scholarly journals Determination of Indoor Radon Concentration and Effective Dose Equivalent at Workplaces of Afyonkarahisar Province

2018 ◽  
Vol 13 (2) ◽  
pp. 29-35 ◽  
Author(s):  
Hüseyin Ali YALIM ◽  
Ayla GÜMÜŞ ◽  
Rıdvan ÜNAL
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Indoor Radon ◽  
Effective Dose Equivalent ◽  
Dose Equivalent ◽  
Indoor Radon Concentration

Measurement of the radon exhalation rate and effective radium concentration in soil samples of southern Sakarya, Turkey

2016 ◽  
Vol 27 (2) ◽  
pp. 278-288 ◽  
Author(s):  
Emre Tabar ◽  
Hakan Yakut ◽  
Adem Kuş
Keyword(s):  
Radon Concentration ◽  
Indoor Radon ◽  
Soil Samples ◽  
Effective Dose Equivalent ◽  
Exhalation Rate ◽  
Dose Equivalent ◽  
Indoor Radon Concentration ◽  
Radon Exhalation ◽  
Average Value ◽  
Radon Exhalation Rates

In the present study, radon exhalation rates in terms of mass and area, as well as the effective radium concentration in soil samples collected simultaneously from different districts of southern Sakarya have been measured by Sealed Can technique using LR-115 type-II detectors. Mass and areal radon exhalation rates in soil samples vary from 35.76 ± 1.5 to 253.15 ± 3.8 mBqkg−1h−1 with an average value of 112.53 ± 2.7 mBqkg−1h−1 and 0.73 ± 0.2 to 5.18 ± 0.6 Bqm−2h−1 with an average value of 2.30 ± 0.6 Bqm−2h−1, respectively. The effective radium content was found to vary in the range 3.77 ± 0.5 to 26.69 ± 1.3 Bqkg−1 with an average value of 11.86 ± 0.9 Bqkg−1. The area exhalation rate was also used to calculate indoor radon concentration contributed by radon exhalation from soil, and to estimate annual effective dose equivalent. While the indoor radon concentration contributed by radon exhalation from soil varies from 2.93 ± 0.9 to 20.73 ± 2.3 Bqm−3 with an average value of 9.22 ± 1.5 Bqm−3, the estimated effective dose equivalent varies from 0.09 to 0.61 mSvy−1 with an average value of 0.27 mSvy−1.

Determination of Collective Effective Dose Equivalent due to Computed Tomography in Denmark in 1989

1992 ◽  
Vol 43 (1-4) ◽  
pp. 37-40
Author(s):  
K.A. Jessen ◽  
J.J. Christensen ◽  
J. Jørgensen ◽  
J. Petersen ◽  
E.W. Sørensen
Keyword(s):  
Computed Tomography ◽  
Effective Dose ◽  
Effective Dose Equivalent ◽  
Dose Equivalent

The Alpha Particle Doses Received by Students and Staff in Twenty Schools in the North of Hebron Region - Palestine

2021 ◽  
Vol 14 (4) ◽  
pp. 309-316
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Alpha Particles ◽  
Indoor Radon Concentration ◽  
The North ◽  
Cr 39 Detectors ◽  
Average Effective Dose ◽  
Radon Concentrations

Abstract: The aim of the current study was to measure indoor radon concentration levels and its resulting doses received by the students and staff in schools of the directorate of education in the north of Hebron region- Palestine, during the summer months from June to September (2018), using CR-39 detectors. In this study, a total of 567 CR-39-based radon detectors were installed in the selected schools. The average radon concentrations were found to be 90.0, 66.5 and 58.0 Bqm-3 in Halhul, Beit Umar and Alarrub camp schools, respectively. Based on the measured indoor radon data, the overall average effective dose for the studied area was found to be 0.31 mSvy-1. Reported values for radon concentrations and corresponding doses are lower than ICRP recommended limits for workplaces. The results show no significant radiological risk for the pupils and staff in the schools under investigation. Consequently, the health hazards related to radiation are expected to be negligible. Keywords: Radon concentration, Alpha particles, Annual effective dose, Schools. PACs: 29.40.−n.

Determination of Collective Effective Dose Equivalent due to Computed Tomography in Denmark in 1989

1992 ◽  
Vol 43 (1-4) ◽  
pp. 37-40 ◽  
Author(s):  
K.A. Jessen ◽  
J.J. Christensen ◽  
J. Jørgensen ◽  
J. Petersen ◽  
E.W. Sørensen
Keyword(s):  
Computed Tomography ◽  
Effective Dose ◽  
Effective Dose Equivalent ◽  
Dose Equivalent

scholarly journals Measurement of indoor radon concentration and actual effective dose estimation of schools at high radon area in Korea

2011 ◽  
Vol 46 (6) ◽  
pp. S91-S91 ◽  
Author(s):  
B.U. Chang ◽  
Y.J. Kim ◽  
M.H. Song ◽  
G.H. Kim ◽  
S.Y. Jeong ◽  
...  
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Indoor Radon ◽  
Dose Estimation ◽  
Indoor Radon Concentration

INDOOR RADON CONCENTRATION AND RISK ASSESSMENT IN SOME DWELLINGS OF OBUASI, MINING TOWN

2019 ◽  
Vol 188 (1) ◽  
pp. 30-37
Author(s):  
Irene Opoku-Ntim ◽  
Aba Bentil Andam ◽  
Vicenzo Roca ◽  
J J Fletcher ◽  
T T Akiti
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Rainy Season ◽  
Building Materials ◽  
Indoor Radon ◽  
Dry Season ◽  
Indoor Radon Concentration ◽  
Mining Town ◽  
222Rn Concentration ◽  
Materials Used

Abstract 222Rn concentration indoors was measured in 40 dwellings in the Obuasi municipality, a gold-mining town in the Ashanti Region of Ghana using the LR 115 type II strippable detectors for the two major seasons in Ghana, rainy and dry. The detectors were placed in the bed rooms of dwellers for 6 months each. Average indoor radon concentration varied from 63.9 to 364.9 Bqm−3 with a mean of 152.2 ± 10.9 Bqm−3 in the rainy season and 26.1–119.0 Bqm−3 with a mean of 50.5 ± 3.9 Bqm−3 in the dry season. The effective dose of 3.90 ± 0.3 mSvy−1 for the rainy season and for the dry season, effective dose of 0.6 mSvy−1 were recorded. The seasonal variation of 222Rn concentration indoors showed higher values in the rainy season than the dry season. A dependence was observed between the type of building materials used in building and the indoor radon level.

Variation of indoor radon concentration and ambient dose equivalent rate in different outdoor and indoor environments

2016 ◽  
Vol 55 (2) ◽  
pp. 171-183 ◽  
Author(s):  
Zdenka Stojanovska ◽  
Blazo Boev ◽  
Zora S. Zunic ◽  
Kremena Ivanova ◽  
Mimoza Ristova ◽  
...  
Keyword(s):  
Radon Concentration ◽  
Indoor Radon ◽  
Indoor Environments ◽  
Dose Equivalent ◽  
Indoor Radon Concentration ◽  
Equivalent Rate ◽  
Ambient Dose Equivalent ◽  
Ambient Dose
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