Tokonami, S.

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  • Tokonami, S. (4)
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Author's Bibliography

Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe)

Sahoo, Sarata Kumar; Žunić, Zora S.; Kritsananuwat, Rawiwan; Zagrodzki, P.; Bossew, Peter; Veselinović, Nenad; Mishra, S.; Yonehara, H.; Tokonami, S.

(2015)

TY  - JOUR
AU  - Sahoo, Sarata Kumar
AU  - Žunić, Zora S.
AU  - Kritsananuwat, Rawiwan
AU  - Zagrodzki, P.
AU  - Bossew, Peter
AU  - Veselinović, Nenad
AU  - Mishra, S.
AU  - Yonehara, H.
AU  - Tokonami, S.
PY  - 2015
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/579
AB  - Human hair and nails can be considered as bio-indicators of the public exposure to certain natural radionuclides and other toxic metals over a long period of months or even years. The level of elements in hair and nails usually reflect their levels in other tissues of body. Nigka Banja, a spa town located in southern Serbia, with locally high natural background radiation was selected for the study. To assess public exposure to the trace elements, hair and nail samples were collected and analyzed. The concentrations of uranium, thorium and some trace and toxic elements (Mn, Ni, Cu, Sr, Cd, and Cs) were determined using inductively coupled plasma mass spectrometry (ICP-MS). U and Th concentrations in hair varied from 0.0002 to 0.0771 mu g/g and from 0.0002 to 0.0276 mu g/g, respectively. The concentrations in nails varied from 0.0025 to 0.0447 mu g/g and from 0.0023 to 0.0564 mu/g for U and Th, respectively. We found significant correlations between some elements in hair and nails. Also indications of spatial clustering of high values could be found. However, this phenomenon as well as the large variations in concentrations of heavy metals in hair and nail could not be explained. As hypotheses, we propose possible exposure pathways which may explain the findings, but the current data does not allow testing them. Crown Copyright (C) 2015 Published by Elsevier Ltd. All rights reserved.
T2  - Journal of Environmental Radioactivity
T1  - Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe)
VL  - 145
SP  - 66
EP  - 77
DO  - 10.1016/j.jenvrad.2015.03.020
ER  - 
@article{
author = "Sahoo, Sarata Kumar and Žunić, Zora S. and Kritsananuwat, Rawiwan and Zagrodzki, P. and Bossew, Peter and Veselinović, Nenad and Mishra, S. and Yonehara, H. and Tokonami, S.",
year = "2015",
abstract = "Human hair and nails can be considered as bio-indicators of the public exposure to certain natural radionuclides and other toxic metals over a long period of months or even years. The level of elements in hair and nails usually reflect their levels in other tissues of body. Nigka Banja, a spa town located in southern Serbia, with locally high natural background radiation was selected for the study. To assess public exposure to the trace elements, hair and nail samples were collected and analyzed. The concentrations of uranium, thorium and some trace and toxic elements (Mn, Ni, Cu, Sr, Cd, and Cs) were determined using inductively coupled plasma mass spectrometry (ICP-MS). U and Th concentrations in hair varied from 0.0002 to 0.0771 mu g/g and from 0.0002 to 0.0276 mu g/g, respectively. The concentrations in nails varied from 0.0025 to 0.0447 mu g/g and from 0.0023 to 0.0564 mu/g for U and Th, respectively. We found significant correlations between some elements in hair and nails. Also indications of spatial clustering of high values could be found. However, this phenomenon as well as the large variations in concentrations of heavy metals in hair and nail could not be explained. As hypotheses, we propose possible exposure pathways which may explain the findings, but the current data does not allow testing them. Crown Copyright (C) 2015 Published by Elsevier Ltd. All rights reserved.",
journal = "Journal of Environmental Radioactivity",
title = "Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe)",
volume = "145",
pages = "66-77",
doi = "10.1016/j.jenvrad.2015.03.020"
}
Sahoo, S. K., Žunić, Z. S., Kritsananuwat, R., Zagrodzki, P., Bossew, P., Veselinović, N., Mishra, S., Yonehara, H.,& Tokonami, S.. (2015). Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe). in Journal of Environmental Radioactivity, 145, 66-77.
https://doi.org/10.1016/j.jenvrad.2015.03.020
Sahoo SK, Žunić ZS, Kritsananuwat R, Zagrodzki P, Bossew P, Veselinović N, Mishra S, Yonehara H, Tokonami S. Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe). in Journal of Environmental Radioactivity. 2015;145:66-77.
doi:10.1016/j.jenvrad.2015.03.020 .
Sahoo, Sarata Kumar, Žunić, Zora S., Kritsananuwat, Rawiwan, Zagrodzki, P., Bossew, Peter, Veselinović, Nenad, Mishra, S., Yonehara, H., Tokonami, S., "Distribution of uranium, thorium and some stable trace and toxic elements in human hair and nails in Niska Banja Town, a high natural background radiation area of Serbia (Balkan Region, South-East Europe)" in Journal of Environmental Radioactivity, 145 (2015):66-77,
https://doi.org/10.1016/j.jenvrad.2015.03.020 . .
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Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niska Banja, Serbia

Vaupotič, Janja; Streil, T.; Tokonami, S.; Žunić, Zora S.

(2013)

TY  - JOUR
AU  - Vaupotič, Janja
AU  - Streil, T.
AU  - Tokonami, S.
AU  - Žunić, Zora S.
PY  - 2013
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/5768
AB  - In NiUka Banja, a spa town in a radon-prone area in southern Serbia, radon (Rn-222) and thoron (Rn-220) activity concentrations were measured continuously for one day in indoor air of 10 dwellings with a SARAD RTM 2010-2 Radon/Thoron Monitor, and equilibrium factor between radon and its decay products and the fraction of unattached radon decay products with a SARAD EQF 3020-2 Equilibrium Factor Monitor. Radon concentration in winter time ranged from 26 to 73 100 Bq m(3) and that of thoron, from 10 to 8650 Bq m(3). In the same period, equilibrium factor and the unattached fraction varied in the range of 0.08 to 0.90 and 0.01 to 0.27, respectively. One-day effective doses were calculated and were in winter conditions from 4 to 2599 Sv d(1) for radon and from 0.2 to 73 Sv d(1) for thoron.
T2  - Radiation Protection Dosimetry
T1  - Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niska Banja, Serbia
VL  - 157
IS  - 3
SP  - 375
EP  - 382
DO  - 10.1093/rpd/nct145
ER  - 
@article{
author = "Vaupotič, Janja and Streil, T. and Tokonami, S. and Žunić, Zora S.",
year = "2013",
abstract = "In NiUka Banja, a spa town in a radon-prone area in southern Serbia, radon (Rn-222) and thoron (Rn-220) activity concentrations were measured continuously for one day in indoor air of 10 dwellings with a SARAD RTM 2010-2 Radon/Thoron Monitor, and equilibrium factor between radon and its decay products and the fraction of unattached radon decay products with a SARAD EQF 3020-2 Equilibrium Factor Monitor. Radon concentration in winter time ranged from 26 to 73 100 Bq m(3) and that of thoron, from 10 to 8650 Bq m(3). In the same period, equilibrium factor and the unattached fraction varied in the range of 0.08 to 0.90 and 0.01 to 0.27, respectively. One-day effective doses were calculated and were in winter conditions from 4 to 2599 Sv d(1) for radon and from 0.2 to 73 Sv d(1) for thoron.",
journal = "Radiation Protection Dosimetry",
title = "Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niska Banja, Serbia",
volume = "157",
number = "3",
pages = "375-382",
doi = "10.1093/rpd/nct145"
}
Vaupotič, J., Streil, T., Tokonami, S.,& Žunić, Z. S.. (2013). Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niska Banja, Serbia. in Radiation Protection Dosimetry, 157(3), 375-382.
https://doi.org/10.1093/rpd/nct145
Vaupotič J, Streil T, Tokonami S, Žunić ZS. Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niska Banja, Serbia. in Radiation Protection Dosimetry. 2013;157(3):375-382.
doi:10.1093/rpd/nct145 .
Vaupotič, Janja, Streil, T., Tokonami, S., Žunić, Zora S., "Diurnal variations of radon and thoron activity concentrations and effective doses in dwellings in Niska Banja, Serbia" in Radiation Protection Dosimetry, 157, no. 3 (2013):375-382,
https://doi.org/10.1093/rpd/nct145 . .
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Distribution of Uranium and Some Selected Trace Metals in Human Scalp Hair from Balkans

Žunić, Zora S.; Tokonami, S.; Mishra, S.; Arae, Hideki; Kritsananuwat, Rawiwan; Sahoo, Sarata Kumar

(2012)

TY  - JOUR
AU  - Žunić, Zora S.
AU  - Tokonami, S.
AU  - Mishra, S.
AU  - Arae, Hideki
AU  - Kritsananuwat, Rawiwan
AU  - Sahoo, Sarata Kumar
PY  - 2012
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6988
AB  - The possible consequences of the use of depleted uranium (DU) used in Balkan conflicts in 1995 and 1999 for the people and the environment of this reason need attention. The heavy metal content in human hair may serve as a good indicator of dietary, environmental and occupational exposures to the metal compounds. The present work summarises the distribution of uranium and some selected trace metals such as Mn, Ni, Cu, Zn, Sr, Cd and Cs in the scalp hair of inhabitants from Balkans exposed to DU directly and indirectly, i.e. Han Pijesak, Bratoselce and Gornja Stub la areas. Except U and Cs, all other metals were compared with the worldwide reported values of occupationally unexposed persons. Uranium concentrations show a wide variation ranging from 0.9 +/- 0.05 to 449 +/- 12 mu g kg(-1). Although hair samples were collected from Balkan conflict zones, uranium isotopic measurement (U-235/U-238) shows a natural origin rather than DU.
T2  - Radiation Protection Dosimetry
T1  - Distribution of Uranium and Some Selected Trace Metals in Human Scalp Hair from Balkans
VL  - 152
IS  - 1-3
SP  - 220
EP  - 223
DO  - 10.1093/rpd/ncs225
ER  - 
@article{
author = "Žunić, Zora S. and Tokonami, S. and Mishra, S. and Arae, Hideki and Kritsananuwat, Rawiwan and Sahoo, Sarata Kumar",
year = "2012",
abstract = "The possible consequences of the use of depleted uranium (DU) used in Balkan conflicts in 1995 and 1999 for the people and the environment of this reason need attention. The heavy metal content in human hair may serve as a good indicator of dietary, environmental and occupational exposures to the metal compounds. The present work summarises the distribution of uranium and some selected trace metals such as Mn, Ni, Cu, Zn, Sr, Cd and Cs in the scalp hair of inhabitants from Balkans exposed to DU directly and indirectly, i.e. Han Pijesak, Bratoselce and Gornja Stub la areas. Except U and Cs, all other metals were compared with the worldwide reported values of occupationally unexposed persons. Uranium concentrations show a wide variation ranging from 0.9 +/- 0.05 to 449 +/- 12 mu g kg(-1). Although hair samples were collected from Balkan conflict zones, uranium isotopic measurement (U-235/U-238) shows a natural origin rather than DU.",
journal = "Radiation Protection Dosimetry",
title = "Distribution of Uranium and Some Selected Trace Metals in Human Scalp Hair from Balkans",
volume = "152",
number = "1-3",
pages = "220-223",
doi = "10.1093/rpd/ncs225"
}
Žunić, Z. S., Tokonami, S., Mishra, S., Arae, H., Kritsananuwat, R.,& Sahoo, S. K.. (2012). Distribution of Uranium and Some Selected Trace Metals in Human Scalp Hair from Balkans. in Radiation Protection Dosimetry, 152(1-3), 220-223.
https://doi.org/10.1093/rpd/ncs225
Žunić ZS, Tokonami S, Mishra S, Arae H, Kritsananuwat R, Sahoo SK. Distribution of Uranium and Some Selected Trace Metals in Human Scalp Hair from Balkans. in Radiation Protection Dosimetry. 2012;152(1-3):220-223.
doi:10.1093/rpd/ncs225 .
Žunić, Zora S., Tokonami, S., Mishra, S., Arae, Hideki, Kritsananuwat, Rawiwan, Sahoo, Sarata Kumar, "Distribution of Uranium and Some Selected Trace Metals in Human Scalp Hair from Balkans" in Radiation Protection Dosimetry, 152, no. 1-3 (2012):220-223,
https://doi.org/10.1093/rpd/ncs225 . .
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Collaborative investigations on thoron and radon in some rural communities of Balkans

Žunić, Zora S.; Čeliković, Igor T.; Tokonami, S.; Ishikawa, Tetsuo; Ujić, Predrag; Onischenko, Alexandra; Zhukovsky, Michael; Milic, G.; Jakupi, Bajram; Cuknic, O.; Veselinović, Nenad; Fujimoto, K.; Sahoo, Sarata Kumar; Yarmoshenko, Ilia V.

(2010)

TY  - JOUR
AU  - Žunić, Zora S.
AU  - Čeliković, Igor T.
AU  - Tokonami, S.
AU  - Ishikawa, Tetsuo
AU  - Ujić, Predrag
AU  - Onischenko, Alexandra
AU  - Zhukovsky, Michael
AU  - Milic, G.
AU  - Jakupi, Bajram
AU  - Cuknic, O.
AU  - Veselinović, Nenad
AU  - Fujimoto, K.
AU  - Sahoo, Sarata Kumar
AU  - Yarmoshenko, Ilia V.
PY  - 2010
UR  - http://vinar.vin.bg.ac.rs/handle/123456789/6890
AB  - This paper deals with the results of the first-field use in the Balkans, i.e. Serbia and Republic of Srpska (Bosnia and Hercegovina), of a passive polycarbonate Mark II type and poliallyldiglycol carbonate (Cr-39) alpha track detectors sensitive to thoron as well as to radon. Both types of solid state nuclear track detectors were designed and supplied by National Institute of Radiological Sciences (NIRS), Chiba, Japan. The commercial names for these detectors which all have been field tested in Balkan rural communities are known as: UFO and RADUET passive discriminative radon/thoron detectors. No database of thoron and thoron progeny concentrations in dwellings in Serbia or Balkans region exist, and as a result, the level of exposure of the Serbian population to thoron and its progeny is unknown so far.
T2  - Radiation Protection Dosimetry
T1  - Collaborative investigations on thoron and radon in some rural communities of Balkans
VL  - 141
IS  - 4
SP  - 346
EP  - 350
DO  - 10.1093/rpd/ncq258
ER  - 
@article{
author = "Žunić, Zora S. and Čeliković, Igor T. and Tokonami, S. and Ishikawa, Tetsuo and Ujić, Predrag and Onischenko, Alexandra and Zhukovsky, Michael and Milic, G. and Jakupi, Bajram and Cuknic, O. and Veselinović, Nenad and Fujimoto, K. and Sahoo, Sarata Kumar and Yarmoshenko, Ilia V.",
year = "2010",
abstract = "This paper deals with the results of the first-field use in the Balkans, i.e. Serbia and Republic of Srpska (Bosnia and Hercegovina), of a passive polycarbonate Mark II type and poliallyldiglycol carbonate (Cr-39) alpha track detectors sensitive to thoron as well as to radon. Both types of solid state nuclear track detectors were designed and supplied by National Institute of Radiological Sciences (NIRS), Chiba, Japan. The commercial names for these detectors which all have been field tested in Balkan rural communities are known as: UFO and RADUET passive discriminative radon/thoron detectors. No database of thoron and thoron progeny concentrations in dwellings in Serbia or Balkans region exist, and as a result, the level of exposure of the Serbian population to thoron and its progeny is unknown so far.",
journal = "Radiation Protection Dosimetry",
title = "Collaborative investigations on thoron and radon in some rural communities of Balkans",
volume = "141",
number = "4",
pages = "346-350",
doi = "10.1093/rpd/ncq258"
}
Žunić, Z. S., Čeliković, I. T., Tokonami, S., Ishikawa, T., Ujić, P., Onischenko, A., Zhukovsky, M., Milic, G., Jakupi, B., Cuknic, O., Veselinović, N., Fujimoto, K., Sahoo, S. K.,& Yarmoshenko, I. V.. (2010). Collaborative investigations on thoron and radon in some rural communities of Balkans. in Radiation Protection Dosimetry, 141(4), 346-350.
https://doi.org/10.1093/rpd/ncq258
Žunić ZS, Čeliković IT, Tokonami S, Ishikawa T, Ujić P, Onischenko A, Zhukovsky M, Milic G, Jakupi B, Cuknic O, Veselinović N, Fujimoto K, Sahoo SK, Yarmoshenko IV. Collaborative investigations on thoron and radon in some rural communities of Balkans. in Radiation Protection Dosimetry. 2010;141(4):346-350.
doi:10.1093/rpd/ncq258 .
Žunić, Zora S., Čeliković, Igor T., Tokonami, S., Ishikawa, Tetsuo, Ujić, Predrag, Onischenko, Alexandra, Zhukovsky, Michael, Milic, G., Jakupi, Bajram, Cuknic, O., Veselinović, Nenad, Fujimoto, K., Sahoo, Sarata Kumar, Yarmoshenko, Ilia V., "Collaborative investigations on thoron and radon in some rural communities of Balkans" in Radiation Protection Dosimetry, 141, no. 4 (2010):346-350,
https://doi.org/10.1093/rpd/ncq258 . .
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