Vol. 9 No. 11 (2023)
Articles

MEASUREMENT OF PRIMORDIAL RADIOACTIVITY FOR ASSESSMENT OF RADIOLOGICAL HAZARDS IN AGRICULTURAL SOIL IN BICHI AND NEIGHBORING COMMUNITIES IN KANO STATE, NIGERIA.

Olabimtan, S. O.
Federal College of Education (Technical), Bichi, Kano State. Nigeria.  +2348028414789, gbengaolabimtan@yahoo.com
Anwo, A. O.
Federal College of Education (Technical), Bichi, Kano State. Nigeria.

Published 2023-11-18

Keywords

  • Primordial radioactivity,
  • Radiological hazards,
  • Agricultural soil,
  • Bichi,
  • Kano State

How to Cite

Olabimtan, S. O., & Anwo, A. O. (2023). MEASUREMENT OF PRIMORDIAL RADIOACTIVITY FOR ASSESSMENT OF RADIOLOGICAL HAZARDS IN AGRICULTURAL SOIL IN BICHI AND NEIGHBORING COMMUNITIES IN KANO STATE, NIGERIA. International Journal of Advanced Academic Research, 9(11), 217-230. https://www.openjournals.ijaar.org/index.php/ijaar/article/view/326

How to Cite

Olabimtan, S. O., & Anwo, A. O. (2023). MEASUREMENT OF PRIMORDIAL RADIOACTIVITY FOR ASSESSMENT OF RADIOLOGICAL HAZARDS IN AGRICULTURAL SOIL IN BICHI AND NEIGHBORING COMMUNITIES IN KANO STATE, NIGERIA. International Journal of Advanced Academic Research, 9(11), 217-230. https://www.openjournals.ijaar.org/index.php/ijaar/article/view/326

Abstract

Farming, and other human activities, can enhance natural radioactivity in the soil. This has made measurements and monitoring of natural radionuclides in our farmlands and environment a necessity. 15 soil samples were collected from farmlands in Bichi town and four (4) neighboring communities: Danzabua; Chiromawa; Dan-Gwarzo and Tabari, for measurement of primordial radionuclides and assessment of radiological hazards using gamma-ray spectrometer coupled with Sodium-Iodide Scintillation detector. The activity concentrations, in BqKg-1, of 40K, 238U and 232Th in the study area ranged from: 412.34 – 749.46 (mean: 554.97 ± 27.77), 10.70 – 31.79 (mean:18.65 ± 2.00) and 6.50 – 18.00 (mean: 11.22 ± 0.65) respectively. The higher concentration of 40K in the study area is due to the fact that 40K is a macronutrient and the most abundant radionuclide in nature. The Radium equivalent activity, Raeq, external hazard index, Hex, internal hazard index, Hin and gamma index Iγ of the farm soils in the study area ranged from: 63.18 – 95.42 (mean:77.43 BqKg-1), 0.17 – 0.26 (mean:0.21), 0.21 – 0.32 (mean:0.26) and 0.25 – 0.38 (mean:0.30) accordingly. All the estimated values are less than their corresponding world average values. Also, the absorbed dose rate, D, annual gonad equivalent dose, AGED, annual effective dose rate, AEDR and excess lifetime cancer risk, ELCR, obtained in the study ranged from: 31.21 – 47.76 (mean:38.54 nGy.h-1), 225.56 – 346.18 (mean:278.80 mSv.y-1), 0.038 – 0.059 (mean:0.047 mSv.y-1) and 0.087 x 10-3 – 0.133 x10-3 (mean:0.108 x 10-3). The average values of D, AGED, AEDR and ELCR obtained in the study area were equally less than their corresponding world average values. Therefore, the soils in the study area posed no immediate threat or hazard to lives of farmers, population and consumers of plants grown in the area.

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