title: Levels of natural radionuclides in some Nigerian cereals and tubers.
abstract: The activities of radionuclides in the two major groups of foodstuff widely consumed in Nigeria have been determined. The 40K concentration range from 9.9+/-3.6 Bq kg-1 to 298+/-14 Bq kg-1 (av. 130+/-8.12 Bq kg-1). (238)U concentration range from 1.47+/-0.91 Bq kg-1 to 39.5+/-9.9 Bq kg-1 (av. 11.5+/-3.86 Bq kg-1), and 232Th range from 3.50+/-1.85 Bq kg-1 to 10.5+/-2.13 Bq kg-1 (av. 6.78+/-2.13 Bq kg-1). 137Cs was not detected in any of the foodstuffs analysed.
authors.affiliation: Department of Physics, Federal University of Technology, P.M.B 704, Akure, Ondo State, Nigeria. arogmuyi@yahoo.com
authors.forename: A M
authors.initials: AM
authors.lastname: Arogunjo
authors.forename: E E
authors.initials: EE
authors.lastname: Ofuga
authors.forename: M A
authors.initials: MA
authors.lastname: Afolabi
mesh_terms: D004784:Environmental Monitoring; D007887:Fabaceae / Q000737:chemistry; D005308:Fertilizers; D005507:Food Contamination, Radioactive / Q000032:analysis*; D009549:Nigeria; D012275:Oryza / Q000737:chemistry; D035281:Plant Tubers / Q000737:chemistry; D011197:Potassium Radioisotopes / Q000032:analysis*; D013051:Spectrometry, Gamma; D013910:Thorium / Q000032:analysis*; D013997:Time Factors; D014501:Uranium / Q000032:analysis*
chemical_list: D005308:Fertilizers; D011197:Potassium Radioisotopes; D014501:Uranium; D013910:Thorium