{"title":"Effect of natural radioactivity along the southern coastal area of Tamil Nadu with statistical approach","authors":"A. Chandrasekaran, Ismail M. M. Rahman","doi":"10.1007/s10967-024-09735-9","DOIUrl":null,"url":null,"abstract":"<p>Natural radioactivity was assessed in sediment samples collected along southern coastline of Tamil Nadu. Average activity concentrations of <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K were determined (29 ± 3, 218 ± 6, and 80 ± 5 Bq kg<sup>–1</sup>, respectively). Calculated parameters included radium equivalent activity (347 ± 12 Bq kg<sup>–1</sup>), absorbed dose rate (273 ± 10 nGy h<sup>–1</sup>), annual effective dose rate (0.33 ± 0.01 mSv y<sup>–1</sup>), external hazard index (0.94 ± 0.03), annual gonadal dose equivalent (1026 ± 35 mSv y<sup>–1</sup>), and excess lifetime cancer risk (1.17 ± 0.03). Multivariate statistical analyses were employed to examine correlations among the radioactive variables. The presence of heavy minerals in the samples was confirmed using X-ray diffraction.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-09-13","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://doi.org/10.1007/s10967-024-09735-9","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
Abstract
Natural radioactivity was assessed in sediment samples collected along southern coastline of Tamil Nadu. Average activity concentrations of 238U, 232Th, and 40K were determined (29 ± 3, 218 ± 6, and 80 ± 5 Bq kg–1, respectively). Calculated parameters included radium equivalent activity (347 ± 12 Bq kg–1), absorbed dose rate (273 ± 10 nGy h–1), annual effective dose rate (0.33 ± 0.01 mSv y–1), external hazard index (0.94 ± 0.03), annual gonadal dose equivalent (1026 ± 35 mSv y–1), and excess lifetime cancer risk (1.17 ± 0.03). Multivariate statistical analyses were employed to examine correlations among the radioactive variables. The presence of heavy minerals in the samples was confirmed using X-ray diffraction.
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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