Spatial distribution mapping and radiological hazard assessment of groundwater and soil gas radon in Ekiti State, Southwest Nigeria

2018 ◽  
Vol 77 (14) ◽  
Author(s):  
Y. Ajiboye ◽  
M. O. Isinkaye ◽  
M. U. Khanderkar
Keyword(s):  
Spatial Distribution ◽  
Hazard Assessment ◽  
Soil Gas ◽  
Radiological Hazard ◽  
Soil Gas Radon ◽  
Distribution Mapping ◽  
Southwest Nigeria

scholarly journals Radiological Assessment of Indoor Radon and Thoron Concentrations and Indoor Radon Map of Dwellings in Mashhad, Iran

2020 ◽  
Vol 18 (1) ◽  
pp. 141
Author(s):  
Mohammademad Adelikhah ◽  
Amin Shahrokhi ◽  
Morteza Imani ◽  
Stanislaw Chalupnik ◽  
Tibor Kovács
Keyword(s):  
Limit Of Detection ◽  
Indoor Radon ◽  
Absolute Error ◽  
Soil Gas ◽  
Indoor Radon Concentration ◽  
Soil Gas Radon ◽  
Distance Weighting ◽  
The City ◽  
Monitoring Devices ◽  
Radon Concentrations

A comprehensive study was carried out to measure indoor radon/thoron concentrations in 78 dwellings and soil-gas radon in the city of Mashhad, Iran during two seasons, using two common radon monitoring devices (NRPB and RADUET). In the winter, indoor radon concentrations measured between 75 ± 11 to 376 ± 24 Bq·m−3 (mean: 150 ± 19 Bq m−3), whereas indoor thoron concentrations ranged from below the Lower Limit of Detection (LLD) to 166 ± 10 Bq·m−3 (mean: 66 ± 8 Bq m−3), while radon and thoron concentrations in summer fell between 50 ± 11 and 305 ± 24 Bq·m−3 (mean 115 ± 18 Bq m−3) and from below the LLD to 122 ± 10 Bq m−3 (mean 48 ± 6 Bq·m−3), respectively. The annual average effective dose was estimated to be 3.7 ± 0.5 mSv yr−1. The soil-gas radon concentrations fell within the range from 1.07 ± 0.28 to 8.02 ± 0.65 kBq·m−3 (mean 3.07 ± 1.09 kBq·m−3). Finally, indoor radon maps were generated by ArcGIS software over a grid of 1 × 1 km2 using three different interpolation techniques. In grid cells where no data was observed, the arithmetic mean was used to predict a mean indoor radon concentration. Accordingly, inverse distance weighting (IDW) was proven to be more suitable for predicting mean indoor radon concentrations due to the lower mean absolute error (MAE) and root mean square error (RMSE). Meanwhile, the radiation health risk due to the residential exposure to radon and indoor gamma radiation exposure was also assessed.

Measurements of radon flux and soil-gas radon concentration along the Main Central Thrust, Garhwal Himalaya, using SRM and RAD7 detectors

2013 ◽  
Vol 61 (4) ◽  
pp. 950-957 ◽  
Author(s):  
Abhay Anand Bourai ◽  
Sunita Aswal ◽  
Anoop Dangwal ◽  
Mukesh Rawat ◽  
Mukesh Prasad ◽  
...  
Keyword(s):  
Radon Concentration ◽  
Soil Gas ◽  
Garhwal Himalaya ◽  
Main Central Thrust ◽  
Radon Flux ◽  
Soil Gas Radon

Radiological hazard assessment for building materials incorporating phosphogypsum made using Eshidiya mine rock in Jordan

2013 ◽  
Vol 71 (5) ◽  
pp. 2257-2266 ◽  
Author(s):  
Mohammad Al-Hwaiti ◽  
Omar Al-Khashman ◽  
Laila Al-Khateeb ◽  
Feras Freig
Keyword(s):  
Hazard Assessment ◽  
Building Materials ◽  
Radiological Hazard

Geological significance of soil gas radon: A case study of Nurpur area, district Kangra, Himachal Pradesh, India

2006 ◽  
Vol 41 (4) ◽  
pp. 482-485 ◽  
Author(s):  
Surinder Singh ◽  
Dinesh Kumar Sharma ◽  
Sunil Dhar ◽  
Surjit Singh Randhawa
Keyword(s):  
Himachal Pradesh ◽  
Soil Gas ◽  
Geological Significance ◽  
Soil Gas Radon

Time-variation of the soil gas radon concentration under and near a Swedish house

1996 ◽  
Vol 22 ◽  
pp. 477-482 ◽  
Author(s):  
Lynn Marie Hubbard ◽  
Nils Hagberg
Keyword(s):  
Time Variation ◽  
Radon Concentration ◽  
Soil Gas ◽  
Soil Gas Radon

Temporal Variation of Soil Gas Radon Associated with Seismic Activity: A Case Study in NW Greece

2019 ◽  
Vol 177 (2) ◽  
pp. 821-836 ◽  
Author(s):  
C. Papachristodoulou ◽  
K. Stamoulis ◽  
K. Ioannides
Keyword(s):  
Temporal Variation ◽  
Seismic Activity ◽  
Soil Gas ◽  
Soil Gas Radon
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