Authors
M H Nassef, M M T Qutub, O A Fallatah, Jaber Alyami, Hattan D Natto, Ahmad Yahay
Published in
Environmental monitoring and assessment. Volume 197. Issue 11. Pages 1181. Oct 07, 2025. Epub Oct 07, 2025.
Abstract
This study measures the radioactivity concentration in phosphate ore and final product samples, as well as the radiological risk from the mining area that has an impact on the environment in the Al-Jalamid mining region of Saudi Arabia. The contents of 226Ra (238U), 232Th, 40 K, and 238U/226Ra ratio were measured using gamma-ray spectrometry. The results show that the concentrations of 226Ra (238U), 232Th, and 40 K in the ore ranged from 62.3 to 333.5 with an average value of 253.6, 0.53 to 2.37 with an average value of 1.54, 3.2 to 8.1 with an average value of 4.58 Bq kg-1, respectively. The results for the fertilizer samples show that the activity concentrations for 226Ra (238U), 232Th, and 40 K range from 2.32 to 2.62 with an average value of 2.48, 0.54 to 0.73 with an average value of 0.66, 9.41 to 10.98 with an average value of 10.36 Bq kg-1, respectively. A good correlation was found between 238U and 226Ra. The value of the radium equivalent ranged from 63.40 to 337.48 with an average value of 255.73 Bq kg-1. The gamma radiation hazard indices of the radium equivalent activity, external and internal indices, and annual effective dose due to the presence of these radionuclides in the studied samples were assessed. The results were compared with those from the world average value.
PMID:
41055754
Bibliographic data and abstract were imported from PubMed on 07 Oct 2025.
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