苏丹西北部金矿矿区职业性NORM暴露。

IF 1.1 4区环境科学与生态学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Isotopes in Environmental and Health Studies Pub Date : 2025-03-25 DOI:10.1080/10256016.2025.2482799

Minas E Ahmed, Modou Niang, Hamid Bounouira, Zobair El Afia, Mohamed Adam Abbo, Ndeye Arame Boye Faye

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引用次数: 0

摘要

本研究利用伽马射线能谱法对苏丹西北部某金矿土壤中天然存在的放射性物质（NORM）的分布和放射性危害指数进行了评价。土壤样品中226Ra、232Th和40K的活性浓度分别为2.54±1.70 ~ 50.67±3.10 Bq/kg、10.28±4.20 ~ 39.91±2.10 Bq/kg和274.64±0.98 ~ 1625.85±54.40 Bq/kg。40K的平均活性浓度高于世界平均水平。年有效剂量为0.05毫西弗/年，低于国际放射防护委员会（ICRP）职业照射指南建议的20毫西弗/年。

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Occupational exposure to NORM in gold mining areas of northwestern Sudan.

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.

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来源期刊

Isotopes in Environmental and Health Studies 环境科学-环境科学

CiteScore

2.80

自引率

7.70%

发文量

审稿时长

3.0 months

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