INTERNATIONAL JOURNAL OF SCIENTIFIC DEVELOPMENT AND RESEARCH International Peer Reviewed & Refereed Journals, Open Access Journal ISSN Approved Journal No: 2455-2631 | Impact factor: 8.15 | ESTD Year: 2016
open access , Peer-reviewed, and Refereed Journals, Impact factor 8.15
Geostatistical investigation and ambient radiation mapping of Akure north and south local government areas of Ondo state, Nigeria.
Authors Name:
Dinyo Enoch Omosehinmi
, Prof. Adeseye Muyiwa Arogunjo
Unique Id:
IJSDR1612025
Published In:
Volume 1 Issue 12, December-2016
Abstract:
The need for geostatistical estimation and mapping of ambient radiation prevalence in Akure North and South Local Government Areas of Ondo State, Nigeria prompted dose rate assessment at 166 selected sample locations in these areas. Global Positioning System (GPS) and Geiger-Muller Counter (GMC) were respectively used for location identification and dose rates measurement within an interval of 1-1.5km. The dose rates were measured at 1m above the ground level. The values of Dose Rate (DR) in air, and Annual Dose Rate (ADR) in air ranged from 0.16±0.01 to 0.37±0.04 μSν⁄h and 1.40±0.09 to 3.24±0.35 mSν⁄y respectively. The mean dose rate and mean annual dose rate in air are 0.26±0.03 μSν⁄h and 2.28±0.26 mSν⁄y. The measured DR and calculated ADR was processed in ArcGIS and Surfer, using Inverse Distance Weighting (IDW) and Kriging interpolation to produce delineation maps of ambient radiation, in 2D and 3D. Only about 1% of the variation in dose rate is explained by spatial data- elevation, latitude and longitude, which suggest very weak correlation between DR and spatial data(s). All dose rates are within the limit of internationally accepted Ambient Radiation levels; it poses no health effect on the general public.
"Geostatistical investigation and ambient radiation mapping of Akure north and south local government areas of Ondo state, Nigeria.", International Journal of Science & Engineering Development Research (www.ijsdr.org), ISSN:2455-2631, Vol.1, Issue 12, page no.122 - 136, December-2016, Available :http://www.ijsdr.org/papers/IJSDR1612025.pdf
Downloads:
000336256
Publication Details:
Published Paper ID: IJSDR1612025
Registration ID:160974
Published In: Volume 1 Issue 12, December-2016
DOI (Digital Object Identifier):
Page No: 122 - 136
Publisher: IJSDR | www.ijsdr.org
ISSN Number: 2455-2631
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