Evaluation of environmental radioactivity impacts and its associated radiological hazards with monitoring of radon-222 in rock and sand samples collected from some mountains and valleys in Sinai Area, Egypt
{"title":"Evaluation of environmental radioactivity impacts and its associated radiological hazards with monitoring of radon-222 in rock and sand samples collected from some mountains and valleys in Sinai Area, Egypt","authors":"S. Fares","doi":"10.1504/IJLR.2017.10008581","DOIUrl":null,"url":null,"abstract":"Determination of the natural radionuclide contents of soil and rock samples collected from some mountains and valleys in Sinai, Egypt, has been carried out using gamma spectrometric techniques. The total average concentrations of radionuclides 226Ra, 238U, 232Th, and 40K were (51.37, 50.02, 19.34, and 286.66 Bq/kg), respectively. The total average absorbed dose rate in the study areas is found to be 47.08 nGy/h, whereas the indoor and outdoor annual effective dose equivalent has an average value of 0.23 and 0.06 mSv/y respectively. The range of 226Ra activity was found from 11.15 ± 0.96 Bq/kg to 135.85 ± 11.68 Bq/kg. The results of the present study are discussed and compared with internationally recommended values. The concentrations of radon gas in the air were determined as well as the activity concentrations of 222Rn in vegetables. In the present study some mathematical equations models are used to estimate the activity concentrations of 222Rn in the air.","PeriodicalId":14141,"journal":{"name":"International Journal of Low Radiation","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2017-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Low Radiation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/IJLR.2017.10008581","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Medicine","Score":null,"Total":0}
引用次数: 1
Abstract
Determination of the natural radionuclide contents of soil and rock samples collected from some mountains and valleys in Sinai, Egypt, has been carried out using gamma spectrometric techniques. The total average concentrations of radionuclides 226Ra, 238U, 232Th, and 40K were (51.37, 50.02, 19.34, and 286.66 Bq/kg), respectively. The total average absorbed dose rate in the study areas is found to be 47.08 nGy/h, whereas the indoor and outdoor annual effective dose equivalent has an average value of 0.23 and 0.06 mSv/y respectively. The range of 226Ra activity was found from 11.15 ± 0.96 Bq/kg to 135.85 ± 11.68 Bq/kg. The results of the present study are discussed and compared with internationally recommended values. The concentrations of radon gas in the air were determined as well as the activity concentrations of 222Rn in vegetables. In the present study some mathematical equations models are used to estimate the activity concentrations of 222Rn in the air.
期刊介绍：
The IJLR is a peer-reviewed journal dedicated to the publication of research articles, review papers and technical notes in all domains related to low-dose radiation, among which are the biological and health effects in humans and the biota, in vitro and in vivo research on low radiation effects, regulatory and policy aspects, risk estimation and public perception.
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