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1 Fajčíková K ., 1 Cvečková V . , 1 Rapant S .

Health risk estimate for groundwater and soil contamination in the Slovak Republic – a convenient tool for identification of risk areas. 1 Fajčíková K ., 1 Cvečková V . , 1 Rapant S.

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1 Fajčíková K ., 1 Cvečková V . , 1 Rapant S .

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  1. Health risk estimateforgroundwater and soilcontamination in the Slovak Republic – a convenienttoolforidentificationof risk areas 1Fajčíková K., 1Cvečková V., 1Rapant S. 1State Geological Institute of D. Štúr, Mlynskádolina 1, 817 04 Bratislava, Slovak Republic katarina.fajcikova@geology.sk 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  2. Originofthisresearch has gonewith new idea to findmechanismformapvisualizationofquantitativeassessmentofhealthrisksfromcontaminationofgeologicalenvironment in the Slovak Republic by combininginternationalprinciples and methodologyofhealth risk assessmentwithmethodologicalproceduresused in environmentalgeochemistry thatwouldbe easy to understand and usefull in decisionmakeprocess 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  3. Objectiveoftheworkwasbased on this idea and includes: Quantitativeestimationofhealth risk to residentsliving in the Slovak Republicofexposure to contaminatedgroundwater (adultpopulation) and soils (adult and childpopulation) Identificationofpotential risk areaswithinthe country based on mapvisualization. 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  4. Backgroundofthework • Identification and characterizationof: • distributionofchemicals in groundwater and soils, • contaminationofgeologicalenvironment and sourcesofcontamination, • Withinenvironmental-geochemicalmappingprogramme in the Slovak Republicat: • nationallevel – GeochemicalAtlasesofthe Slovak Republicatthescale 1:1 000 000, • regionallevel – environmental-geochemicalmapsofselectedregionsatthescale 1:50 000. 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  5. Backgroundofthework Sourcesofgroundwater and soilcontamination in the Slovak Republic: Main geogenic (natural) sources • specific rock typesand associatedmineralizationoccurrencesandoredeposits • (e.g. hydrothermalveinmineralizationassociatedwithgranitoidsand metamorphicrocks, low-sulphidemineralizationassociatedwithNeogenevolcanics, Paleozoicsediment-hostedmineralizations) Increasedgroundwater and soilcontentsofpotentiallytoxicelements: As, Pb, Zn, Cu, Hg, Sb Main anthropogenicsources • Miningactivities, Metallurgy, Agriculture, Wasteindustry, Otherindustrialactivities(chemicalindustry, refineriesetc.), Transport etc. Increasedgroundwater and soilcontentsofvariouschemicalelements / components: As, Cd, Hg, Pb, Ni, Fe, Mn, Al, Zn, Cu, Cr, NO3-, SO42-, NH4+etc. Geogenic-anthropogenicsources (e.g. historicalminingareas) 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  6. Backgroundofthework Output:Environmental – geochemicalregionalizationofthe Slovak Republic (Rapantet al. 2004) 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  7. Backgroundofthework Datasourceforhealth risk estimateforgroundwater and soilcontamination in the Slovak Republic Datasetsof 20 339 groundwatersamplesand 10 738 soilsamplesweretransformed in meanvaluesofrespectivechemicalelements and componentsfor single administrativeunitsofthe Slovak Republic (municipalities, districts, regions) based on griddatainterpolation -calculationofarithmeticmeansforgridcellsfallingintoboundsofeverysingle administrativeunit 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  8. Backgroundofthework Exampleforsurfacedistributionofarsenic in groundwaterinmunicipalitiesofthe Slovak Republic 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  9. Backgroundofthework Exampleforsurfacedistributionofarsenic in soilsinmunicipalitiesofthe Slovak Republic 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  10. Health risk estimate – US EPA methodology Dataevaluation Meanvaluesfor Slovak municipalitiesforfollowingcontaminantswithdefined toxicity datawereincluded in calculationofhealth risk estimates: Groundwater – As, Ba, Cd, Cu, F, Hg, Mn, NO3, Pb, Sb, Se, Zn Soils - As, B, Ba, Be, Cd, Cu, F, Hg, Mn, Mo, Ni, Pb, Sb, Se, Zn Exposureassessment Toxicity assessment (IRIS database) Chroniceffects: principleof REFERENCE DOSE (RfD) wasapplied („existenceof „safe“ dose) Groundwater and soilcontents(C) – specificvalue, Otherexposuredata– model valuesfor (US EPA) Exposureroute- ingestion Carcinogeniceffects: principleofcancerslopefactor (CSF) wasapplied („no doseissafe“) Risk characterization RISC Workbench– software usedforcalculations CHRONIC RISK CANCER RISK 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  11. Health risk estimate Inputexposureparameterswerefollowing: foradultpopulation 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  12. Health risk estimate Inputexposureparameterswerefollowing: forchildpopulation 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

  13. Health risk estimate DatabaseofIntegrated Risk InformationSystem (IRIS) wasusedfordefinitionofinput toxicity parameters: Chronic risk: referencedoses Cancer risk: Arsenicasknownhumancarcinogen- cancerslopefactorforarsenic 1.5 mg.kg-1-day 29thInternational conference SEGH, 8-12 JulyToulouse, FRANCE 2013

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