L.  Bamidele, 
    Measurement of Ionizing Radiation Level in an High Altitude Town of Imesi-Ile, Osun State, Southwestern, Nigeria,
    Environmental Research Journal,
    Volume 7,Issue 4,
    2013,
    Pages 79-82,
    ISSN 1994-5396,
    erj.2013.79.82,
    (https://makhillpublications.co/view-article.php?doi=erj.2013.79.82)
    Abstract: The present research attempts to measure background ionizing 
  radiation in an high altitude town of Imesi-Ile, Osun State, Southwestern, Nigeria. 
  The measurements were carried out in 20 locations within the town using portable 
  Digilert 50 Nuclear Radiation monitor. The absorbed dose rates obtained ranges 
  from 26.6-48.6 nGy h<SUP>-1</SUP> with a mean value 37.19 nGy h<SUP>-1</SUP>. 
  The estimated annual effective dose is 0.46 mSv. This value is less than annual 
  dose unit of 1 mSv recommended by UNSCEA for normal environment.
    Keywords: Ionizing radiation;absorbed dose;environment;effective dose;value