Radiation Protection and Environment

ORIGINAL ARTICLE
Year
: 2019  |  Volume : 42  |  Issue : 4  |  Page : 128--137

Environmental radioactivity levels in agricultural soil and wheat grains collected from wheat-farming lands of Koya district, Kurdistan region-Iraq


Najeba Farhad Salih, Zakariya Adel Hussein, Shalaw Zrar Sedeeq 
 Department of Physics, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region, Iraq

Correspondence Address:
Mr. Shalaw Zrar Sedeeq
Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region
Iraq

The purpose of this study is to determine the activity concentration levels of radionuclides of226Ra,232Th,40K, and137Cs in soil and wheat grain samples. A total of 72 samples of soil and wheat grains were collected in the study area. Measurements were performed using a gamma-ray spectroscopic system based on high purity germanium detector. The average activity concentrations of226Ra,232Th, and40K in soil samples were found to be 14.7 ± 0.2 Bq/kg, 19.9 ± 0.5 Bq/kg, and 329 ± 5.4 Bq/kg, respectively, and for the measured wheat grain samples their values were found to be 0.4 ± 0.09 Bq/kg for226Ra, 0.36 ± 0.1 Bq/kg for228Ra, and 109.2 ± 2.2 Bq/kg for40K. The calculated mean values of radium equivalent activity Raeq, outdoor absorbed dose rate Dout, and outdoor annual effective dose rate of the soil samples were found to be 68.55 Bq/kg, 32.5 nGy/h, and 0.039 mSv/year, respectively. Moreover, the radionuclide transfer factor from soil-to-wheat grains of naturally occurring radionuclides were found in this order40K > 226Ra > 228Ra.


How to cite this article:
Salih NF, Hussein ZA, Sedeeq SZ. Environmental radioactivity levels in agricultural soil and wheat grains collected from wheat-farming lands of Koya district, Kurdistan region-Iraq.Radiat Prot Environ 2019;42:128-137


How to cite this URL:
Salih NF, Hussein ZA, Sedeeq SZ. Environmental radioactivity levels in agricultural soil and wheat grains collected from wheat-farming lands of Koya district, Kurdistan region-Iraq. Radiat Prot Environ [serial online] 2019 [cited 2020 Feb 20 ];42:128-137
Available from: http://www.rpe.org.in/article.asp?issn=0972-0464;year=2019;volume=42;issue=4;spage=128;epage=137;aulast=Salih;type=0