Spatial risk analysis of lignite radioactivity concentrations with GIS and remote sensing (case study of Türkiye coalfields).

IF 1.8 3区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Applied Radiation and Isotopes Pub Date : 2025-10-01 DOI:10.1016/j.apradiso.2025.112218

C Bertan Güllüdağ, Ercüment Aksoy, Selin Karadirek, Süleyman Fatih Özmen

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Abstract

Radioactive elements in coals may have high concentrations and could reach higher radioactivity levels when the coals are burnt. In this study, the elemental geochemistry of lignites from Tekirdağ-Karaiğdemir, Manisa-Soma, Kütahya-Tunçbilek, Adıyaman-Gölbaşı lignite fields with high reserves was examined, radionuclide concentrations were determined, and radiological risk assessments were made. The calculated average ²²⁶Ra, ²³²Th and ⁴⁰K concentrations were analyzed for 48 samples taken from four sites and the measured U, Th, Pb and K concentrations were compared with world coals, Turkish coals and Upper Continental Crust (UCC). It was determined that the natural radioactivity concentration levels of the Manisa-Soma coalfield could pose a radiological risk. The high concentration of U (41.4 mg/kg) in Manisa-Soma coals and the high concentration of Th (14.9 mg/kg) and K (0.8 %) in Kütahya-Tunçbilek coals have a strong positive correlation with ash yield and their formation patterns suggest the origin of these elements are inorganic. In addition, the findings were analyzed in 7 different classes (Water, Trees, Flooded Vegetation, Crops, Built Area, Bare Ground, Rangeland) in terms of environmental risk factors using Geographical Information System (GIS) and Remote Sensing methods using Land Use Land Cover (LULC).

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基于GIS和遥感的褐煤放射性浓度空间风险分析（以 rkiye煤田为例）。

煤中的放射性元素可能浓度很高，当煤燃烧时可能达到更高的放射性水平。本研究对Tekirdağ-Karaiğdemir、Manisa-Soma、k tahya- tunbilek、Adıyaman-Gölbaşı高储量褐煤田的褐煤进行了元素地球化学检测，测定了放射性核素浓度，并进行了放射性风险评价。分析了4个地点48个样品的226Ra、232Th和40K的平均浓度，并与世界煤、土耳其煤和上大陆地壳（UCC）的U、Th、Pb和K浓度进行了比较。经确定，马尼萨-索马煤田的天然放射性浓度水平可能构成辐射危险。Manisa-Soma煤的高浓度U （41.4 mg/kg）和k tahya- tunbilek煤的高浓度Th （14.9 mg/kg）和K（0.8%）与灰分产率呈较强的正相关，它们的形成模式表明这些元素的来源是无机的。此外，利用地理信息系统（GIS）和利用土地利用覆盖（LULC）的遥感方法，对7个不同类别（水、树木、淹没植被、作物、建成区、裸地、牧场）的环境风险因素进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Radiation and Isotopes 工程技术-核科学技术

CiteScore

3.00

自引率

12.50%

发文量

406

审稿时长

13.5 months

期刊介绍： Applied Radiation and Isotopes provides a high quality medium for the publication of substantial, original and scientific and technological papers on the development and peaceful application of nuclear, radiation and radionuclide techniques in chemistry, physics, biochemistry, biology, medicine, security, engineering and in the earth, planetary and environmental sciences, all including dosimetry. Nuclear techniques are defined in the broadest sense and both experimental and theoretical papers are welcome. They include the development and use of α- and β-particles, X-rays and γ-rays, neutrons and other nuclear particles and radiations from all sources, including radionuclides, synchrotron sources, cyclotrons and reactors and from the natural environment. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. Papers dealing with radiation processing, i.e., where radiation is used to bring about a biological, chemical or physical change in a material, should be directed to our sister journal Radiation Physics and Chemistry.