Radiological profle of ²²⁶Ra, ²³²Th, and ⁴⁰K in agricultural area around Blue Nile State, Sudan

• Autorzy: Fadol Nooreldin , Idriss Hajo

Identyfikatory

DOI

10.1007/s11600-022-00835-2

• Języki publikacji: EN

Abstrakty

EN

This study aims to build a radiation map and evaluate the radiological risk for humans and non-humans from soils in agricultural areas surrounding Blue Nile State, Sudan. The ²²⁶Ra, ²³²Th, and ⁴⁰K radioactivity of soil samples were measured using gamma-ray systems (HPGe). The average values for ²²⁶Ra, ²³²Th, and ⁴⁰K were 24.2±7.3 Bqkg⁻¹, 31.0±8.2 Bqkg⁻¹, and 376.4±174.0 Bqkg⁻¹, respectively. The radioactivity level was lower than the global averages of 226Ra (35 Bqkg⁻¹), 232Th (45 Bqkg⁻¹), and ⁴⁰K (420 Bqkg⁻¹). Human radiological risk exhibited that the average values of the dose rate and annual effective dose rates were 32.00 nGyh⁻¹ and 40.08 µSvy⁻¹, respectively. The average dose rate and annual effective dose rates were lower than the worldwide average absorbed dose rate of 60 nGyh⁻¹, and ICRP recommended reference of 1.0 mSvy⁻¹. Therefore, the radiological effects of ²²⁶Ra, ²³²Th, and ⁴⁰K in the study area are negligible. On the other hand, the radiological risk for non-human organisms indicates that the projected total dose rate per organism in birds was lower than the background dose rates, which is in accordance with the background dose rates. However, the overall dose rate for amphibian, reptile, and mammal-large, mammal-small burrowing exceeds the background exposure rate.

Słowa kluczowe

EN

natural radioactivity; risk; dose; GIS; ERICA; gamma spectrometry

PL

promieniotwórczość naturalna; ryzyko; dawka; GIS; ERICA; spektrometria gamma

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2022
• Tom: Vol. 70, no 4
• Strony: 1737--1743
• Opis fizyczny: Bibliogr. 34 poz.

Twórcy

autor

Fadol Nooreldin

• Department of Physics, Faculty of Education, Blue Nile University, El Damazin, Sudan

autor

Idriss Hajo

• Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, Saudi Arabia

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