Radioactivity impact assessment of Nikšić region in Montenegro

Antović, Nevenka M.; Svrkota, Nikola; Antovic, I.; Svrkota, R.; Zizic, R.; Živković, Danko

doi:10.1007/s10967-014-3254-3

Cited by 3 publications

(4 citation statements)

References 5 publications

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“…In com par i son with Bal kan coun tries, spe cific ac tiv i ties for 226 Ra mea sured in Kruševac, con curred well with the val ues of spe cific ac tiv i ties for this radionuclide reported for North Mac e do nia [39,40]. The spe cific activ i ties of 226 Ra in this study were higher than those ob tained in Mojkovac, Montenegro [41], but be low mean val ues re ported for soil in Nikši}, Montenegro [42], Slovenia [43], Istria County (Croatia) [44] and Re pub lic of Srpska (Bosnia and Herzegovina) [45]. The mean spe cific ac tiv ity of 40 K and 232 Th was lower than the mean val ues re ported for the neigh bor ing states.…”

Section: Ta Ble 4 De Scrip Tive Sta Tis Tics Of Spe Cific Ac Tiv I Ties (A S ) Of An a Lyzed Radionuclides In All Soil Sam Plessupporting

confidence: 87%

“…6 and 7, but some dif fer ences exist due to geo log i cal di ver sity. The cal cu lated mean dose rate for Kruševac was two times lower than the dose rates re ported for Nikši}, Montenegro [42], and Slovenia [43]. The rea son lies in the ge ol ogy of those en vi rons since a num ber of sam ples with the high est spe cific ac tiv ity of nat u ral radionuclides were taken from ar eas where calcar e ous sed i ments, clastic sed i ments con tain ing clay, and car bon ate rock are dom i nant rock types hav ing somewhat higher ra di a tion back ground.…”

Section: Ta Ble 6 Mean Val Ues and Ranges (In Pa Ren The Sis) Of Spe Cific Ac Tiv I Ties (As) Of Nat U Ral Radionuclides And 137 Cs And Amentioning

confidence: 60%

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Risk assessment of human exposure to radionuclides in soil of urban areas (public parks and open playgrounds) in Krusevac, Serbia

Tanic¹,

Dinic²,

Mihaljev

et al. 2021

NUCL TECH RAD PROT

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This study aims to obtain data on terrestrial radioactivity coming from naturally occurring (40K, 226Ra, 232Th, and 238U) and artificial (137Cs) radionuclides in surface soil (0-10 cm) of selected eighteen public-access urban areas in Krusevac city, Serbia, and to assess the corresponding health effects for citizens using those areas for recreational purposes. The specific activities of investigated radionuclides were analyzed using HPGe gamma-ray spectrometry. The mean specific activity of 40K, 226Ra, 232Th, 238U, and 137Cs was found to be 353, 39.8, 38.9, 41.0, and 5.9, respectively, in compliance with their values in other parts of Serbia and neighboring countries reported in similar researches. To evaluate the human health risk associated with radionuclides, conservative exposure assumptions and models recommended by the United States Environmental Protection Agency were employed taking into account three exposure routes: ingestion, inhalation of soil, and external irradiation. The absorbed gamma dose rate in the air due to natural radionuclides in soil was calculated. The calculated indices suggested that the radiation risk arising from natural and artificial radionuclides was not significant. The total excess lifetime cancer based on the 95 % upper confidence limit of the specific activities mean was calculated to be 5.89?10?6, lower than the tolerable risk for regulatory purposes (10?4). Among investigated radiation exposure pathways, external exposure was the most contributing one for the health risk. The results obtained for the city's parks and playgrounds suggested their safe use for recreational purposes from the radioecological point of view.

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Section: Ta Ble 4 De Scrip Tive Sta Tis Tics Of Spe Cific Ac Tiv I Ties (A S ) Of An a Lyzed Radionuclides In All Soil Sam Plessupporting

confidence: 87%

Section: Ta Ble 6 Mean Val Ues and Ranges (In Pa Ren The Sis) Of Spe Cific Ac Tiv I Ties (As) Of Nat U Ral Radionuclides And 137 Cs And Amentioning

confidence: 60%

Risk assessment of human exposure to radionuclides in soil of urban areas (public parks and open playgrounds) in Krusevac, Serbia

Tanic¹,

Dinic²,

Mihaljev

et al. 2021

NUCL TECH RAD PROT

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“…5, together with radium equivalent activity (Raeq, eq. (4) For a comparison, the top Rožaje soil (R-1 in Table 2) showed the G and Raeq value of around 356 µSv/y and 108 Bq/kg, respectively; D and E of 90.7 nGy/h, and 111 µSv/y, respectively; i.e., higher than those for N. Pazar -resulting in a higher excess lifetime cancer risk (3.89⋅10 -4 ), which is lower than an average found for Nikšić in Montenegro (4.4⋅10 -4 ) [18].…”

Section: Soil Measurementsmentioning

confidence: 74%

Soil and Vegetation From Novi Pazar (Serbia) and Rožaje (Montenegro): Radioactivity Impact Assessment

Antovic¹,

Svrkota²,

Stojanović³

et al. 2016

RadJ

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Abstract. Soil samples from Novi Pazar (Serbia) and Rožaje (Montenegro) were analyzed by the ORTEC HPGe detectors with relative efficiencies of 35 and 40 % for radioactivity of 226 Ra, 232 Th/ 228 Ac, 40 K and 137 Cs. An average radioisotope activity concentration for Novi Pazar soil was found to be 27.6, 49.5, 585 and 14.9 Bq/kg, respectively; while in Rožaje, 137 Cs activity concentration was found to be significantly higher -from 33.9 to 322 Bq/kg. The obtained results were used to estimate hazard indices, such as radium equivalent activity (none of the localities showed a radium equivalent activity higher than 370 Bq/kg) and annual gonadal dose equivalent to natural radioisotopes, as well as external terrestrial gamma absorbed dose rate of 226 Ra, 232 Th/ 228 Ac, 40 K and 137 Cs, and corresponding annual effective dose -used to evaluate excess lifetime cancer risk (then compared with the world average of 0.2⋅10 -3 , taking into account external terrestrial radiation -outdoor, i.e., average annual effective dose of 0.07 mSv). Vegetation samples from Rožaje -blackberry (Rubus fruticosus), spruce (Picea abies) and beech (Fagus sylvatica) showed 226 Ra activity -4.03, 1.1 and 0.99 Bq/kg, respectively; 232 Th/ 228 Ac -4.5, <1.22 and 2.89 Bq/kg, respectively; 40 K -152, 98.4 and 79.3 Bq/kg, respectively; 137 Cs -3.05, 3.54 and 5.24 Bq/kg, respectively; whilst in Pinus sylvestris from Novi Pazar, they were -2.7, 2.11, 163, <0.34 Bq/kg, respectively. Soil-plant radioisotope transfer factors were also estimated, and compared with typical ranges given in the UNSCEAR 2008 report. Since the most important radiation source for all terrestrial biota is the activity from soil, the dose rates are also evaluated using known internal (and external -in soil) radioisotope activity concentrations, as well as corresponding the dose conversion coefficients for external and internal exposure to particular radioisotope.

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“…The activity concentration index is defined as 12 I = Ac( 226 Ra)/300+Ac( 232 Th)/200+Ac( 40 K)/3000, (4) and it applies to the building material, in excess of typical external outdoor exposure, and its value of 1 relates to the gamma radiation dose from building materials, i.e. its reference level of 1 mSv per year.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Radioactivity in Montenegro Soil Using a Statistical Approach

Antović¹,

Svrkota²

2020

RAP 2019 Conference Proceedings

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Surface soil from 47 locations in Montenegro had been previously analyzed for radioactivity due to natural 226 Ra, 232 Th, 40 K and man-made 137 Cs, and showed mean activity concentrations around 41.1, 45.8, 500 and 95.2 Bq/kg, respectively. Discriminant Analysis used in the present study for the classification, with activity concentrations of radionuclides as independent variables and the Montenegro region (South, Center, North) as a grouping variable, showed 76.6% of original grouped cases as correctly classified. The radium equivalent activity, external and internal hazard index showed a mean of 142 Bq/kg, 0.39 and 0.5, respectively. An average external terrestrial gamma absorbed dose rate was found to be 67.5 nGy/h -for natural radionuclides only, and 79.3 nGy/h for natural radionuclides and 137 Cs. The corresponding annual effective dose showed a mean of 0.08 mSv and around 0.1 mSv, respectively. These hazard indices, together with radionuclide activities, are used in the factor analysis performed with Principal Component Analysis as the extraction method and Varimax with Kaiser Normalization as the rotation method. Two components were extracted. The first one loaded basically on 232 Th and 226 Ra activity explained 80.6% of the total variance, while the second component explaining 12.2% of the total variance is found to be strongly correlated with 137 Cs and 40 K activity.

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Radioactivity impact assessment of Nikšić region in Montenegro

Cited by 3 publications

References 5 publications

Risk assessment of human exposure to radionuclides in soil of urban areas (public parks and open playgrounds) in Krusevac, Serbia

Risk assessment of human exposure to radionuclides in soil of urban areas (public parks and open playgrounds) in Krusevac, Serbia

Soil and Vegetation From Novi Pazar (Serbia) and Rožaje (Montenegro): Radioactivity Impact Assessment

Evaluation of Radioactivity in Montenegro Soil Using a Statistical Approach

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