Assessment of radioactivity from selected soil samples from Halfa Aljadida area, Sudan

2019 ◽  
Vol 107 (6) ◽  
pp. 489-502
Author(s):  
Abd-Elmoniem A. Elzain ◽  
Hajo Idriss ◽  
Yousif Sh. Mohammed ◽  
Khidir Shaib Mohamed ◽  
Mohamed Abd Elwahab Mohamed Ali ◽  
...  
Keyword(s):  
Effective Dose ◽  
Dose Rate ◽  
Linear Correlation ◽  
Radon Concentration ◽  
Soil Samples ◽  
Average Value ◽  
Soil Gas Radon ◽  
Effective Dose Rate ◽  
Alpha Index ◽  
Concentration Surface

Abstract In this research, the results of radon concentration, surface and mass exhalation rates, radium concentration, effective dose rate and the alpha index have been investigated in a number of 198 soil samples that have been collected from various residential locations of Halfa Aljadida area, Sudan. The can technique, containing CR-39 have been used. From our results, the average value of soil gas radon concentration was found to be 1.96±0.22 kBq·m−3. The average values of surface and mass exhalation rates were 1.73±0.19 Bq·m−2·h−1 and 34.79±3.87 mBq·kg−1·h−1, respectively. The radium concentration average value was 8.06±0.90 Bq·kg−1. While the average value of the effective dose rate was recorded to be 54.69±6.11 mSv·y−1. The average value of alpha index of studied samples was (4.03±0.45)×10−2. From the study, a good positive and linear correlation between radium concentration, surface and mass exhalation rates of soil samples were present. In addition to that, a positive and linear correlation between radium and radon concentrations was found. Finally, a comparison between the results and other findings was conducted and the results imply the fact that the area under consideration is safe as if the health hazard are mentioned.

Measuring the Pollution Level with Uranium and Radon in the Soil of Some Areas Inside Baghdad University Campus-AL-Jadiriyah

2021 ◽  
Vol 19 (7) ◽  
pp. 72-77
Author(s):  
Farah Faris Kaddoori ◽  
Basim Khalaf Rejah ◽  
Wijdan Thamer Fzaa
Keyword(s):  
Effective Dose ◽  
Dose Rate ◽  
Track Detector ◽  
Soil Samples ◽  
Pollution Level ◽  
University Campus ◽  
Nuclear Track Detector ◽  
Average Value ◽  
Effective Dose Rate ◽  
Radon Concentrations

In present study, the technique was used, including nuclear track detector type (CR-39), for appreciative concentrations uranium and radon in soil samples from Baghdad University Campus-AL-Jadiriyah utilizing a prolonged -term with a solid-state nuclear path sensor, a technique for charged particles has been developed., the radon concentrations, effective dose rate and uranium concentrations have measured in soil samples. Eight various venues from soil Baghdad University Campus have appointed. The results indicated variant values about uranium and radon concentrations, the average value for radon gas, effective dose rate and uranium concentrations was found to be 281.59 Bq/cm3, 7.09 mSv/y and 0.01 Bq/mm-2 respectively. All results appeared that concentrations for radon and uranium in soil are infra the permitted limit from (ICRP) agency which are 1100 Bq/m3 and 11.7 (mg. Kg- 1) ppm respectively. All results were comparison with the domestic and worldwide results.

Indoor Radon and Thoron Concentration and the Associated Effective Dose Rate Determination in Dwellings of Suq Alshouk, Thiqar (Iraq)

2021 ◽  
Vol 19 (12) ◽  
pp. 06-10
Author(s):  
Hussam Najem Abood ◽  
Ahmed Abbas Mohamed
Keyword(s):  
Effective Dose ◽  
Dose Rate ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Type Ii ◽  
Average Value ◽  
Effective Dose Rate

Indoor radon/thoron concentration has been determined in some dwellings of Suq Alshouk district in Thiqar Governorate southern of Iraq, using LR-115 type II and CR-39 (SSNTDs). In this work the indoor radon/thoron concentration varies from (8-73) Bq m-3 for radon with an average 35±2Bq m-3, and ranges (1- 47) Bq m-3 for thoron with an average16±2Bq m-3. The average annual effective dose due to radon and thoron varies from 0.43-3.38m Sv y-1 with average value 1.43±0.11 mSv y-1.

Radon concentration and radon effective dose rate in dwellings of some villages in the district of Ajloun, Jordan

2012 ◽  
Vol 70 (8) ◽  
pp. 1579-1582 ◽  
Author(s):  
H.M. Al-Khateeb ◽  
A.A. Al-Qudah ◽  
F.Y. Alzoubi ◽  
M.K. Alqadi ◽  
K.M. Aljarrah
Keyword(s):  
Effective Dose ◽  
Dose Rate ◽  
Radon Concentration ◽  
Effective Dose Rate

Study of the radioactivity in environmental soil samples from Eastern Anatolia Region of Turkey

2018 ◽  
Vol 106 (2) ◽  
pp. 161-168 ◽  
Author(s):  
Şeref Turhan ◽  
Elif Gören ◽  
Fatma Aysun Uğur ◽  
Muhammet Karataşlı ◽  
Zehra Yeğingil
Keyword(s):  
Effective Dose ◽  
Dose Rate ◽  
Nuclear Power ◽  
Annual Effective Dose ◽  
Soil Samples ◽  
Eastern Anatolia ◽  
Lifetime Cancer Risk ◽  
Radiological Parameters ◽  
Effective Dose Rate ◽  
Annual Effective Dose Rate

AbstractIn this study, a detailed γ-ray spectrometer survey was performed to obtain the baseline data on natural and fallout radioactivity in soil samples (10–30 cm depth) collected from Iğdır which is a province in Eastern Anatolia Region of Turkey and located along the border with Armenia. Metsamor Nuclear Power Plant in Eastern Armenia is only about 20 km away from Iğdır province. The average activity concentrations of226Ra,232Th,40K and137Cs in the soil samples were found as 19.1±0.6 (range: 12.8–31.2 Bq kg−1), 21.9±0.6 (range: 11.6–36.8 Bq kg−1), 437.7±10.3 (range: 285.0–613.7 Bq kg−1) and 11.8±1.1 Bq kg−1, (range: 2.5–51.1 Bq kg−1), respectively. The radiological hazards caused by ionizing radiation emitted from these radionuclides on the population living in the region were assessed by estimating radiological parameters such as absorbed γ dose rate in outdoor and the corresponding annual effective dose rate from external exposure, annual effective dose rate from inhalation of radon and excess lifetime cancer risk. The results revealed that there is no significant radiological hazard for human population because the average values of radiological parameters are within the recommended limits.

scholarly journals Determination of soil gas radon concentration from some locations of Gedarif town, Sudan, by using CR-39

2017 ◽  
Vol 32 (1) ◽  
pp. 85-90 ◽  
Author(s):  
Abd-Elmoniem Elzain
Keyword(s):  
Radon Concentration ◽  
Soil Depth ◽  
Soil Samples ◽  
Soil Gas ◽  
World Health ◽  
Average Value ◽  
Can Technique ◽  
Soil Gas Radon ◽  
Health Organization ◽  
Radon Concentrations

This work presents the results of the study of radon concentration in soil gas for 187 measurements of soil samples collected from different locations of Gedarif town in Sudan using the can technique, containing CR-39. From in this work, the soil gas radon concentrations were ranged from 4.20 ? 0.61 kBqm-3 to 15.15 ? 1.62 kBqm-3 with an average of (9.10 ? 1.31) kBqm-3. The annual effective dose was calculated that ranged from 18.71 ? 2.73 mSv to 67.53 ? 7.22 mSv, with an average value of 40.57 ? 5.86 mSv. A good correlation was observed between the radon concentration and soil depth. It was found that soil radon gas concentration increased with depth. The radon concentrations in the soil samples were found to be larger than the allowed limit from the World Health Organization. The results of this work were compared with national and worldwide results.

scholarly journals A study of indoor radon levels and radon effective dose in dwellings of some cities of Gezira State in Sudan

2014 ◽  
Vol 29 (4) ◽  
pp. 307-312 ◽  
Author(s):  
Abd-Elmoniem Elzain
Keyword(s):  
Lung Cancer ◽  
Effective Dose ◽  
Dose Rate ◽  
Radon Concentration ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Indoor Radon Concentration ◽  
Energy Agency ◽  
Effective Dose Rate ◽  
Annual Effective Dose Rate

Exposure to natural sources of radiation, especially 222Rn and its short-lived daughter products has become an important issue throughout the world because sustained exposure of humans to indoor radon may cause lung cancer. The indoor radon concentration level and radon effective dose rate were carried out in the dwellings of Medani, El Hosh, Elmanagil, Haj Abd Allah, and Wad Almahi cities, Gezira State - Central Sudan, in 393 measurements, using passive integrated solid-state nuclear track devices containing allyl diglycol carbonate plastic detectors. The radon concentration in the corresponding dwellings was found to vary from (57 ? 8) Bq/m3 in Medani to 41 ? 9 Bq/m3 in Wad Almahi, with an average of 49 ? 10 Bq/m3. Assuming an indoor occupancy factor of 0.8 and 0.4 for the equilibrium factor of radon indoors, we found that the annual effective dose rate from 222Rn in the studied dwellings ranges from 1.05 to 1.43 mSv per year and the relative lung cancer risk for radon exposure was 1.044%. In this research, we also correlated the relationship of radon concentration and building age. From our study, it is clear that the annual effective dose rate is larger than the ?normal? background level as quoted by UNSCEAR, lower than the recommended action level of ICRP, and less than the maximum permissible dose defined by the International Atomic Energy Agency.

MEASUREMENT OF RADON CONCENTRATION IN SOIL SAMPLES OF MAZAT AND KAFI-HABU MINING SITES, PLATEAU, NIGERIA

2021 ◽  
Vol 4 (4) ◽  
pp. 295-301
Author(s):  
Abubakar Sadiq Aliyu ◽  
Aminu Ismaila ◽  
A. M. Na'Inna ◽  
Ahmed Mohammed
Keyword(s):  
Dose Rate ◽  
Radon Concentration ◽  
Background Radiation ◽  
Average Concentration ◽  
Soil Samples ◽  
Radiological Protection ◽  
Sampling Point ◽  
Monitoring And Control ◽  
Tailing Dump ◽  
Mining Sites

Radon and its short-lived progenies contributed significantly to natural background radiation. Long-term exposure to such radiation increases the probability of lung cancer to persons. To assess the radiological hazards associated with the inhalation of radon gas from ore dust in Mazat and Kafi-Habu mining sites of Plateau, Nigeria, 12 soil samples from an abandoned tailing dump ground were collected and analysed for radon using RAD-7 electronic detector. The dose rate of each sampling point was directly measured using RADOS RDS -120 portable survey meter. The results gave a mean radon concentration ranging from 771.51 ± 21.9 Bq/m3 to 5666.13 ± 28.8 Bq/m3 with 3451.13 ± 42.9 Bq/m3as the average value for all measurements. The average concentration of measurements from Mazat and Kafi-Habu is 3671.6 ± 41.2 Bq/m3 and 3010.16 ± 46.5 Bq/m3 respectively. The average values obtained from the analysis are significantly higher than the upper limit of 300 Bq/m3 set by the International Commission on Radiological Protection (ICRP) suggesting quick remediation on the host communities. The geometrical mean value of Dose Rate (DR) and Annual Effective Dose Equivalent (AEDE) were 870 nGy/hr and 1.04 mSv/yr respectively. Again, these values are above the global average limits of 59 nGy/hr and 1 mSv/yr. The result indicates that miners working in those sites and dwellers of the study areas are at higher risk of getting exposed to radon and need to employ protective measures. This work is useful in monitoring and control of radon level for the on-site workers and the 

scholarly journals Measurement of Indoor Radon Gas Concentration in same Region of Baghdad Governorate Using CR-39 Nuclear Track Detector

2017 ◽  
Vol 14 (4) ◽  
pp. 688-691 ◽  
Author(s):  
Baghdad Science Journal
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Track Detector ◽  
Nuclear Track Detector ◽  
Gas Concentration ◽  
Alpha Emitters ◽  
Average Value ◽  
Radon Gas

In this research the activity of radon gas in air in Baghad governorate,Iraq, using “alpha-emitters track registration (CR-39) track detector were measured. This measurement was done for selected areas from Baghdad Governorate, The results obtained shows that the highest average concentrations for Rn-222 is (179.077 Bq/m^3) which was recorded within Al-Shaaib city and less average concentrations was (15.79 Bq/m^3) in the nearby residential area of Baghdad International Airport and the overall average concentrations is (86.508 Bq/m^3) for these regions. Then the radon concentration was measured annual effective dose calculated from radon concentration and found in range from 0.4031 mSv/y to 4.5179 mSv /y with an average value of 2.1824 mSv/y. The annual effective dose of radon was within the allowed international limits.

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