Minas E Ahmed, Modou Niang, Hamid Bounouira, Zobair El Afia, Mohamed Adam Abbo, Ndeye Arame Boye Faye
{"title":"Occupational exposure to NORM in gold mining areas of northwestern Sudan.","authors":"Minas E Ahmed, Modou Niang, Hamid Bounouira, Zobair El Afia, Mohamed Adam Abbo, Ndeye Arame Boye Faye","doi":"10.1080/10256016.2025.2482799","DOIUrl":null,"url":null,"abstract":"<p><p>This study was carried out to evaluate the distribution of naturally occurring radioactive materials (NORM) and radiological hazard indices in the soil of a gold mine in northwestern Sudan using gamma ray spectrometry. The activity concentrations of <sup>226</sup>Ra, <sup>232</sup>Th and <sup>40</sup>K in the soil samples varies from 2.54 ± 1.70 to 50.67 ± 3.10 Bq/kg, 10.28 ± 4.20 to 39.91 ± 2.10 Bq/kg and 274.64 ± 0.98 to 1625.85 ± 54.40 Bq/kg, respectively. The average activity concentration of <sup>40</sup>K were found to be above the world average. The annual effective dose is 0.05 mSv/year which is lower than the 20 mSv/year recommended by the International Commission on Radiological Protection (ICRP) guidelines for occupational exposure.</p>","PeriodicalId":14597,"journal":{"name":"Isotopes in Environmental and Health Studies","volume":" ","pages":"264-272"},"PeriodicalIF":1.4000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Isotopes in Environmental and Health Studies","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1080/10256016.2025.2482799","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/25 0:00:00","PubModel":"Epub","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 0
Abstract
This study was carried out to evaluate the distribution of naturally occurring radioactive materials (NORM) and radiological hazard indices in the soil of a gold mine in northwestern Sudan using gamma ray spectrometry. The activity concentrations of 226Ra, 232Th and 40K in the soil samples varies from 2.54 ± 1.70 to 50.67 ± 3.10 Bq/kg, 10.28 ± 4.20 to 39.91 ± 2.10 Bq/kg and 274.64 ± 0.98 to 1625.85 ± 54.40 Bq/kg, respectively. The average activity concentration of 40K were found to be above the world average. The annual effective dose is 0.05 mSv/year which is lower than the 20 mSv/year recommended by the International Commission on Radiological Protection (ICRP) guidelines for occupational exposure.
期刊介绍：
Isotopes in Environmental and Health Studies provides a unique platform for stable isotope studies in geological and life sciences, with emphasis on ecology. The international journal publishes original research papers, review articles, short communications, and book reviews relating to the following topics:
-variations in natural isotope abundance (isotope ecology, isotope biochemistry, isotope hydrology, isotope geology)
-stable isotope tracer techniques to follow the fate of certain substances in soil, water, plants, animals and in the human body
-isotope effects and tracer theory linked with mathematical modelling
-isotope measurement methods and equipment with respect to environmental and health research
-diagnostic stable isotope application in medicine and in health studies
-environmental sources of ionizing radiation and its effects on all living matter
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