Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska
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Ćurguz, ZoranStojanovska, Zdenka A.
Žunić, Zora S.
Kolarž, Predrag M.
Ischikawa, T.
Omori, Y.
Mishra, R.
Sapra, B. K.
Vaupotič, Janja
Ujić, Predrag
Bossew, Peter
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This article reports results of the first investigations on indoor radon, thoron and their decay products concentration in 25 primary schools of Banja Luka, capital city of Republic Srpska. The measurements have been carried out in the period from May 2011 to April 2012 using 3 types of commercially available nuclear track detectors, named: long-term radon monitor (GAMMA 1)- for radon concentration measurements (C-Rn); radon-thoron discriminative monitor (RADUET) for thoron concentration measurements (C-Tn); while equilibrium equivalent radon concentration (EERC) and equilibrium equivalent thoron concentrations (EETC) measured by Direct Radon Progeny Sensors/Direct Thoron Progeny Sensors (DRPS/DTPS) were exposed in the period November 2011 to April 2012. In each school the detectors were deployed at 10 cm distance from the wall. The obtained geometric mean concentrations were C-Rn = 99 Bq m(-3) and C-Tn = 51 Bq m(-3) for radon and thoron gases respectively. Those for equilibrium equiva...lent radon concentration (EERC) and equilibrium equivalent thoron concentrations (EETC) were 11.2 Bq m(-3) and 0.4 Bq m(-3), respectively. The correlation analyses showed weak relation only between C-Rn and C-Tn as well as between C-Tn and EETC. The influence of the school geographical locations and factors linked to buildings characteristic in relation to measured concentrations were tested. The geographical location and floor level significantly influence C-Rn while C-Tn depend only from building materials (ANOVA, p LT = 0.05). The obtained geometric mean values of the equilibrium factors were 0.123 for radon and 0.008 for thoron. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords:
Indoor air / Radon / Thoron / Radon progenies / Thoron progenies / Equilibrium factor / Primary schools / Nuclear track detectorsSource:
Journal of Environmental Radioactivity, 2015, 148, 163-169Funding / projects:
- Physics of collisions and photo processes in atomic, (bio)molecular and nanosized systems (RS-MESTD-Basic Research (BR or ON)-171020)
- Optoelectronics nanodimension systems - the rout towards applications (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45003)
- An integral study to identify the regional genetic and environmental risk factors for the common noncommunicable diseases in the human population of Serbia - INGEMA_S (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-41028)
- Ministry of Science and Technology of Republic of Srpska [19/06-020/961-132/11]
DOI: 10.1016/j.jenvrad.2015.06.026
ISSN: 0265-931X; 1879-1700
PubMed: 26171822
WoS: 000361162100019
Scopus: 2-s2.0-84938083441
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VinčaTY - JOUR AU - Ćurguz, Zoran AU - Stojanovska, Zdenka A. AU - Žunić, Zora S. AU - Kolarž, Predrag M. AU - Ischikawa, T. AU - Omori, Y. AU - Mishra, R. AU - Sapra, B. K. AU - Vaupotič, Janja AU - Ujić, Predrag AU - Bossew, Peter PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/736 AB - This article reports results of the first investigations on indoor radon, thoron and their decay products concentration in 25 primary schools of Banja Luka, capital city of Republic Srpska. The measurements have been carried out in the period from May 2011 to April 2012 using 3 types of commercially available nuclear track detectors, named: long-term radon monitor (GAMMA 1)- for radon concentration measurements (C-Rn); radon-thoron discriminative monitor (RADUET) for thoron concentration measurements (C-Tn); while equilibrium equivalent radon concentration (EERC) and equilibrium equivalent thoron concentrations (EETC) measured by Direct Radon Progeny Sensors/Direct Thoron Progeny Sensors (DRPS/DTPS) were exposed in the period November 2011 to April 2012. In each school the detectors were deployed at 10 cm distance from the wall. The obtained geometric mean concentrations were C-Rn = 99 Bq m(-3) and C-Tn = 51 Bq m(-3) for radon and thoron gases respectively. Those for equilibrium equivalent radon concentration (EERC) and equilibrium equivalent thoron concentrations (EETC) were 11.2 Bq m(-3) and 0.4 Bq m(-3), respectively. The correlation analyses showed weak relation only between C-Rn and C-Tn as well as between C-Tn and EETC. The influence of the school geographical locations and factors linked to buildings characteristic in relation to measured concentrations were tested. The geographical location and floor level significantly influence C-Rn while C-Tn depend only from building materials (ANOVA, p LT = 0.05). The obtained geometric mean values of the equilibrium factors were 0.123 for radon and 0.008 for thoron. (C) 2015 Elsevier Ltd. All rights reserved. T2 - Journal of Environmental Radioactivity T1 - Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska VL - 148 SP - 163 EP - 169 DO - 10.1016/j.jenvrad.2015.06.026 ER -
@article{ author = "Ćurguz, Zoran and Stojanovska, Zdenka A. and Žunić, Zora S. and Kolarž, Predrag M. and Ischikawa, T. and Omori, Y. and Mishra, R. and Sapra, B. K. and Vaupotič, Janja and Ujić, Predrag and Bossew, Peter", year = "2015", abstract = "This article reports results of the first investigations on indoor radon, thoron and their decay products concentration in 25 primary schools of Banja Luka, capital city of Republic Srpska. The measurements have been carried out in the period from May 2011 to April 2012 using 3 types of commercially available nuclear track detectors, named: long-term radon monitor (GAMMA 1)- for radon concentration measurements (C-Rn); radon-thoron discriminative monitor (RADUET) for thoron concentration measurements (C-Tn); while equilibrium equivalent radon concentration (EERC) and equilibrium equivalent thoron concentrations (EETC) measured by Direct Radon Progeny Sensors/Direct Thoron Progeny Sensors (DRPS/DTPS) were exposed in the period November 2011 to April 2012. In each school the detectors were deployed at 10 cm distance from the wall. The obtained geometric mean concentrations were C-Rn = 99 Bq m(-3) and C-Tn = 51 Bq m(-3) for radon and thoron gases respectively. Those for equilibrium equivalent radon concentration (EERC) and equilibrium equivalent thoron concentrations (EETC) were 11.2 Bq m(-3) and 0.4 Bq m(-3), respectively. The correlation analyses showed weak relation only between C-Rn and C-Tn as well as between C-Tn and EETC. The influence of the school geographical locations and factors linked to buildings characteristic in relation to measured concentrations were tested. The geographical location and floor level significantly influence C-Rn while C-Tn depend only from building materials (ANOVA, p LT = 0.05). The obtained geometric mean values of the equilibrium factors were 0.123 for radon and 0.008 for thoron. (C) 2015 Elsevier Ltd. All rights reserved.", journal = "Journal of Environmental Radioactivity", title = "Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska", volume = "148", pages = "163-169", doi = "10.1016/j.jenvrad.2015.06.026" }
Ćurguz, Z., Stojanovska, Z. A., Žunić, Z. S., Kolarž, P. M., Ischikawa, T., Omori, Y., Mishra, R., Sapra, B. K., Vaupotič, J., Ujić, P.,& Bossew, P.. (2015). Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska. in Journal of Environmental Radioactivity, 148, 163-169. https://doi.org/10.1016/j.jenvrad.2015.06.026
Ćurguz Z, Stojanovska ZA, Žunić ZS, Kolarž PM, Ischikawa T, Omori Y, Mishra R, Sapra BK, Vaupotič J, Ujić P, Bossew P. Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska. in Journal of Environmental Radioactivity. 2015;148:163-169. doi:10.1016/j.jenvrad.2015.06.026 .
Ćurguz, Zoran, Stojanovska, Zdenka A., Žunić, Zora S., Kolarž, Predrag M., Ischikawa, T., Omori, Y., Mishra, R., Sapra, B. K., Vaupotič, Janja, Ujić, Predrag, Bossew, Peter, "Long-term measurements of radon, thoron and their airborne progeny in 25 schools in Republic of Srpska" in Journal of Environmental Radioactivity, 148 (2015):163-169, https://doi.org/10.1016/j.jenvrad.2015.06.026 . .