Levels of natural radionuclides in some Nigerian cereals and tubers.
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.
Arogunjo
A M
AM
Department of Physics, Federal University of Technology, P.M.B 704, Akure, Ondo State, Nigeria. arogmuyi@yahoo.com
Ofuga
E E
EE
Afolabi
M A
MA
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*
D005308:Fertilizers; D011197:Potassium Radioisotopes; D014501:Uranium; D013910:Thorium