can now be converted into a leisure area.<\/jats:p>","DOI":"10.3390\/toxics12060436","type":"journal-article","created":{"date-parts":[[2024,6,17]],"date-time":"2024-06-17T08:48:31Z","timestamp":1718614111000},"page":"436","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["The Legacy of Hg Contamination in a Past Mining Area (Tuscany, Italy): Hg Speciation and Health Risk Assessment"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1330-4447","authenticated-orcid":false,"given":"Simone","family":"Arrighi","sequence":"first","affiliation":[{"name":"Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabrizio","family":"Franceschini","sequence":"additional","affiliation":[{"name":"Environmental Protection Agency of Tuscany (ARPAT), Via Vittorio Veneto, 56127 Pisa, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2390-5748","authenticated-orcid":false,"given":"Riccardo","family":"Petrini","sequence":"additional","affiliation":[{"name":"Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1274-1044","authenticated-orcid":false,"given":"Silvia","family":"Fornasaro","sequence":"additional","affiliation":[{"name":"Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4562-2375","authenticated-orcid":false,"given":"Lisa","family":"Ghezzi","sequence":"additional","affiliation":[{"name":"Department of Earth Science, University of Pisa, Via S. Maria 53, 56126 Pisa, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,6,16]]},"reference":[{"key":"ref_1","unstructured":"WHO (2017). Ten Chemicals of Major Health Concern, World Health Organization."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"545","DOI":"10.1016\/j.envres.2017.08.051","article-title":"The toxicology of mercury: Current research and emerging trends","volume":"159","author":"Dadar","year":"2017","journal-title":"Environ. Res."},{"key":"ref_3","first-page":"431","article-title":"Toxicity of mercury in humans: A review","volume":"9","author":"Tariq","year":"2019","journal-title":"J. Clin. Toxicol."},{"key":"ref_4","unstructured":"EU (2008). Directive 2008\/105\/EC of the European Parliament and of the Council. Off. J. Eur. Union, Available online: https:\/\/eur-lex.europa.eu\/eli\/dir\/2008\/105\/oj."},{"key":"ref_5","unstructured":"(2024, May 03). ATSDR Agency for Toxic Substances and Disease Registry. ATSDR\u2019s Substance Priority List, Available online: www.atsdr.cdc.gov\/spl\/index.html."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1007\/s13280-017-1004-9","article-title":"A review of global environmental mercury processes in response to human and natural perturbations: Changes of emissions, climate, and land use","volume":"47","author":"Obrist","year":"2018","journal-title":"Ambio"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Ceccatelli, S., and Aschner, M. (2012). Methylmercury and Neurotoxicity, Springer.","DOI":"10.1007\/978-1-4614-2383-6"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Elwaleed, A., Jeong, H., Abdelbagi, A.H., Quynh, N.T., Agusa, T., Ishibashi, Y., and Arizono, K. (2024). Human Health Risk Assessment from Mercury-Contaminated Soil and Water in Abu Hamad Mining Market, Sudan. Toxics, 12.","DOI":"10.3390\/toxics12020112"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"436","DOI":"10.1016\/j.jclepro.2004.08.010","article-title":"Origin and consumption of mercury in small-scale gold mining","volume":"14","author":"Veiga","year":"2006","journal-title":"J. Clean. Prod."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1016\/j.pecs.2019.02.001","article-title":"A review on mercury in coal combustion process: Content and occurrence forms in coal, transformation, sampling methods, emission, and control technologies","volume":"73","author":"Zhao","year":"2019","journal-title":"Prog. Energy Combust. Sci."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1016\/j.apr.2018.07.002","article-title":"Mass balance and behavior of mercury in oil refinery facilities","volume":"10","author":"Mojammal","year":"2019","journal-title":"Atmos. Pollut. Res."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/j.jes.2015.07.019","article-title":"Mercury mass flow in iron and steel production process and its implications for mercury emission control","volume":"43","author":"Wang","year":"2016","journal-title":"J. Environ. Sci."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1016\/j.jhazmat.2015.09.042","article-title":"Characteristics of mercury cycling in the cement production process","volume":"302","author":"Wang","year":"2016","journal-title":"J. Hazard. Mater."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"355","DOI":"10.1016\/j.envres.2009.01.008","article-title":"Human exposure to mercury in the vicinity of chlor-alkali plant","volume":"109","author":"Horvat","year":"2009","journal-title":"Environ. Res."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"391","DOI":"10.1016\/j.watres.2013.10.024","article-title":"Extremely elevated methyl mercury levels in water, sediment and organisms in a Romanian reservoir affected by release of mercury from a chlor-alkali plant","volume":"49","author":"Bravo","year":"2014","journal-title":"Water Res."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1016\/S0048-9697(01)00885-3","article-title":"Binding and mobility of mercury in soils contaminated by emissions from chlor-alkali plants","volume":"284","author":"Biester","year":"2002","journal-title":"Sci. Total Environ."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"597","DOI":"10.1016\/j.atmosenv.2003.09.057","article-title":"Fugitive mercury emissions from a chlor-alkali factory: Sources and fluxes to the atmosphere","volume":"38","author":"Southworth","year":"2004","journal-title":"Atmos. Environ."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1007\/s11270-008-9679-y","article-title":"Soil remediation\u2013mercury speciation in soil and vapor phase during thermal treatment","volume":"193","author":"Taube","year":"2008","journal-title":"Water Air Soil Pollut."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"22542","DOI":"10.1007\/s11356-016-7405-7","article-title":"Environmental quality assessment of reservoirs impacted by Hg from chlor-alkali technologies: Case study of a recovery","volume":"23","author":"Vasiliu","year":"2016","journal-title":"Environ. Sci. Pollut. Res."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Guney, M., Kumisbek, A., Akimzhanova, Z., Kismelyeva, S., Beisova, K., Zhakiyenova, A., Inglezakis, V., and Karaca, F. (2021). Environmental partitioning, spatial distribution, and transport of atmospheric mercury (Hg) originating from a site of former chlor-alkali plant. Atmosphere, 12.","DOI":"10.3390\/atmos12020275"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"667","DOI":"10.1007\/BF00342308","article-title":"The behavior of mercury in the soil with special emphasis on complexation and adsorption processes: A review of the literature","volume":"56","author":"Schuster","year":"1991","journal-title":"Water Air Soil Pollut."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"747","DOI":"10.1016\/j.envint.2019.03.019","article-title":"Mercury speciation, transformation, and transportation in soils, atmospheric flux, and implications for risk management: A critical review","volume":"126","author":"Hou","year":"2019","journal-title":"Environ. Int."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1007\/s00128-009-9688-6","article-title":"Mercury, cadmium, and lead biogeochemistry in the soil\u2013plant\u2013insect system in Huludao City","volume":"83","author":"Zhang","year":"2009","journal-title":"Bull. Environ. Contam. Toxicol."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"123138","DOI":"10.1016\/j.jhazmat.2020.123138","article-title":"A review on phytoremediation of mercury contaminated soils","volume":"400","author":"Liu","year":"2020","journal-title":"J. Hazard. Mater."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"36","DOI":"10.1016\/j.scitotenv.2015.08.116","article-title":"Mercury (II) reduction and co-precipitation of metallic mercury on hydrous ferric oxide in contaminated groundwater","volume":"539","author":"Richard","year":"2016","journal-title":"Sci. Total Environ."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"660058","DOI":"10.3389\/fenvc.2021.660058","article-title":"Abiotic Reduction of Mercury (II) in the Presence of Sulfidic Mineral Suspensions","volume":"2","author":"Coulibaly","year":"2021","journal-title":"Front. Environ. Chem."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"21889","DOI":"10.1029\/1999JD900194","article-title":"Processes influencing the emission of mercury from soils: A conceptual model","volume":"104","author":"Zhang","year":"1999","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"331","DOI":"10.1016\/j.scitotenv.2011.09.042","article-title":"Effects of sulfate reducing bacteria and sulfate concentrations on mercury methylation in freshwater sediments","volume":"424","author":"Shao","year":"2012","journal-title":"Sci. Total Environ."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1016\/j.scitotenv.2005.09.043","article-title":"Abiotic methylation of mercury in the aquatic environment","volume":"368","author":"Celo","year":"2006","journal-title":"Sci. Total Environ."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2706","DOI":"10.1016\/j.apgeochem.2007.07.005","article-title":"Mercury distribution and transport in a contaminate driver system in Kazakhstan and associated impacts on aquatic biota","volume":"22","author":"Ullrich","year":"2007","journal-title":"Appl. Geochem."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"911","DOI":"10.1016\/j.chemosphere.2010.10.050","article-title":"Importance of sulfate reducing bacteria in mercury methylation and demethylation in periphyton from Bolivian Amazon region","volume":"82","author":"Hintelmann","year":"2011","journal-title":"Chemosphere"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1007\/s10498-015-9283-x","article-title":"Seasonal cycling and transport of mercury and methylmercury in the turbidity maximum of the Delaware estuary","volume":"22","author":"Gosnell","year":"2016","journal-title":"Aquat. Geochem."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1016\/j.apgeochem.2016.10.011","article-title":"Quantification of methylmercury and geochemistry of mercury in sediments from a contaminated area of Descoberto (MG), Brazil","volume":"75","author":"Mendes","year":"2016","journal-title":"Appl. Geochem."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1021\/bk-2003-0835.ch019","article-title":"Geochemical and Biological Controls over Methylmercury Production and Degradation in Aquatic Ecosystems","volume":"Volume 835","author":"Benoit","year":"2002","journal-title":"Biogeochemistry of Environmentally Important Trace Elements"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"693","DOI":"10.1080\/10643389.2017.1326277","article-title":"Cycling of mercury in the environment: Sources, fate, and human health implications: A review","volume":"47","author":"Beckers","year":"2017","journal-title":"Crit. Rev. Environ. Sci. Technol."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"134749","DOI":"10.1016\/j.scitotenv.2019.134749","article-title":"Critical review of mercury speciation, bioavailability, toxicity, and detoxification in soil-plant environment: Ecotoxicology and health risk assessment","volume":"711","author":"Shahid","year":"2020","journal-title":"Sci. Total Environ."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"85","DOI":"10.1016\/j.marchem.2004.06.002","article-title":"Seasonal cycling of mercury and monomethyl mercury in the Venice Lagoon (Italy)","volume":"91","author":"Bloom","year":"2004","journal-title":"Mar. Chem."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"5102","DOI":"10.1021\/es0341485","article-title":"Mercury speciation by X-ray absorption fine structure spectroscopy and sequential chemical extractions: A comparison of speciation methods","volume":"37","author":"Kim","year":"2013","journal-title":"Environ. Sci. Technol."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1123","DOI":"10.1134\/S1061934814120028","article-title":"The use of thermal desorption in the speciation analysis of mercury in soil, sediments, and tailings","volume":"69","year":"2014","journal-title":"J. Anal. Chem."},{"key":"ref_40","first-page":"427","article-title":"Determination of mercury species using thermal desorption analysis in AAS","volume":"68","year":"2014","journal-title":"Chem. Pap."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"1270","DOI":"10.1080\/00032719.2022.2125984","article-title":"Novel determination of elemental mercury in silicate rock by thermal desorption","volume":"56","author":"Ghezzi","year":"2023","journal-title":"Anal. Lett."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"249","DOI":"10.1016\/S0037-0738(99)00118-9","article-title":"Gypsum\u2013anhydrite transformations in Messinian evaporites of central Tuscany (Italy)","volume":"130","author":"Testa","year":"2000","journal-title":"Sediment. Geol."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"5054","DOI":"10.1002\/2013GC004946","article-title":"Paleoclimate reconstruction during the Messinian evaporative drawdown of the Mediterranean Basin: Insights from microthermometry on halite fluid inclusions","volume":"14","author":"Speranza","year":"2013","journal-title":"Geochem. Geophys. Geosyst."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Warren, J.K. (2016). Evaporites. A Geological Compendium, Springer. [2nd ed.].","DOI":"10.1007\/978-3-319-13512-0"},{"key":"ref_45","doi-asserted-by":"crossref","unstructured":"Solari, L., Montalti, R., Barra, A., Monserrat, O., Bianchini, S., and Crosetto, M. (2020). Multi-temporal satellite interferometry for fast-motion detection: An application to salt solution mining. Remote Sens., 12.","DOI":"10.3390\/rs12233919"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1016\/j.envpol.2004.07.027","article-title":"Mercury assessment and evaluation of its impact on fish in the Cecina River basin (Tuscany, Italy)","volume":"135","author":"Scerbo","year":"2005","journal-title":"Environ. Pollut."},{"key":"ref_47","unstructured":"Masciandaro, G., Doni, S., Macci, C., Peruzzi, E., Scatena, M., and Di Giovanni, F. (2024, May 03). Fitotrattamento dei Suoli Contaminati da Hg nell\u2019area Canova\u2014Relazione Finale. CNR-IRET, 2019, Technical Report. (In Italian)."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"570","DOI":"10.1007\/s00128-015-1521-9","article-title":"The influence of sample drying procedures on mercury concentrations analyzed in soils","volume":"94","author":"Rohovec","year":"2015","journal-title":"Bull. Environ. Contam. Toxicol."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"1075","DOI":"10.1007\/s00254-007-1056-4","article-title":"Mercury mobility and bioavailability in soil from contaminated area","volume":"55","author":"Boszke","year":"2008","journal-title":"Environ. Geol."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1016\/j.geoderma.2013.08.010","article-title":"Extraction of mercury water-soluble fraction from soils: An optimization study","volume":"213","author":"Reis","year":"2014","journal-title":"Geoderma"},{"key":"ref_51","unstructured":"(2004). Soil Quality\u2014Determination of EC (Standard No. ISO 11265)."},{"key":"ref_52","first-page":"577","article-title":"Distribuzione del mercurio nelle acque superficiali","volume":"36","year":"1966","journal-title":"Atti Soc. Tosc. Sci. Nat."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"975","DOI":"10.1016\/0043-1354(80)90143-8","article-title":"An ecological risk index for aquatic pollution control. A sedimentological approach","volume":"14","author":"Hakanson","year":"1980","journal-title":"Water Res."},{"key":"ref_54","first-page":"108","article-title":"Index of geoaccumulation in sediments of the Rhine River","volume":"2","year":"1969","journal-title":"Geojournal"},{"key":"ref_55","unstructured":"ASTM (2000). Standard Provisional Guide for Risk-Based Corrective Action, Report E 2081-00."},{"key":"ref_56","unstructured":"US EPA (2024, May 03). Soil Screening Guidance: Technical Background Document, Available online: http:\/\/oehha.ca.gov\/chemicals\/mercury-inorganic."},{"key":"ref_57","unstructured":"US EPA (2002). Supplemental Guidance for Developing Soil Screening Levels for Superfund Sites, Solid Waste and Remedial Response, OSWER 9355.4-24."},{"key":"ref_58","unstructured":"US EPA (2024, May 03). Regional Screening Levels (RSLs)\u2014Generic Tables, Available online: https:\/\/www.epa.gov\/risk."},{"key":"ref_59","unstructured":"US EPA (1989). Risk Assessment Guidance for Superfund\u2014Volume I: Human Health Evaluation Manual. Part A, EPA\/540\/1-89\/002."},{"key":"ref_60","unstructured":"US UT (2024, May 03). RAIS: Risk Assessment Information System. Chemical Risk Calculator User\u2019s Guide, Available online: https:\/\/rais.ornl.gov\/tools\/rais_chemical_risk_guide.html."},{"key":"ref_61","unstructured":"US EPA (2009). Risk Assessment Guidance for Superfund\u2014Volume I: Human Health Evaluation Manual (Part F, Supplemental Guidance for Inhalation Risk Assessment), EPA-540-R-070-002."},{"key":"ref_62","unstructured":"Cowherd, C., Muleski, G.E., Englehart, P.J., and Gillett, D.A. (1985). Rapid Assessment of Exposure to Particulate Emissions from Surface Contamination Sites, Midwest Research Institute. PB85-192219."},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1029\/WR026i001p00013","article-title":"Evaluation of volatilization by organic chemicals residing below the soil surface","volume":"26","author":"Jury","year":"1990","journal-title":"Water Resour. Res."},{"key":"ref_64","unstructured":"US EPA (2024, May 03). Regional Screening Level (RSLs)\u2014Equations, Available online: https:\/\/www.epa.gov\/risk\/regional-screening-levels-rsls-equations#res."},{"key":"ref_65","unstructured":"US EPA (2014). Human Health Evaluation Manual, Supplemental Guidance: Update of Standard Default Exposure Factors, OSWER directive 9200.1\u2013120."},{"key":"ref_66","unstructured":"US TCEQ (2024, May 03). TRRP PCL Tables. Texas Commission of Environmental Quality, Available online: https:\/\/www.tceq.texas.gov\/downloads\/remediation\/trrp\/march-2023-pcl-tables.pdf."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"114150","DOI":"10.1016\/j.geoderma.2019.114150","article-title":"The kinetics of mercury vaporization in soil during low-temperature thermal treatment","volume":"363","author":"Park","year":"2020","journal-title":"Geoderma"},{"key":"ref_68","unstructured":"OEHHA (2024, May 03). Technical Supporting Document for Noncancer RELs, Appendix D1, Available online: https:\/\/oehha.ca.gov\/chemicals\/mercury-inorganic."},{"key":"ref_69","unstructured":"US UT (2024, May 03). RAIS: Risk Assessment Information System. Rais Toxicity Value and Physical Parameters Search, Available online: https:\/\/rais.ornl.gov\/cgi-bin\/tools\/TOX_search?select=chemtox."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1016\/j.ecoenv.2018.11.054","article-title":"Adsorption of gaseous elemental mercury on soils: Influence of chemical and\/or mineralogical characteristics","volume":"170","author":"Montoya","year":"2019","journal-title":"Ecotoxicol. Environ. Saf."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"469","DOI":"10.1007\/s11356-012-0874-4","article-title":"Modelling the adsorption of mercury onto natural and aluminium pillared clays","volume":"20","author":"Eloussaief","year":"2013","journal-title":"Environ. Sci. Pollut. Res."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1016\/j.envpol.2009.07.001","article-title":"Dynamics of mercury fluxes and their controlling factors in large Hg-polluted floodplain areas","volume":"158","author":"Rinklebe","year":"2010","journal-title":"Environ. Pollut."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"1069","DOI":"10.1007\/BF01189767","article-title":"The biogeochemical cycling of Hg in forests: Alternative methods for quantifying total deposition and soil emission","volume":"80","author":"Johnson","year":"1995","journal-title":"Water Air Soil Pollut."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"830","DOI":"10.1016\/j.jhazmat.2006.01.018","article-title":"Formation of cinnabar\u2014Estimation of favorable conditions in a proposed Swedish repository","volume":"136","author":"Svensson","year":"2006","journal-title":"J. Hazard. Mater."},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"5336","DOI":"10.1021\/acs.est.3c07276","article-title":"Legacy Mercury Re-emission and Subsurface Migration at Contaminated Sites Constrained by Hg Isotopes and Chemical Speciation","volume":"58","author":"Zhu","year":"2024","journal-title":"Environ. Sci. Technol."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"1445","DOI":"10.1021\/es00020a013","article-title":"Heuristic model for predicting the intrusion rate of contaminant vapors into buildings","volume":"8","author":"Johnson","year":"1991","journal-title":"Environ. Sci. Technol."}],"container-title":["Toxics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2305-6304\/12\/6\/436\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T14:59:42Z","timestamp":1760108382000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2305-6304\/12\/6\/436"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,6,16]]},"references-count":76,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2024,6]]}},"alternative-id":["toxics12060436"],"URL":"https:\/\/doi.org\/10.3390\/toxics12060436","relation":{},"ISSN":["2305-6304"],"issn-type":[{"value":"2305-6304","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,6,16]]}}}