Distribution of Radionuclide Concentration with Proximity to the Lagoon in Lagos State, Southwestern Nigeria
Abstract
The radioactivity of Lagos State in the Southwestern Nigeria was determined using an HpGe based, low level passive gamma-counting system. The main radinouclides analyzed in the samples were the progenies of 238U and 232Th. The other two isotopes were the naturally occurring 40K and the anthropogenic 137Cs. The results of the study showed that the average specific activity concentration of 238U, 232Th and 40K have consistent values with published data for many other countries in the world. The presence of the fission product 137Cs could be traced to the fallout of the nuclear tests in the Sahara desert and probably, some effects of the more recent nuclear reactor accident at Chernobyl in 1986.
Keyword: radionuclide, concentration, radioactivity, contamination, soil
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ISSN (Paper)2224-719X ISSN (Online)2225-0638
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