Title of article :
Natural gamma radiation level detection in agriculture soil after Aila disaster and comparison with deep soil gamma activity in a specific area of Sundarban region, Satkhira, Banglsdesh
Author/Authors :
Arafin, Sk.A.K. Department of Natural Sciences - Faculty of Science and Information Technology - Daffodil International University, Sukrabad, Dhaka-1207, Bangladesh , El-Taher, A. Department of Physics, Al-Azhar University - Faculty of Science, Assuit 71452, Egypt , Fazlul Hoque, A.K.M. Office of the Registrar - Daffodil International University, Sukrabad, Dhaka-1207, Bangladesh , Ashraful Hoque, M. Health Physics Division - Atomic Energy Centre, Dhaka, Bangladesh , Ferdous, J. Health Physics Division - Atomic Energy Centre, Dhaka, Bangladesh , Joynal Abedin, M. Accelerator Facilities Division - Atomic Energy Centre, Dhaka, Bangladesh
Abstract :
Background: The present work was conducted on some soil samples collected from Shamnagar upazila of Satkhira district of south-west part of world largest mangrove forest Sundarban Rezion, Bangladesh which were affected by natural disaster cyclone Aila. Materials and Methods: The soil samples were analyzed to determine terrestrial γ-ray activity using HPGe γ-ray spectrometry. The measurements conducted in the current study showed that primordial radionuclides namely the 238U and 232Th and 40K are contained in all the soil samples. Results and Discussion: The obtained results of the average activity concentrations of 238U, 232Th and 40K were found to be within the range of the world average of 17-60, 11-64, 140-850 Bq.kg-1 reported by UNSCEAR. The radiation dose is below the permissible limit of 1mSvy-1 recommended by IAEA (2007). No peak of 137Cs from the decay activity was found in the spectrum in the present work. Conclusion: The present work will be useful in providing environmental monitoring data base of those particular areas.
Keywords :
Disaster , Aila , health , natural radiation
