饮用水，发射和呼气评估的222222和220RN水平以及poli-Cameroon U含有的健康含义
222Rn and 220Rn levels in drinking water, emanation, and exhalation assessment, and the related health implications in the U-bearing area of Poli-Cameroon
影响因子:3.80000
分区:环境科学与生态学4区 / 水资源3区 工程：环境4区 环境科学4区 公共卫生4区
发表日期:2024 Jul 31
作者:
Cebastien Joel Guembou Shouop, Jean Felix Beyala Ateba, Josue Maya, Stanislas Mvondo, Augustin Simo, Maurice Ndontchueng Moyo
摘要
ra的固有放射性通过摄入和吸入其放射性同位素2222rn（ra）和220rn（thoron）从水源中摄入和吸入222RN（thoron），从而给人类带来了潜在的暴露风险。最近已经进行了研究，以评估由于对人类健康的有害影响，因此在不同环境基质（例如水，空气和土壤）中的浓度。作为非吸烟者中肺癌的主要原因，并在摄入后成为胃癌的公认贡献者，目前的研究旨在在喀麦隆Faro分区的紫poli区域初步评估ra和Thoron水平，以其重要的U- deposits而闻名。评估包括在饮用水，发射和呼气中测量220、2222222222222的浓度，特别着重于评估当地人群中不同年龄段的暴露。水中的ra/索隆水平及其相关的暴露和癌症风险数据表明没有立即的健康危害。但是，由于该地区丰富的U-Minerals，持续的监测和前瞻性措施被认为是必不可少的。散发测量结果显示出稀疏的分布数据，在萨拉基（Salaki）的奇异性，其中设备的记录值分别为8.14×1012 bqm-3和3.27×1012 bqm-3，分别为RADON和THORON。此外，ra/thoron从土壤到空气的转移系数指示低于统一的水平。虽然计算出的剂量表明与WHO和UNSCEAR指南保持一致的最低潜在风险，但预期获得的结果将显着促进建立饮用水，发射和呼气的国家标准水平的国家标准。此外，这些发现可以在监视ra/thoron水平以确保公共卫生安全方面发挥至关重要的作用。
Abstract
The inherent radioactivity of radon gas presents potential exposure risks to human beings through ingestion and inhalation of its radioisotopes 222Rn (radon) and 220Rn (thoron) from water sources. Recent studies have been conducted to assess radon concentrations in different environmental matrices such as water, air, and soil, due to their detrimental impact on human health. As the main cause of lung cancer in non-smokers and an acknowledged contributor to stomach cancer when ingested, the present study aimed to preliminarily assess radon and thoron levels in the Uranium bearing area of Poli in the Faro division of Cameroon, known for its significant U-deposits. The assessment included measuring 220, 222Rn concentrations in drinking water, emanation, and exhalation, with a specific focus on evaluating the exposure of different age groups within the local population. The radon/thoron levels in water and their related exposure and cancer risk data indicated no immediate health hazards. However, continuous monitoring and prospective measures are deemed essential due to the area's abundant U-minerals. The emanation measurements showed sparsely distributed data with a singularity at Salaki, where the equipment recorded values of 8.14 × 1012 Bqm-3 and 3.27 × 1012 Bqm-3 for radon and thoron, respectively. Moreover, radon/thoron transfer coefficients from the soil to the air indicated levels below unity. While the calculated doses suggest minimum potential risk in line with WHO and UNSCEAR guidelines, the obtained results are expected to significantly contribute to the establishment of national standards for radon levels in drinking water, emanation, and exhalation. Furthermore, these findings can play a crucial role in monitoring radon/thoron levels to ensure public health safety.