Demajo, A.

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  • Demajo, A. (4)
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Author's Bibliography

Comparison of retrospective and contemporary indoor radon measurements in a high-radon area of Serbia

Žunić, Zora S.; Yarmoshenko, Ilia V.; Kelleher, K.; Paridaens, J.; Mc Laughlin, J. P.; Čeliković, Igor T.; Ujić, Predrag; Onischenko, A. D.; Jovanović, Svetlana P.; Demajo, A.; Birovljev, A.; Bochicchio, F.

(2007)

TY  - JOUR
AU  - Žunić, Zora S.
AU  - Yarmoshenko, Ilia V.
AU  - Kelleher, K.
AU  - Paridaens, J.
AU  - Mc Laughlin, J. P.
AU  - Čeliković, Igor T.
AU  - Ujić, Predrag
AU  - Onischenko, A. D.
AU  - Jovanović, Svetlana P.
AU  - Demajo, A.
AU  - Birovljev, A.
AU  - Bochicchio, F.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3309
AB  - In Niska Banja, Serbia, which is a high-radon area, a comparison was made between two retrospective radon measuring methods and contemporary radon measurements. The two retrospective methods derive the radon concentrations that occurred in dwellings over longer periods in the past, based on the amount of trapped 2 Po-10 on the surface of glass objects (surface traps, ST) or in the bulk of porous materials (volume traps, VT). Both surface implanted 2 1 Po-210 in glass objects and contemporary radon in air were measured in 46 rooms, distributed in 32 houses of this radon spa-town, using a dual alpha track detector configuration (CR-39 and LR115) and CR-39 track etched detectors, respectively. In addition to the use of surface trap measurements, in 18 rooms (distributed in 15 houses) VT samples of suitable material were also collected, allowing to compare ST and VT retrospective radon concentration estimates. For each room, contemporary annual radon concentrations (CONT) were measured or estimated using seasonal correction factors. The distribution of the radon concentration in all data sets was found to be close to lognormal (Chi-square test GT 0.05). Geometric means (GM) are similar, 3 ranging from 1040 to 1380 Bq m(-3) whereas geometric standard deviations (GSD) for both the retrospective methods are greater than for the CONT method, showing reasonable agreement between VT, ST and CONT measurements. A regression analysis, with respect to the lognormal distribution of each data set, shows that for VT-ST the correlation coefficient r is 0.85, for VT-CONT r is 0. 82 and for ST-CONT r is 0.73. Comparison of retrospective and contemporary radon concentrations with regard to supposed long-term indoor radon changes further supports the principal agreement between the retrospective and conventional methods. (C) 2007 Elsevier B.V. All rights reserved.
T2  - Science of the Total Environment
T1  - Comparison of retrospective and contemporary indoor radon measurements in a high-radon area of Serbia
VL  - 387
IS  - 1-3
SP  - 269
EP  - 275
DO  - 10.1016/j.scitotenv.2007.06.044
ER  - 
@article{
author = "Žunić, Zora S. and Yarmoshenko, Ilia V. and Kelleher, K. and Paridaens, J. and Mc Laughlin, J. P. and Čeliković, Igor T. and Ujić, Predrag and Onischenko, A. D. and Jovanović, Svetlana P. and Demajo, A. and Birovljev, A. and Bochicchio, F.",
year = "2007",
abstract = "In Niska Banja, Serbia, which is a high-radon area, a comparison was made between two retrospective radon measuring methods and contemporary radon measurements. The two retrospective methods derive the radon concentrations that occurred in dwellings over longer periods in the past, based on the amount of trapped 2 Po-10 on the surface of glass objects (surface traps, ST) or in the bulk of porous materials (volume traps, VT). Both surface implanted 2 1 Po-210 in glass objects and contemporary radon in air were measured in 46 rooms, distributed in 32 houses of this radon spa-town, using a dual alpha track detector configuration (CR-39 and LR115) and CR-39 track etched detectors, respectively. In addition to the use of surface trap measurements, in 18 rooms (distributed in 15 houses) VT samples of suitable material were also collected, allowing to compare ST and VT retrospective radon concentration estimates. For each room, contemporary annual radon concentrations (CONT) were measured or estimated using seasonal correction factors. The distribution of the radon concentration in all data sets was found to be close to lognormal (Chi-square test GT 0.05). Geometric means (GM) are similar, 3 ranging from 1040 to 1380 Bq m(-3) whereas geometric standard deviations (GSD) for both the retrospective methods are greater than for the CONT method, showing reasonable agreement between VT, ST and CONT measurements. A regression analysis, with respect to the lognormal distribution of each data set, shows that for VT-ST the correlation coefficient r is 0.85, for VT-CONT r is 0. 82 and for ST-CONT r is 0.73. Comparison of retrospective and contemporary radon concentrations with regard to supposed long-term indoor radon changes further supports the principal agreement between the retrospective and conventional methods. (C) 2007 Elsevier B.V. All rights reserved.",
journal = "Science of the Total Environment",
title = "Comparison of retrospective and contemporary indoor radon measurements in a high-radon area of Serbia",
volume = "387",
number = "1-3",
pages = "269-275",
doi = "10.1016/j.scitotenv.2007.06.044"
}
Žunić, Z. S., Yarmoshenko, I. V., Kelleher, K., Paridaens, J., Mc Laughlin, J. P., Čeliković, I. T., Ujić, P., Onischenko, A. D., Jovanović, S. P., Demajo, A., Birovljev, A.,& Bochicchio, F.. (2007). Comparison of retrospective and contemporary indoor radon measurements in a high-radon area of Serbia. in Science of the Total Environment, 387(1-3), 269-275.
https://doi.org/10.1016/j.scitotenv.2007.06.044
Žunić ZS, Yarmoshenko IV, Kelleher K, Paridaens J, Mc Laughlin JP, Čeliković IT, Ujić P, Onischenko AD, Jovanović SP, Demajo A, Birovljev A, Bochicchio F. Comparison of retrospective and contemporary indoor radon measurements in a high-radon area of Serbia. in Science of the Total Environment. 2007;387(1-3):269-275.
doi:10.1016/j.scitotenv.2007.06.044 .
Žunić, Zora S., Yarmoshenko, Ilia V., Kelleher, K., Paridaens, J., Mc Laughlin, J. P., Čeliković, Igor T., Ujić, Predrag, Onischenko, A. D., Jovanović, Svetlana P., Demajo, A., Birovljev, A., Bochicchio, F., "Comparison of retrospective and contemporary indoor radon measurements in a high-radon area of Serbia" in Science of the Total Environment, 387, no. 1-3 (2007):269-275,
https://doi.org/10.1016/j.scitotenv.2007.06.044 . .
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Radon survey in the high natural radiation region of Niska Banja, Serbia

Žunić, Zora S.; Yarmoshenko, Ilia V.; Birovljev, A.; Bochicchio, F.; Quarto, M.; Obryk, B.; Paszkowski, M.; Čeliković, Igor T.; Demajo, A.; Ujić, Predrag; Budzanowski, M.; Olko, P.; McLaughlin, J. P.; Waligorski, M. P. R.

(2007)

TY  - JOUR
AU  - Žunić, Zora S.
AU  - Yarmoshenko, Ilia V.
AU  - Birovljev, A.
AU  - Bochicchio, F.
AU  - Quarto, M.
AU  - Obryk, B.
AU  - Paszkowski, M.
AU  - Čeliković, Igor T.
AU  - Demajo, A.
AU  - Ujić, Predrag
AU  - Budzanowski, M.
AU  - Olko, P.
AU  - McLaughlin, J. P.
AU  - Waligorski, M. P. R.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3161
AB  - A radon survey has been carried out around the town of Niska Banja (Serbia) in a region partly located over travertine formations, showing an enhanced level of natural radioactivity. Outdoor and indoor radon concentrations were measured seasonally over the whole year, using CR-39 diffusion type radon detectors. Outdoor measurements were performed at 56 points distributed over both travertine and alluvium sediment formations. Indoor radon concentrations were measured in 102 living rooms and bedrooms of 65 family houses. In about 50% of all measurement sites, radon concentration was measured over each season separately, making it possible to estimate seasonal variations, which were then used to correct values measured over different periods, and to estimate annual values. The average annual indoor radon concentration was estimated at over 1500 Bq/m(3) and at about 650 Bq/m(3) in parts of Niska Banja located over travertine and alluvium sediment formations, respectively, with maximum values exceeding 6000 Bq/m(3). The aver age value of outdoor annual radon concentration was 57 Bq/m(3), with a maximum value of 168 Bq/m(3). The high values of indoor and outdoor radon concentrations found at Niska Banja make this region a high natural background radiation area. Statistical analysis of our data confirms that the level of indoor radon concentration depends primarily on the underlying soil and building characteristics. (c) 2006 Elsevier Ltd. All rights reserved.
T2  - Journal of Environmental Radioactivity
T1  - Radon survey in the high natural radiation region of Niska Banja, Serbia
VL  - 92
IS  - 3
SP  - 165
EP  - 174
DO  - 10.1016/j.jenvrad.2006.11.002
ER  - 
@article{
author = "Žunić, Zora S. and Yarmoshenko, Ilia V. and Birovljev, A. and Bochicchio, F. and Quarto, M. and Obryk, B. and Paszkowski, M. and Čeliković, Igor T. and Demajo, A. and Ujić, Predrag and Budzanowski, M. and Olko, P. and McLaughlin, J. P. and Waligorski, M. P. R.",
year = "2007",
abstract = "A radon survey has been carried out around the town of Niska Banja (Serbia) in a region partly located over travertine formations, showing an enhanced level of natural radioactivity. Outdoor and indoor radon concentrations were measured seasonally over the whole year, using CR-39 diffusion type radon detectors. Outdoor measurements were performed at 56 points distributed over both travertine and alluvium sediment formations. Indoor radon concentrations were measured in 102 living rooms and bedrooms of 65 family houses. In about 50% of all measurement sites, radon concentration was measured over each season separately, making it possible to estimate seasonal variations, which were then used to correct values measured over different periods, and to estimate annual values. The average annual indoor radon concentration was estimated at over 1500 Bq/m(3) and at about 650 Bq/m(3) in parts of Niska Banja located over travertine and alluvium sediment formations, respectively, with maximum values exceeding 6000 Bq/m(3). The aver age value of outdoor annual radon concentration was 57 Bq/m(3), with a maximum value of 168 Bq/m(3). The high values of indoor and outdoor radon concentrations found at Niska Banja make this region a high natural background radiation area. Statistical analysis of our data confirms that the level of indoor radon concentration depends primarily on the underlying soil and building characteristics. (c) 2006 Elsevier Ltd. All rights reserved.",
journal = "Journal of Environmental Radioactivity",
title = "Radon survey in the high natural radiation region of Niska Banja, Serbia",
volume = "92",
number = "3",
pages = "165-174",
doi = "10.1016/j.jenvrad.2006.11.002"
}
Žunić, Z. S., Yarmoshenko, I. V., Birovljev, A., Bochicchio, F., Quarto, M., Obryk, B., Paszkowski, M., Čeliković, I. T., Demajo, A., Ujić, P., Budzanowski, M., Olko, P., McLaughlin, J. P.,& Waligorski, M. P. R.. (2007). Radon survey in the high natural radiation region of Niska Banja, Serbia. in Journal of Environmental Radioactivity, 92(3), 165-174.
https://doi.org/10.1016/j.jenvrad.2006.11.002
Žunić ZS, Yarmoshenko IV, Birovljev A, Bochicchio F, Quarto M, Obryk B, Paszkowski M, Čeliković IT, Demajo A, Ujić P, Budzanowski M, Olko P, McLaughlin JP, Waligorski MPR. Radon survey in the high natural radiation region of Niska Banja, Serbia. in Journal of Environmental Radioactivity. 2007;92(3):165-174.
doi:10.1016/j.jenvrad.2006.11.002 .
Žunić, Zora S., Yarmoshenko, Ilia V., Birovljev, A., Bochicchio, F., Quarto, M., Obryk, B., Paszkowski, M., Čeliković, Igor T., Demajo, A., Ujić, Predrag, Budzanowski, M., Olko, P., McLaughlin, J. P., Waligorski, M. P. R., "Radon survey in the high natural radiation region of Niska Banja, Serbia" in Journal of Environmental Radioactivity, 92, no. 3 (2007):165-174,
https://doi.org/10.1016/j.jenvrad.2006.11.002 . .
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A campaign of discrete radon concentration measurements in soil of Niska Banja town, Serbia

Žunić, Zora S.; Kozak, K.; Ciotoli, G.; Ramola, R. C.; Kochowska, E.; Ujić, Predrag; Čeliković, Igor T.; Mazur, J.; Janik, M.; Demajo, A.; Birovljev, A.; Bochicchio, F.; Yarmoshenko, Ilia V.; Kryeziu, D.; Olko, P.

(2007)

TY  - JOUR
AU  - Žunić, Zora S.
AU  - Kozak, K.
AU  - Ciotoli, G.
AU  - Ramola, R. C.
AU  - Kochowska, E.
AU  - Ujić, Predrag
AU  - Čeliković, Igor T.
AU  - Mazur, J.
AU  - Janik, M.
AU  - Demajo, A.
AU  - Birovljev, A.
AU  - Bochicchio, F.
AU  - Yarmoshenko, Ilia V.
AU  - Kryeziu, D.
AU  - Olko, P.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3350
AB  - The first radon soil gas survey in Serbia, using passive detectors (SSNTD, CR-39), was carried out in June 2005 at field sites in Niska Banja town. The aim of the survey was to identify risk zones characterised by high levels of this radioactive gas. Radon measurements were made at the depth of 50cm, in the ground according to a systematic grid pattern. Furthermore, at all 48 measurement points, the surface gamma dose rates in the air was also measured at the same locations and soil samples were collected for gamma spectrometric analysis for the radionuclides Ra-226, Th-228 and K-40. Radon concentrations were found to range from 1270 to 155000 Bq m(-3) with an average of 33765 Bq m(-3) and a median value of 12626 Bq m(-3). The geometrical mean value and geometrical standard deviation were calculated as 16160 Bq m(-3) and 3.5 Bq m(-3), respectively. Gamma dose rate varies from 92 to 316 nGy h(-1), with an average of 132 nGy h(-1). The radium content in collected soil samples ranges from 24 to 1810 Bq kg(-1) with an average of 187 Bq kg(-1). High correlations (r(2) GT 0.8) between soil gas radon concentration, gamma dose rate and Ra-226 content in soil were found for each pair. The distribution of radon concentrations in soil gas shows bimodal shape. (C) 2007 Elsevier Ltd. All rights reserved.
T2  - Radiation Measurements
T1  - A campaign of discrete radon concentration measurements in soil of Niska Banja town, Serbia
VL  - 42
IS  - 10
SP  - 1696
EP  - 1702
DO  - 10.1016/j.radmeas.2007.06.010
ER  - 
@article{
author = "Žunić, Zora S. and Kozak, K. and Ciotoli, G. and Ramola, R. C. and Kochowska, E. and Ujić, Predrag and Čeliković, Igor T. and Mazur, J. and Janik, M. and Demajo, A. and Birovljev, A. and Bochicchio, F. and Yarmoshenko, Ilia V. and Kryeziu, D. and Olko, P.",
year = "2007",
abstract = "The first radon soil gas survey in Serbia, using passive detectors (SSNTD, CR-39), was carried out in June 2005 at field sites in Niska Banja town. The aim of the survey was to identify risk zones characterised by high levels of this radioactive gas. Radon measurements were made at the depth of 50cm, in the ground according to a systematic grid pattern. Furthermore, at all 48 measurement points, the surface gamma dose rates in the air was also measured at the same locations and soil samples were collected for gamma spectrometric analysis for the radionuclides Ra-226, Th-228 and K-40. Radon concentrations were found to range from 1270 to 155000 Bq m(-3) with an average of 33765 Bq m(-3) and a median value of 12626 Bq m(-3). The geometrical mean value and geometrical standard deviation were calculated as 16160 Bq m(-3) and 3.5 Bq m(-3), respectively. Gamma dose rate varies from 92 to 316 nGy h(-1), with an average of 132 nGy h(-1). The radium content in collected soil samples ranges from 24 to 1810 Bq kg(-1) with an average of 187 Bq kg(-1). High correlations (r(2) GT 0.8) between soil gas radon concentration, gamma dose rate and Ra-226 content in soil were found for each pair. The distribution of radon concentrations in soil gas shows bimodal shape. (C) 2007 Elsevier Ltd. All rights reserved.",
journal = "Radiation Measurements",
title = "A campaign of discrete radon concentration measurements in soil of Niska Banja town, Serbia",
volume = "42",
number = "10",
pages = "1696-1702",
doi = "10.1016/j.radmeas.2007.06.010"
}
Žunić, Z. S., Kozak, K., Ciotoli, G., Ramola, R. C., Kochowska, E., Ujić, P., Čeliković, I. T., Mazur, J., Janik, M., Demajo, A., Birovljev, A., Bochicchio, F., Yarmoshenko, I. V., Kryeziu, D.,& Olko, P.. (2007). A campaign of discrete radon concentration measurements in soil of Niska Banja town, Serbia. in Radiation Measurements, 42(10), 1696-1702.
https://doi.org/10.1016/j.radmeas.2007.06.010
Žunić ZS, Kozak K, Ciotoli G, Ramola RC, Kochowska E, Ujić P, Čeliković IT, Mazur J, Janik M, Demajo A, Birovljev A, Bochicchio F, Yarmoshenko IV, Kryeziu D, Olko P. A campaign of discrete radon concentration measurements in soil of Niska Banja town, Serbia. in Radiation Measurements. 2007;42(10):1696-1702.
doi:10.1016/j.radmeas.2007.06.010 .
Žunić, Zora S., Kozak, K., Ciotoli, G., Ramola, R. C., Kochowska, E., Ujić, Predrag, Čeliković, Igor T., Mazur, J., Janik, M., Demajo, A., Birovljev, A., Bochicchio, F., Yarmoshenko, Ilia V., Kryeziu, D., Olko, P., "A campaign of discrete radon concentration measurements in soil of Niska Banja town, Serbia" in Radiation Measurements, 42, no. 10 (2007):1696-1702,
https://doi.org/10.1016/j.radmeas.2007.06.010 . .
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High natural radiation exposure in radon spa areas: a detailed field investigation in Niska Banja (Balkan region)

Žunić, Zora S.; Kobal, I.; Vaupotič, Janja; Kozak, K.; Mazur, J.; Birovljev, A.; Janik, M.; Čeliković, Igor T.; Ujić, Predrag; Demajo, A.; Krstic, G.; Jakupi, Bajram; Quarto, M.; Bochicchio, F.

(2006)

TY  - JOUR
AU  - Žunić, Zora S.
AU  - Kobal, I.
AU  - Vaupotič, Janja
AU  - Kozak, K.
AU  - Mazur, J.
AU  - Birovljev, A.
AU  - Janik, M.
AU  - Čeliković, Igor T.
AU  - Ujić, Predrag
AU  - Demajo, A.
AU  - Krstic, G.
AU  - Jakupi, Bajram
AU  - Quarto, M.
AU  - Bochicchio, F.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3066
AB  - The measurement campaigns have been done in the rural community of Niska. Banja, a spa town located in southern Serbia, to evaluate population exposure to natural radioactivity. After a screening survey in 200 houses, annual radon and thoron concentrations were measured in 34 houses, and in 2004 a detailed investigation was carried out at six houses with elevated indoor radon concentrations. The paper presents the results of these detailed measurements. The complementary techniques were applied to determine radon and thoron concentrations in indoor air, in soil gas, radon exhalation from soil, soil permeability, and indoor and outdoor gamma doses. Soil and water samples were collected and analysed in the laboratory. Indoor radon and thoron. concentrations were found to be more than 1 kBq m(-3) and 200 Bq m(-3) respectively. Extremely high concentrations of soil-gas radon ( GT 2000 kBq m(-3)) and radon exhalation rates (1.5 mBq m(-2) s(-1)) were observed. These results will be utilised to set up the methodology for a more systematic investigation. (c) 2006 Elsevier Ltd. All rights reserved.
T2  - Journal of Environmental Radioactivity
T1  - High natural radiation exposure in radon spa areas: a detailed field investigation in Niska Banja (Balkan region)
VL  - 89
IS  - 3
SP  - 249
EP  - 260
DO  - 10.1016/j.jenvrad.2006.05.010
ER  - 
@article{
author = "Žunić, Zora S. and Kobal, I. and Vaupotič, Janja and Kozak, K. and Mazur, J. and Birovljev, A. and Janik, M. and Čeliković, Igor T. and Ujić, Predrag and Demajo, A. and Krstic, G. and Jakupi, Bajram and Quarto, M. and Bochicchio, F.",
year = "2006",
abstract = "The measurement campaigns have been done in the rural community of Niska. Banja, a spa town located in southern Serbia, to evaluate population exposure to natural radioactivity. After a screening survey in 200 houses, annual radon and thoron concentrations were measured in 34 houses, and in 2004 a detailed investigation was carried out at six houses with elevated indoor radon concentrations. The paper presents the results of these detailed measurements. The complementary techniques were applied to determine radon and thoron concentrations in indoor air, in soil gas, radon exhalation from soil, soil permeability, and indoor and outdoor gamma doses. Soil and water samples were collected and analysed in the laboratory. Indoor radon and thoron. concentrations were found to be more than 1 kBq m(-3) and 200 Bq m(-3) respectively. Extremely high concentrations of soil-gas radon ( GT 2000 kBq m(-3)) and radon exhalation rates (1.5 mBq m(-2) s(-1)) were observed. These results will be utilised to set up the methodology for a more systematic investigation. (c) 2006 Elsevier Ltd. All rights reserved.",
journal = "Journal of Environmental Radioactivity",
title = "High natural radiation exposure in radon spa areas: a detailed field investigation in Niska Banja (Balkan region)",
volume = "89",
number = "3",
pages = "249-260",
doi = "10.1016/j.jenvrad.2006.05.010"
}
Žunić, Z. S., Kobal, I., Vaupotič, J., Kozak, K., Mazur, J., Birovljev, A., Janik, M., Čeliković, I. T., Ujić, P., Demajo, A., Krstic, G., Jakupi, B., Quarto, M.,& Bochicchio, F.. (2006). High natural radiation exposure in radon spa areas: a detailed field investigation in Niska Banja (Balkan region). in Journal of Environmental Radioactivity, 89(3), 249-260.
https://doi.org/10.1016/j.jenvrad.2006.05.010
Žunić ZS, Kobal I, Vaupotič J, Kozak K, Mazur J, Birovljev A, Janik M, Čeliković IT, Ujić P, Demajo A, Krstic G, Jakupi B, Quarto M, Bochicchio F. High natural radiation exposure in radon spa areas: a detailed field investigation in Niska Banja (Balkan region). in Journal of Environmental Radioactivity. 2006;89(3):249-260.
doi:10.1016/j.jenvrad.2006.05.010 .
Žunić, Zora S., Kobal, I., Vaupotič, Janja, Kozak, K., Mazur, J., Birovljev, A., Janik, M., Čeliković, Igor T., Ujić, Predrag, Demajo, A., Krstic, G., Jakupi, Bajram, Quarto, M., Bochicchio, F., "High natural radiation exposure in radon spa areas: a detailed field investigation in Niska Banja (Balkan region)" in Journal of Environmental Radioactivity, 89, no. 3 (2006):249-260,
https://doi.org/10.1016/j.jenvrad.2006.05.010 . .
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