Determining the radon exhalation rate from a gold mine tailings dump by measuring the gamma radiation

Radon Measurement and Radiological Dose Assessment From Terrestrial Rocks Using Solid-State Nuclear Track Detectors

“…In all European nations, the allowable effective dosage from occupational radiation dose is 20 mSvy -1 , whereas, in the United States, it is 50 mSvy -1 . In this regard, the obtained results are in agreement with the literature published data for the similar environment of different countries [3,13,[26][27][28][29][30][31][32][33][34][35][36]. Figure (4) shows a comparison between radon concentration results for NTD, sample (N3) that has a high value of radon concentration due to increasing content of 238 U and 226 Ra activity concentration; on the other hand, sample coded (S1) has a low value of radon concentration due to low level of 238 U. R* = Reference of permissible limit dose volume of the container, the surface area of the sample, and the radon decay constant.…”

Environmental Radioactivity Monitoring Using High Resolution Gamma-ray Spectrometer for Lake Manzala in Egypt

“…The comparison between the activity concentration values of 238 U gamma-emitting daughter nuclides ( 214 Bi, 214 Pb, 226 Ra, and 234 Th) is shown in Fig. (2). One can observe that while 234 Th and 226 Ra activity concentrations are close to each other in most of the samples, they differ significantly from the corresponding values of activity concentrations of 214 Bi and 214 Pb.…”

“…We inhale radionuclides from the air, soil, water, and food every day since natural radioactivity is common in rocks, especially in Uranium, coal, and mineral mines. Environmental radiation is due to various radioactive nuclides present in the sediment and rocks distributed depending on the region's geological and geographical features, so radionuclides have been present on the earth's surface [1][2][3][4]. Among the different isotopes of radon, focus is made on 222 Rn (with a half-life of 3.82 days), which decays into many short-lived isotopes.…”

“…Deposit of the area of the Lake has been reduced effectively; its importance increased; as it is connected to the Mediterranean Sea and Suez Canal, in addition to many drains. Additionally, Lake Manzala is characterized by a large number of islets (about 1022) comprising approximately 180 km 2 . All these factors give it a particular importance.…”

Evaluation of Radon Radioactivity and Radiological Impact by Using Solid-State Nuclear Track Detector for Erediya younger granites of Central Eastern Desert in Egypt

“…Solid-State Nuclear Track Detectors (SSNTDs) are used widely in technical applications for numerous investigations of environmental radioactivity and geophysics studies. Environmental radiation is due to various radioactive nuclides present in the sediment and rocks distributed depending on the region's geological and geographical features, so radionuclides have been present on the earth's surface [11][12][13][14][15]. Among the different isotopes of radon, the study was carried to determine the concentration of 222 Rn, which decays with a half-life of 3.82 days into many short-lived but highly alpha emitter daughter progenies like 218 Po and 214 Po [16][17][18][19][20].…”