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Showing 1 to 3 of 3 for “"naturally occurring radioactive materials"”.
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Radioactivity of Fossil Fuel Waste Products and Associated Environmental Implications
… production can redistribute and concentrate naturally occurring radioactive materials (NORM), particularly from the uranium (238U t1/2=4.5 x 109 yr) and thorium (232Th t1/2=1.4 x 1010 yr) decay series, posing potential human and environmental health risks if not managed properly. In …
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In-situ gamma-ray mapping of environmental radioactivity at Ithemba Labs and associated risk assessment
… concentration results that were obtained for the naturally occurring radioactive materials (NORM) [from both HPGe and MEDUSA data from off-road /TL site sections] have the ranges 7.8 - 39.0, 5.9 - 21.4? and 29.8 - 63.3 Bq.kg"1 for 238U, 2j2Th, and "^K, respectively. The absorbed and effective …
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Towards establishing a fit-for-purpose regulatory framework for radiation protection in Western Australia's mining industry: Evaluating mine worker exposures to naturally occurring radionuclides
… development, and high levels of activity are occurring in the state’s nascent critical minerals sector, with 168 WA-based companies pursuing rare earths-bearing minerals, 51 of which are actively drilling on their tenements. WA’s mineral deposits typically contain levels of the naturally …