TY  - JOUR
AU  - Kolarž, Predrag M.
AU  - Vaupotič, Janja
AU  - Kobal, Ivan
AU  - Ujić, Predrag
AU  - Stojanovska, Zdenka A.
AU  - Žunić, Zora S.
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7163
AB  - Spatial distribution of radioactive gasses thoron (Tn) and radon (Rn) in indoor air of 9 houses mostly during winter period of 2013 has been studied. According to properties of alpha decay of both elements, air ionization was also measured. Simultaneous continual measurements using three Rn/an and three air-ion active instruments deployed on to three different distances from the wall surface have shown various outcomes. It has turned out that Tn and air ions concentrations decrease with the distance increase, while Rn remained uniformly distributed. Exponential fittings function for Tn variation with distance was used for the diffusion length and constant as well as the exhalation rate determination. The obtained values were similar with experimental data reported in the literature. Concentrations of air ions were found to be in relation with Rn and obvious, but to a lesser extent, with Tn. (C) 2016 Elsevier Ltd. All rights reserved.
T2  - Journal of Environmental Radioactivity
T1  - Thoron, radon and air ions spatial distribution in indoor air
VL  - 173
SP  - 70
EP  - 74
DO  - 10.1016/j.jenvrad.2016.11.006
ER  - 

@article{
author = "Kolarž, Predrag M. and Vaupotič, Janja and Kobal, Ivan and Ujić, Predrag and Stojanovska, Zdenka A. and Žunić, Zora S.",
year = "2017",
abstract = "Spatial distribution of radioactive gasses thoron (Tn) and radon (Rn) in indoor air of 9 houses mostly during winter period of 2013 has been studied. According to properties of alpha decay of both elements, air ionization was also measured. Simultaneous continual measurements using three Rn/an and three air-ion active instruments deployed on to three different distances from the wall surface have shown various outcomes. It has turned out that Tn and air ions concentrations decrease with the distance increase, while Rn remained uniformly distributed. Exponential fittings function for Tn variation with distance was used for the diffusion length and constant as well as the exhalation rate determination. The obtained values were similar with experimental data reported in the literature. Concentrations of air ions were found to be in relation with Rn and obvious, but to a lesser extent, with Tn. (C) 2016 Elsevier Ltd. All rights reserved.",
journal = "Journal of Environmental Radioactivity",
title = "Thoron, radon and air ions spatial distribution in indoor air",
volume = "173",
pages = "70-74",
doi = "10.1016/j.jenvrad.2016.11.006"
}

Kolarž, P. M., Vaupotič, J., Kobal, I., Ujić, P., Stojanovska, Z. A.,& Žunić, Z. S.. (2017). Thoron, radon and air ions spatial distribution in indoor air. in Journal of Environmental Radioactivity, 173, 70-74.
https://doi.org/10.1016/j.jenvrad.2016.11.006

Kolarž PM, Vaupotič J, Kobal I, Ujić P, Stojanovska ZA, Žunić ZS. Thoron, radon and air ions spatial distribution in indoor air. in Journal of Environmental Radioactivity. 2017;173:70-74.
doi:10.1016/j.jenvrad.2016.11.006 .

Kolarž, Predrag M., Vaupotič, Janja, Kobal, Ivan, Ujić, Predrag, Stojanovska, Zdenka A., Žunić, Zora S., "Thoron, radon and air ions spatial distribution in indoor air" in Journal of Environmental Radioactivity, 173 (2017):70-74,
https://doi.org/10.1016/j.jenvrad.2016.11.006 . .

TY  - JOUR
AU  - Kolarž, Predrag M.
AU  - Vaupotič, Janja
AU  - Kobal, Ivan
AU  - Ujić, Predrag
AU  - Žunić, Zora S.
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/968
AB  - Concentration and size distribution of airborne particles (size range 10-1100 nm), using a SMPS+C Scanning Mobility Particle Sizer, and concentrations of positive and negative cluster ions (size range 0.36-1.6 nm), using several CDI-06 Gerdien-type integral air ion detectors, have been monitored in three rooms in rural dwellings of Serbia and Slovenia, during periods when nobody was present in the room and while smoking and heating were taking place. The highest particle generation rate was 2.4 x 10(11) min(-1) while cigarette smoking was taking place and was 1.5 x 10(11) min(-1) during heating with a cast iron stove with wood burning at 150 degrees C, and 1.1 x 10(10) min(-1), during heating with an Alpine -type oven at 40-50 degrees C. The related particle loss rate constants were 0.0603 min(-1), 0.0442 min(-1), and 0.0067 min(-1). The estimated mean values of the effective ion attachment rate beta(eff) vary between (2.2-5.4)10(-6) cm(3) s(-1). A correlation between ions concentration and particles concentration and their sizes has been sought, and findings are discussed and shown. (C) 2016 Elsevier Ltd. All rights reserved.
PB  - Elsevier
T2  - Journal of Aerosol Science
T1  - Air ion and aerosol study in rural dwellings
VL  - 95
SP  - 118
EP  - 134
DO  - 10.1016/j.jaerosci.2016.02.002
ER  - 

@article{
author = "Kolarž, Predrag M. and Vaupotič, Janja and Kobal, Ivan and Ujić, Predrag and Žunić, Zora S.",
year = "2016",
abstract = "Concentration and size distribution of airborne particles (size range 10-1100 nm), using a SMPS+C Scanning Mobility Particle Sizer, and concentrations of positive and negative cluster ions (size range 0.36-1.6 nm), using several CDI-06 Gerdien-type integral air ion detectors, have been monitored in three rooms in rural dwellings of Serbia and Slovenia, during periods when nobody was present in the room and while smoking and heating were taking place. The highest particle generation rate was 2.4 x 10(11) min(-1) while cigarette smoking was taking place and was 1.5 x 10(11) min(-1) during heating with a cast iron stove with wood burning at 150 degrees C, and 1.1 x 10(10) min(-1), during heating with an Alpine -type oven at 40-50 degrees C. The related particle loss rate constants were 0.0603 min(-1), 0.0442 min(-1), and 0.0067 min(-1). The estimated mean values of the effective ion attachment rate beta(eff) vary between (2.2-5.4)10(-6) cm(3) s(-1). A correlation between ions concentration and particles concentration and their sizes has been sought, and findings are discussed and shown. (C) 2016 Elsevier Ltd. All rights reserved.",
publisher = "Elsevier",
journal = "Journal of Aerosol Science",
title = "Air ion and aerosol study in rural dwellings",
volume = "95",
pages = "118-134",
doi = "10.1016/j.jaerosci.2016.02.002"
}

Kolarž, P. M., Vaupotič, J., Kobal, I., Ujić, P.,& Žunić, Z. S.. (2016). Air ion and aerosol study in rural dwellings. in Journal of Aerosol Science
Elsevier., 95, 118-134.
https://doi.org/10.1016/j.jaerosci.2016.02.002

Kolarž PM, Vaupotič J, Kobal I, Ujić P, Žunić ZS. Air ion and aerosol study in rural dwellings. in Journal of Aerosol Science. 2016;95:118-134.
doi:10.1016/j.jaerosci.2016.02.002 .

Kolarž, Predrag M., Vaupotič, Janja, Kobal, Ivan, Ujić, Predrag, Žunić, Zora S., "Air ion and aerosol study in rural dwellings" in Journal of Aerosol Science, 95 (2016):118-134,
https://doi.org/10.1016/j.jaerosci.2016.02.002 . .

TY  - JOUR
AU  - Vaupotič, Janja
AU  - Čeliković, Igor T.
AU  - Smrekar, Natasa
AU  - Žunić, Zora S.
AU  - Kobal, Ivan
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3390
AB  - Radon (Rn-222) and thoron (Rn-220) were surveyed in indoor air of 15 public buildings and 10 homes in Slovenia in November 2004 by exposing Rn-Tn discriminative etched track detectors. The following ranges of the activity concentration were obtained for public buildings: 98-2680 Bq m(-3) for C-Rn, 19-1330 Bq m(-3) for C-Tn and 0.11-0.72 for the C-Tn/C-Rn ratio. In homes, the C-Rn range was 12-374 Bq m(-3) and all C-Tn values, except one of 29 Bq m(-3), were below the detection limit of 10 Bq m-3. Monthly effective doses in public buildings due to Rn (E-Rn) and Tn (E-Tn) were in the ranges 0.05-1.45 mSv and 0.01-0.47 mSv, respectively, and in homes, 0.018-0.548 and 0.009-0.095 mSv, respectively. The E-Tn/E-Rn ratio in public buildings was in the range 0.07-0.47.
T2  - Acta Chimica Slovenica
T1  - Concentrations of Rn-222 and Rn-220 in indoor air
VL  - 55
IS  - 1
SP  - 160
EP  - 165
UR  - https://hdl.handle.net/21.15107/rcub_vinar_3390
ER  - 

@article{
author = "Vaupotič, Janja and Čeliković, Igor T. and Smrekar, Natasa and Žunić, Zora S. and Kobal, Ivan",
year = "2008",
abstract = "Radon (Rn-222) and thoron (Rn-220) were surveyed in indoor air of 15 public buildings and 10 homes in Slovenia in November 2004 by exposing Rn-Tn discriminative etched track detectors. The following ranges of the activity concentration were obtained for public buildings: 98-2680 Bq m(-3) for C-Rn, 19-1330 Bq m(-3) for C-Tn and 0.11-0.72 for the C-Tn/C-Rn ratio. In homes, the C-Rn range was 12-374 Bq m(-3) and all C-Tn values, except one of 29 Bq m(-3), were below the detection limit of 10 Bq m-3. Monthly effective doses in public buildings due to Rn (E-Rn) and Tn (E-Tn) were in the ranges 0.05-1.45 mSv and 0.01-0.47 mSv, respectively, and in homes, 0.018-0.548 and 0.009-0.095 mSv, respectively. The E-Tn/E-Rn ratio in public buildings was in the range 0.07-0.47.",
journal = "Acta Chimica Slovenica",
title = "Concentrations of Rn-222 and Rn-220 in indoor air",
volume = "55",
number = "1",
pages = "160-165",
url = "https://hdl.handle.net/21.15107/rcub_vinar_3390"
}

Vaupotič, J., Čeliković, I. T., Smrekar, N., Žunić, Z. S.,& Kobal, I.. (2008). Concentrations of Rn-222 and Rn-220 in indoor air. in Acta Chimica Slovenica, 55(1), 160-165.
https://hdl.handle.net/21.15107/rcub_vinar_3390

Vaupotič J, Čeliković IT, Smrekar N, Žunić ZS, Kobal I. Concentrations of Rn-222 and Rn-220 in indoor air. in Acta Chimica Slovenica. 2008;55(1):160-165.
https://hdl.handle.net/21.15107/rcub_vinar_3390 .

Vaupotič, Janja, Čeliković, Igor T., Smrekar, Natasa, Žunić, Zora S., Kobal, Ivan, "Concentrations of Rn-222 and Rn-220 in indoor air" in Acta Chimica Slovenica, 55, no. 1 (2008):160-165,
https://hdl.handle.net/21.15107/rcub_vinar_3390 .