Radioactivity of soil in Croatia I: naturally occurring decay chains

The assessment of environmental radioactivity much relies on radionuclide content in soil. This stems from the significant contribution of soil to both external and internal exposure to ionising radiation via direct emission of gamma radiation and soil-to-plant radionuclide transfer, respectively. T...

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Main Authors: Šoštarić Marko, Petrinec Branko, Avdić Mak, Petroci Ljerka, Kovačić Milica, Zgorelec Željka, Skoko Božena, Bituh Tomislav, Senčar Jasminka, Branica Gina, Franić Zdenko, Franulović Iva, Rašeta Davor, Bešlić Ivan, Babić Dinko
Format: Article
Language:English
Published: Sciendo 2021-03-01
Series:Arhiv za Higijenu Rada i Toksikologiju
Subjects:
Online Access:https://doi.org/10.2478/aiht-2021-72-3439
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author Šoštarić Marko
Petrinec Branko
Avdić Mak
Petroci Ljerka
Kovačić Milica
Zgorelec Željka
Skoko Božena
Bituh Tomislav
Senčar Jasminka
Branica Gina
Franić Zdenko
Franulović Iva
Rašeta Davor
Bešlić Ivan
Babić Dinko
author_facet Šoštarić Marko
Petrinec Branko
Avdić Mak
Petroci Ljerka
Kovačić Milica
Zgorelec Željka
Skoko Božena
Bituh Tomislav
Senčar Jasminka
Branica Gina
Franić Zdenko
Franulović Iva
Rašeta Davor
Bešlić Ivan
Babić Dinko
author_sort Šoštarić Marko
collection DOAJ
description The assessment of environmental radioactivity much relies on radionuclide content in soil. This stems from the significant contribution of soil to both external and internal exposure to ionising radiation via direct emission of gamma radiation and soil-to-plant radionuclide transfer, respectively. This motivated us to carry out a systematic research on the radioactivity of soil in Croatia to obtain relevant data that can be used as a basis for understanding the related effects of geomorphological, biogeographical, and climatological properties of the environment. We collected samples of the surface layer of uncultivated soil (0–10 cm) at 138 sites from all over the country and measured them for radionuclide activity concentrations by means of high-resolution gamma-ray spectrometry. This resulted in radioactivity maps containing data on activity concentrations of representative radionuclides in the environment. In this paper, which is the first in our two-part presentation, we focus on the naturally occurring 232Th and 238U decay chains and their correlations with the diversity of Croatian regions. For both of the chains, activity concentrations were the highest in the Dinaric region, the lowest in the Pannonian region, and intermediate in the Adriatic region. Relatively high concentrations of 226Ra in the soil of the Dinaric region implied a possibility of an enhanced emanation of its progeny 222Rn into the air. Activity concentrations of 210Pb were additionally elevated in areas with dense vegetation, most probably due to an atmospheric deposition of airborne 210Pb onto the surface of plants and their eventual decomposition on the ground.
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spelling doaj.art-e5afd85d4ad24519ab00e38b1b639f502022-12-21T21:19:19ZengSciendoArhiv za Higijenu Rada i Toksikologiju1848-63122021-03-0172161410.2478/aiht-2021-72-3439Radioactivity of soil in Croatia I: naturally occurring decay chainsŠoštarić Marko0Petrinec Branko1Avdić Mak2Petroci Ljerka3Kovačić Milica4Zgorelec Željka5Skoko Božena6Bituh Tomislav7Senčar Jasminka8Branica Gina9Franić Zdenko10Franulović Iva11Rašeta Davor12Bešlić Ivan13Babić Dinko14Institute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaUniversity of Zagreb Faculty of Agriculture, Department of General Agronomy, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaInstitute for Medical Research and Occupational Health, Zagreb, CroatiaThe assessment of environmental radioactivity much relies on radionuclide content in soil. This stems from the significant contribution of soil to both external and internal exposure to ionising radiation via direct emission of gamma radiation and soil-to-plant radionuclide transfer, respectively. This motivated us to carry out a systematic research on the radioactivity of soil in Croatia to obtain relevant data that can be used as a basis for understanding the related effects of geomorphological, biogeographical, and climatological properties of the environment. We collected samples of the surface layer of uncultivated soil (0–10 cm) at 138 sites from all over the country and measured them for radionuclide activity concentrations by means of high-resolution gamma-ray spectrometry. This resulted in radioactivity maps containing data on activity concentrations of representative radionuclides in the environment. In this paper, which is the first in our two-part presentation, we focus on the naturally occurring 232Th and 238U decay chains and their correlations with the diversity of Croatian regions. For both of the chains, activity concentrations were the highest in the Dinaric region, the lowest in the Pannonian region, and intermediate in the Adriatic region. Relatively high concentrations of 226Ra in the soil of the Dinaric region implied a possibility of an enhanced emanation of its progeny 222Rn into the air. Activity concentrations of 210Pb were additionally elevated in areas with dense vegetation, most probably due to an atmospheric deposition of airborne 210Pb onto the surface of plants and their eventual decomposition on the ground.https://doi.org/10.2478/aiht-2021-72-3439210pb222rn226ra232th238ugamma radiationhigh-resolution gamma-ray spectrometryrepresentative radionuclides210pb222rn226ra232th238ugama zračenjereprezentativni radionuklidivisokorezolucijska gamaspektrometrija
spellingShingle Šoštarić Marko
Petrinec Branko
Avdić Mak
Petroci Ljerka
Kovačić Milica
Zgorelec Željka
Skoko Božena
Bituh Tomislav
Senčar Jasminka
Branica Gina
Franić Zdenko
Franulović Iva
Rašeta Davor
Bešlić Ivan
Babić Dinko
Radioactivity of soil in Croatia I: naturally occurring decay chains
Arhiv za Higijenu Rada i Toksikologiju
210pb
222rn
226ra
232th
238u
gamma radiation
high-resolution gamma-ray spectrometry
representative radionuclides
210pb
222rn
226ra
232th
238u
gama zračenje
reprezentativni radionuklidi
visokorezolucijska gamaspektrometrija
title Radioactivity of soil in Croatia I: naturally occurring decay chains
title_full Radioactivity of soil in Croatia I: naturally occurring decay chains
title_fullStr Radioactivity of soil in Croatia I: naturally occurring decay chains
title_full_unstemmed Radioactivity of soil in Croatia I: naturally occurring decay chains
title_short Radioactivity of soil in Croatia I: naturally occurring decay chains
title_sort radioactivity of soil in croatia i naturally occurring decay chains
topic 210pb
222rn
226ra
232th
238u
gamma radiation
high-resolution gamma-ray spectrometry
representative radionuclides
210pb
222rn
226ra
232th
238u
gama zračenje
reprezentativni radionuklidi
visokorezolucijska gamaspektrometrija
url https://doi.org/10.2478/aiht-2021-72-3439
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