Results 201 to 210 of about 4,568,990 (248)
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Natural radionuclides in mineral waters
Science of The Total Environment, 1985Concentration levels of natural radionuclides in mineral waters have been studied in several European countries. In the Federal Republic of Germany in recent years a nationwide investigation was carried out by several institutions. The concentrations of 226Ra, uranium isotopes, 210Pb and 210Po found are similar to those in other European countries ...
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Illicit Trafficking of Natural Radionuclides
AIP Conference Proceedings, 2008Natural radionuclides have been subject to trafficking worldwide, involving natural uranium ore (U 238), processed uranium (yellow cake), low enriched uranium ( 20% U 235), radium (Ra 226), polonium (Po 210), and natural thorium ore (Th 232). An important prerequisite to successful illicit trafficking activities is access to a suitable logistical ...
Steinhäusler Friedrich +3 more
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Fractionation of some natural radionuclides in Albic Retisol
Chemosphere, 2021In the present work, the fractionation of heavy natural radionuclides was investigated in Albic Retisol in the Moscow region of Russia. Fractionation was performed using the Pavlotskaya method. 238U and 232Тh were measured via inductively coupled plasma mass spectrometry and 226Ra was measured using an alpha-radiometer that considered the decay of Ra ...
D V, Manakhov +4 more
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Natural radionuclides in groundwaters
Journal of Radioanalytical and Nuclear Chemistry Articles, 1992The234U and230Th radionuclides are highly retarded by factors of 104 to 105 in basalt groundwater (Hanford) and briny groundwaters from Texas, and geothermal brine from the Salton Sea Geothermal Field (SSGF). In basalt groundwaters (low ionic strength), Ra is highly sorbed, while in brines (high ionic strength), Ra is soluble.
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The effect of natural radionuclides on soil: Review
Open Access Research Journal of Multidisciplinary Studies, 2023People are affected by nature radiation in several various forms depending on elements of the present radioactive nature in any location; such researchers investigating natural environmental radiation and radionuclides checks are being conducted by background on the soil to detect ambient radioactivity.
null Rukia Jabar Dosh +2 more
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Sorption of radionuclides on natural materials
Journal of Radioanalytical and Nuclear Chemistry Articles, 1986Information about the sorption of radionuclides on natural materials used for cementation of liquid radioactive wastes (RAW) is important for predictions of migration rates of radionuclides in the products of fixation. Cementation process for conditioning liquid RAW uses, besides cement, materials which improve quality of products.
G. Guliš, J. Timuîák
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Natural radionuclides in volcanic activity
Applied Radiation and Isotopes, 2003Abstract Natural radionuclides of 222 Ra, 210 Pb and 212 Pb present in the magma are emitted during the eruption of volcanoes. Depletion of 222 Rn in pumices and in lava showed that significant amounts of 222 Rn were released from erupting magmas. Atmospheric 210 Pb originating from the 1991 eruption of Mt. Pinatubo was detected in Japan and in
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Behavior of natural radionuclides in wastewater treatment plants
Journal of Environmental Radioactivity, 201256 samples, including influent, primary effluent, secondary effluent and final effluent wastewater from two Spanish municipal wastewater treatment plants (WWTPs), were analyzed to assess both the occurrence and behavior of natural radioactivity during 12 sampling campaigns carried out over the period 2007-2010.
A, Camacho +7 more
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Natural radionuclide distribution in soils of Gudalore, India
Applied Radiation and Isotopes, 2000The concentration of primordial radionuclides in soil samples of Gudalore Taluk in the Udagamandalam district has been measured from the gamma ray spectrum of the soil. The mean activities of 232Th, 238U and 40K are 75.3 +/- 44.1, 37.7 +/- 10.1 and 195.2 +/- 85.1 Bq kg-1 dry weight, respectively.
S, Selvasekarapandian +5 more
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Natural radionuclides in human hair
2011Naturally occurring radionuclides of terrestrial origin, such as 238U, 235U, 226Ra, 210Po and 210Pb, are present to various degrees in all environmental media, including the human body. Like other pollutants, many natural radioactive substances also accumulate in hair. In this article, the transfer to human scalp hair and typical concentrations in hair
Maarit Muikku, Weibo Li
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