Measurement of activity concentration of primordial radionuclides in soil samples from Thirthahalli taluk and the assessment of resulting radiation dose

2018 ◽  
Vol 316 (2) ◽  
pp. 501-511 ◽  
Author(s):  
G. M. Shilpa ◽  
B. N. Anandaram ◽  
T. L. Mohankumari
Keyword(s):  
Radiation Dose ◽  
Activity Concentration ◽  
Soil Samples ◽  
Primordial Radionuclides

scholarly journals Thoron emanation and exhalation of Slovenian soils determined by a PIC detector-equipped radon monitor

Nukleonika ◽  
2016 ◽  
Vol 61 (3) ◽  
pp. 379-384 ◽  
Author(s):  
Jácint Jónás ◽  
Zoltán Sas ◽  
Janja Vaupotic ◽  
Erika Kocsis ◽  
János Somlai ◽  
...  
Keyword(s):  
Health Risk ◽  
Gamma Spectrometry ◽  
Half Life ◽  
Activity Concentration ◽  
Soil Samples ◽  
Radon Emanation ◽  
Decay Products ◽  
Radon Monitor ◽  
Hpge Gamma Spectrometry ◽  
Chamber Technique

Abstract The health risk from thoron (Rn-220) is usually ignored owing to its short half-life (55.6 s), but the generated thoron decay products can cause a significant dose contribution. In this study, altogether 51 Slovenian soil samples were investigated using an accumulation chamber technique to obtain information about thoron exhalation features. The obtained (massic) thoron exhalation results varied between 6.9 and 149 mBq·kg−1·s−1 (average: 55.2 mBq·kg−1·s−1). The Th-232 content was determined using HPGe gamma spectrometry. The Th-232 activity concentration ranged between 9.3 and 161.7 Bq·kg−1 (average: 64.6 Bq·kg−1). The thoron emanation features were also calculated from the obtained results (2.9 to 21.2% with an average of 8.6%). The thoron exhalation and emanation properties were compared with the radon exhalation and emanation features determined in a previous study. It was found that there was no correlation between the radon and thoron emanation features, according to the obtained data. This can be explained by the different Ra-224 and Ra-226 distributions in the soil grains. As a result, the thoron emanation factor cannot be predicted from radon emanation and vice versa.

scholarly journals Determination of the activity concentration levels of the artificial radionuclide137Cs in soil samples collected from Qatar using high-resolution gamma-ray spectrometry

2016 ◽  
Vol 44 ◽  
pp. 1660237
Author(s):  
Huda Al-Sulaiti ◽  
Tabassum Nasir ◽  
K. S. Al Mugren ◽  
N. Alkhomashi ◽  
N. Al-Dahan ◽  
...  
Keyword(s):  
High Resolution ◽  
Nuclear Power ◽  
Activity Concentration ◽  
Gamma Ray ◽  
Germanium Detector ◽  
Soil Samples ◽  
Gamma Ray Spectrometry ◽  
Activity Concentrations ◽  
High Resolution Gamma

The goal of this study was to establish the first baseline measurements for radioactivity concentration of the artificial radionuclide [Formula: see text]Cs in soil samples collected from the Qatarian peninsula. The work focused on the determination of the activity concentrations levels of man-made radiation in 129 soil samples collected across the landscape of the State of Qatar. All the samples were collected before the most recent accident in Japan, “the 2011 Fukushima Dai-ichi nuclear power plant accident”. The activity concentrations have been measured via high-resolution gamma-ray spectrometry using a hyper-pure germanium detector situated in a low-background environment with a copper inner-plated passive lead shield. A radiological map showing the activity concentrations of [Formula: see text]Cs is presented in this work. The concentration was[Formula: see text]found to range from 0.21 to 15.41 Bq/kg. The highest activity concentration of [Formula: see text]Cs was observed in sample no. 26 in North of Qatar. The mean value was found to be around 2.15 ± 0.27 Bq/kg. These values lie within the expected range relative to the countries in the region. It is expected that this contamination is mainly due to the Chernobyl accident on 26 April 1986, but this conclusion cannot be confirmed because of the lack of data before this accident.

scholarly journals Results of international comparison tests on determination of 137Cs activity concentration in soil samples

2020 ◽  
Vol 13 (4) ◽  
pp. 101-109
Author(s):  
V. P. Ramzaev ◽  
Ch. Bernhardsson ◽  
A. A. Dvornik ◽  
Zh. V. Bakarikova ◽  
O. Karlberg ◽  
...  
Keyword(s):  
International Comparison ◽  
Activity Concentration ◽  
Soil Samples

Natural Radioactivity Measurement in Soil Samples From The New Kufa University Location, Iraq

2013 ◽  
Vol 3 (2) ◽  
pp. 232-240 ◽  
Author(s):  
Heiyam Najy Majeed ◽  
Ali . K. Hasan
Keyword(s):  
Effective Dose ◽  
Dose Rate ◽  
Activity Concentration ◽  
Annual Effective Dose ◽  
Absorbed Dose ◽  
Soil Samples ◽  
Absorbed Dose Rate ◽  
World Average ◽  
Two Samples ◽  
The World

Al-Najaf Al-Ashraf city on of the most important cities in Iraqi country it was chosen as the cultural Islamic capital for 2012 by the Islamic world ,Kufa university will be played big role of liability, cultural and education efficacies, this city had been exposed to artillery bombard expand along different areas in 1991 and 2003 in our research we try to test the studying area to know The total absorbed dose rate and the most possible hazards for this reasons the study was done. The natural radiation of thirty two samples of soil which collected randomly in June 2012 from the new Kufa University location were measured using Na(Tl) detection. The mean values activity concentrations of 238U, 232Th and 40K was (25.73±11.23 , 3.72±0.81 and 165.16±9.39 ) Bq kg-1 respectively . The highest value of the Radium equivalent activity was (30.870) Bq.kg–1 in (S2) which mean that all the soil samples values lower than (370Bq kg-1) the world average . External and internal hazard and gamma activity concentration (representative level index) indexes were lower than unity for all samples . The average value of absorbed dose rate calculated from activity concentration of 238U , 232Th and 40K was (20.553) nGy h-1 this value coincident to recommended. Annual effective dose in (?Sv/y) varies from (36.912) (?Sv/y) in (S15) to (15.460) (?Sv/y) in (S8) , all the soil samples have the annual effective dose less than the world average 460 (?Sv/y). The results can be consider as base values for distribution of natural radionuclides in the region and will be used as references information to assess any changed in the radioactive background level due to geological processes.

Naturally Occurring Radionuclides in Soil Samples of Bureti Sub-County of Kericho County Kenya

2021 ◽  
Author(s):  
C K Rotich ◽  
N O Hashim ◽  
M W Chege ◽  
C Nyambura
Keyword(s):  
Activity Concentration ◽  
Soil Samples ◽  
Radiation Hazard ◽  
Average Dose ◽  
The Public ◽  
Dose Rates ◽  
Average Value ◽  
Naturally Occurring ◽  
Naturally Occurring Radionuclides ◽  
Average Activity

Abstract The activity concentration of soil samples of Bureti sub-county was measured using thallium-activated sodium iodide detector. To ascertain the level of radiation hazard to the public, gamma radiation dose rates were also estimated. The average activity concentration due to 40K, 226Ra and 232Th for soil samples are 1164 ± 70, 106 ± 8 and 79 ± 5 Bqkg−1, respectively. An average dose rate of 145 ± 10 nGyh−1 was recorded, which is about 2.5 times higher than the world average value of 60 nGyh−1(UNSCEAR). On the other hand, an average outdoor effective dose of 0.35 ± 0.02 mSvy−1 was measured, which is lower than the ICRP safety limit of 1 mSvy−1. This shows that the radiation hazards from naturally occurring terrestrial radionuclides in Bureti is low and therefore human radiation exposure is within the accepted limits.

Gamma Radiation Dose from Radionuclides in Soil Samples of Udagamandalam (Ooty) in India

1999 ◽  
Vol 82 (3) ◽  
pp. 225-228 ◽  
Author(s):  
S. Selvasekarapandian ◽  
N. Muguntha Manikandan ◽  
R. Sivakumar ◽  
S. Balasubramanian ◽  
T. Venkatesan ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Gamma Radiation ◽  
Soil Samples ◽  
Gamma Radiation Dose

scholarly journals Study of gross alpha and gross beta activity concentration in sediment and soil samples of three southern districts of Tamil Nadu

2016 ◽  
Vol 4 (2) ◽  
pp. 319
Author(s):  
A. Priya Latha ◽  
G. Shanthi
Keyword(s):  
Urban Area ◽  
Tamil Nadu ◽  
Activity Concentration ◽  
Alpha Activity ◽  
Soil Samples ◽  
Beta Activity ◽  
Gross Beta ◽  
Gross Alpha ◽  
Gross Beta Activity ◽  
Gross Alpha Activity

<div><p><em>Human can be exposed to the radiation emitting from different radioactive sources depending upon their activities and surroundings. Human activities have contributed to the increased concentration of some radionuclides in the environment. A survey of the gross alpha and gross beta activity in soil samples collected along the three southern districts of TamilNadu has been carried out. Determination of the gross alpha and gross beta activity concentration are done by using ZnS (Ag) and low beta counter. The gross alpha activity varies from 162.3 Bq/kg to 3679.6 Bq/kg near the sea and ranges from 107.5 Bq/kg to 1774.1 Bq/kg 150 m away from the sea. The gross alpha activity in the sub-urban area varies from 53.67 Bq/kg to 644.12 Bq/kg. The gross beta activity concentration in the soil ranges from 388.8 Bq/kg to 40111.1 Bq/kg in the coastal region (near the sea) and ranges from 669.06 Bq/kg to13278.4 Bq/kg (150 m away from the sea). While the gross beta activity concentration in the sub-urban area varies from 1103.05 Bq/kg to 4202.12 Bq/kg. The obtained values shows soil from the sampled locations may pose some long time health hazards to the public. Statistical analysis are also performed between the soil samples. <strong></strong></em></p></div>

scholarly journals DETERMINATION OF THE URANIUM CONTENT IN SOME SOIL SAMPLES FROM AJAOKUTA, KOGI STATE: NIGERIA

2019 ◽  
Vol 7 (9) ◽  
pp. 252-258
Author(s):  
Aruwa Arome ◽  
Philibus Musa Gyuk ◽  
Achor Mathias Ogwo ◽  
Isah Suleiman
Keyword(s):  
Activity Concentration ◽  
Pulse Height ◽  
Uranium Content ◽  
Mean Value ◽  
Soil Samples ◽  
Pulse Height Analyzer ◽  
The World ◽  
The Mean ◽  
Good Agreement

This work present the Uranium (238U) content in soil samples collected in Ajaokuta from some villages was been determined. The measurement of the soil Uranium activity concentration were made using a multi–channel pulse height analyzer (Camberra series 10 plus) coupled to a 76.2mm x 76.2mm NaI (TI) scintillation detector. 2.93)The mean Uranium content in the analyzed samples was found to be (44.26 Bq/kg which is higher than the world mean value of 35Bq/kg. The results were in good agreement with others for soils from region which is considered as normal or slightly high in radioactivity level.

scholarly journals The Activity Concentration of Radionuclides (226Ra, 232Th and 40K) in Soil Samples and Associated Health Hazards in Natore, Kushtia and Pabna District of Bangladesh

2020 ◽  
Vol 43 (2) ◽  
pp. 169-180
Author(s):  
Md Samiul Ehsan ◽  
Md Faisal Rahman ◽  
Nafisa Tabassum ◽  
Md Mahidul Haque Prodhan ◽  
Shikha Pervin ◽  
...  
Keyword(s):  
Activity Concentration ◽  
Hazard Index ◽  
Mean Value ◽  
Soil Samples ◽  
Gamma Ray Spectrometry ◽  
Absorbed Dose Rate ◽  
Radium Equivalent Activity ◽  
Artificial Radioactivity ◽  
Average Value ◽  
The Mean

The study has been carried out to measure the activity concentration of natural and anthropogenic radionuclides in fifteen(15) soil samples of Natore, Kushtia and Pabna district, which are around the 30 km peripheral area of Rooppur Nuclear Power Plant, by gamma ray spectrometry system using a High Purity Germanium (HPGe) detector. It is found that the activity concentration of 226Ra, in the collected sample was from 3.52 Bq/kg to 28.5 Bq/kg with the average value of 12.42 Bq/kg. For 232Th, the range was from 4.18 Bq/kg to 34.5 Bq/kg with the average value of 12.6 Bq/kg. Finally, the activity concentration of 40K, in the collected sample was in the range of 84 Bq/kg to 345 Bq/kg, and the average value was 198.9 Bq/kg. The absorbed dose rate (D) was found to be in the range of 4.59 nGy/h to 40.93 nGy/h with the mean value 21.3 nGy/h. The annual effective dose (E) was in the range of 0.006 mSv/yr to 0.152 mSv/yr with an average of 0.033 mSv/yr. The radium equivalent activity was in the range from 10.02 Bq/kg to 89 Bq/kg with an average of 44.99 Bq/kg. The external hazard index (Hex) was found to be in the range of 0.027 to 0.242 with the mean value of 0.121 and the internal hazard index (Hin) was found to be in the range of 0.044 to 0.302 with the mean value of 0.156. All the values are much below the recommended limit by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), 35 Bq/kg for 226Ra, 30 Bq/kg for 232Th and 400 Bq/kg for 40K. According to international and national regulation, the annual dose to members of the public, 1 mSvy-1 and Hex & Hin must be lower than unity. Moreover, no artificial radioactivity was found in the soil samples of this study area. This research concludes that the found values are within the permissible limits as required by the Nuclear Safety and Radiation Control(NSRC) Rules-1997 of Bangladesh and International Atomic Energy Agency(IAEA) Safety Standards- General Safety Requirements (GSR): Part-3. Journal of Bangladesh Academy of Sciences, Vol. 43, No. 2, 169-180, 2019

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