{"title":"泰米尔纳德邦Cuddalore地区煤基火力发电厂区域天然放射性评估","authors":"G. Poongodi, A. Chandrasekaran","doi":"10.1007/s10967-024-09931-7","DOIUrl":null,"url":null,"abstract":"<div><p>In this study, activity of <sup>238</sup>U,<sup>232</sup>Th, and <sup>40</sup>K was determined in coal, bottom, and fly ash samples collected from in and around the thermal power plant area of Cuddalore district, Tamil Nadu. The mean activity concentration for <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K in coal were (45 ± 0.4, 28 ± 0.2, and 145 ± 0.5 Bq kg<sup>−1</sup>) and ash samples were (103 ± 0.5, 31 ± 0.5, and 334 ± 0.6 Bq kg<sup>−1</sup>), respectively. To assess the radiation hazards, calculated radiological parameters are compared with permissible limits. This result indicates that the indoor (1.15 × 10<sup>–3</sup> mSv y<sup>−1</sup>) and outdoor (0.56 × 10<sup>–3</sup> mSv y<sup>−1</sup>) excess lifetime cancer risk is slightly greater than the permissible limit and cluster analysis was performed to understand the relation between the variables.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":"334 2","pages":"1299 - 1310"},"PeriodicalIF":1.5000,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Assessment of natural radioactivity in coal-based thermal power plant area in Cuddalore district, Tamil Nadu\",\"authors\":\"G. Poongodi, A. Chandrasekaran\",\"doi\":\"10.1007/s10967-024-09931-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this study, activity of <sup>238</sup>U,<sup>232</sup>Th, and <sup>40</sup>K was determined in coal, bottom, and fly ash samples collected from in and around the thermal power plant area of Cuddalore district, Tamil Nadu. The mean activity concentration for <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K in coal were (45 ± 0.4, 28 ± 0.2, and 145 ± 0.5 Bq kg<sup>−1</sup>) and ash samples were (103 ± 0.5, 31 ± 0.5, and 334 ± 0.6 Bq kg<sup>−1</sup>), respectively. To assess the radiation hazards, calculated radiological parameters are compared with permissible limits. This result indicates that the indoor (1.15 × 10<sup>–3</sup> mSv y<sup>−1</sup>) and outdoor (0.56 × 10<sup>–3</sup> mSv y<sup>−1</sup>) excess lifetime cancer risk is slightly greater than the permissible limit and cluster analysis was performed to understand the relation between the variables.</p></div>\",\"PeriodicalId\":661,\"journal\":{\"name\":\"Journal of Radioanalytical and Nuclear Chemistry\",\"volume\":\"334 2\",\"pages\":\"1299 - 1310\"},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2025-01-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Radioanalytical and Nuclear Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10967-024-09931-7\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radioanalytical and Nuclear Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10967-024-09931-7","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
摘要
本研究对泰米尔纳德邦Cuddalore地区热电厂区域内及周边的煤、底泥和飞灰样品中238U、232Th和40K的活性进行了测定。煤中238U、232Th和40K的平均活性浓度分别为（45±0.4、28±0.2和145±0.5 Bq kg - 1），灰分样品中238U、232Th和40K的平均活性浓度分别为（103±0.5、31±0.5和334±0.6 Bq kg - 1）。为了评估辐射危害，将计算出的辐射参数与允许限值进行比较。结果表明，室内（1.15 × 10-3 mSv y - 1）和室外（0.56 × 10-3 mSv y - 1）的过量终生致癌风险略大于允许限值，并进行聚类分析以了解变量之间的关系。
Assessment of natural radioactivity in coal-based thermal power plant area in Cuddalore district, Tamil Nadu
In this study, activity of 238U,232Th, and 40K was determined in coal, bottom, and fly ash samples collected from in and around the thermal power plant area of Cuddalore district, Tamil Nadu. The mean activity concentration for 238U, 232Th, and 40K in coal were (45 ± 0.4, 28 ± 0.2, and 145 ± 0.5 Bq kg−1) and ash samples were (103 ± 0.5, 31 ± 0.5, and 334 ± 0.6 Bq kg−1), respectively. To assess the radiation hazards, calculated radiological parameters are compared with permissible limits. This result indicates that the indoor (1.15 × 10–3 mSv y−1) and outdoor (0.56 × 10–3 mSv y−1) excess lifetime cancer risk is slightly greater than the permissible limit and cluster analysis was performed to understand the relation between the variables.
期刊介绍：
An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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