The activity concentrations and radiological hazard parameters (equivalent activity of radium Raₑq, absorbed dose rate D, annual effective dose AEDE, external and internal hazard indices H, Gamma radiation representative level index I_γ, Alpha radioactivity level index (I_α), and excess lifetime cancer risk ELCR) of the terrestrial Naturally Occurring Radioactive Materials NORM such as (_ ²26) Ra, (_ ²32) Th and (_ ⁴0) K were assessed in soil samples collected from Ain Zalah oil field, Nineveh, Iraq, using HPGe detector. The analysis of NORM gives obtainable data for rules about radiation protection. The results were depicted in graphical and tabular formats and subsequently compared to the established international permissible thresholds set by UNSCEAR. Consequently, it is possible that the petroleum extraction activities in the studied area could result in some radiological risks for both the workers and the surrounding environment due to the elevated activity concentration of radionuclides. ies in the studied area could result in some radiological risks for both the workers and the surrounding environment due to the elevated activity concentration of radionuclides.
Sana Fathe Mahammod (2026) studied this question.