%0 Journal Article
%T Natural Radionuclides Content in Granites from Operational Quarry Sites
%A Jamiu Idowu Lawal
%J Detection
%P 1-15
%@ 2331-2084
%D 2019
%I Scientific Research Publishing
%R 10.4236/detection.2019.71001
%X Natural radionuclides content in
granite from eight functional quarries in Osun State, Southwestern Nigeria w<span>as</span><span> assessed. Eighty
granite samples compris</span><span>e&nbsp;</span><span style=\"background-color:white;font-size:6.5pt;\">&amp;frac34&nbsp;</span><span>inches.&nbsp;<span style=\"font-size:8.66667px;white-space:normal;background-color:#FFFFFF;\">&amp;frac12&nbsp;</span></span><span><span>inch and stone-dust
were collected from Wolid, Slava, Ayofe, Espro, Ife/Modakeke, Krystal Vountein,
Clario and Omidiran quarries in the State. Measurement was done using a high
purity germanium (HPGe) detector. The statistical analysis was carried out
using Statistical Package for Social Sciences (SPSS) software to determine if
granite size has an impact on the activity concentrations. The results revealed
that the mean activity concentrations of </span><sup><span>238</span></sup><span>U (12.64 ¡À 1.89 Bq</span></span><span>¡¤</span><span><span>kg<span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><sup> -1</sup></span></span></span><sup><span></span></sup><span>) and </span><sup><span>232</span></sup><span>Th (16.93 ¡À 2.46 Bq</span></span><span>¡¤</span><span><span>kg<span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><sup> -1</sup></span></span></span><sup><span></span></sup><span>) were highest in&nbsp;<span style=\"font-size:8.66667px;white-space:normal;background-color:#FFFFFF;\">&amp;frac34&nbsp;</span></span></span><span>inch granite
and lowest in stone-dust (5.01 ¡À 0.77 and 8.97 ¡À 1.37 Bq</span><span>¡¤</span><span>kg<span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><sup> -1</sup></span><span style=\"font-size:13.3333px;\"> </span>respectively), whereas <sup><span>40</span></sup>K is highest in the <span style=\"font-size:8.66667px;white-space:normal;background-color:#FFFFFF;\">&amp;frac34&nbsp;</span></span><span>i</span><span>nches (266.19 ¡À 35.53
Bq</span><span>¡¤</span><span><span>kg<span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><sup> -1</sup></span></span><span>) and lowest in&nbsp;<span style=\"font-size:8.66667px;white-space:normal;background-color:#FFFFFF;\">&amp;frac12</span></span></span><span>&nbsp;inches
(151.85 ¡À 25.09 Bq</span><span>¡¤</span><span><span>kg<span style=\"font-size:12.0pt;font-family:\" color:#004080;\"=\"\"><sup> -1</sup></span></span><span>) granite. Espro has the highest (23.75 ¡À 3.74
%K Activity Concentration
%K Radionuclides
%K Granite
%K Quarries
%K Radiological Parameters
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=95461