{"title":"Estimation of radiation exposure levels in terrestrial biota at Lake Oubeïra using the ERICA Tier 2 assessment tool.","authors":"Mohamed Ziouche, Djamel Taieb Errahmani, Mouad Boudria, Anisa Hammadi, Mustapha Maache, Nadia Rabia","doi":"10.1093/rpd/ncag023","DOIUrl":null,"url":null,"abstract":"<p><p>This study evaluates radionuclide contamination and radiological exposure in terrestrial biota within the Lake Oubeïra ecosystem, El Kala National Park, Algeria. The soil core sample was analysed using gamma spectrometry to quantify both natural and anthropogenic radionuclides. Using the ERICA Tier 2 assessment tool, total dose rates (TDRs) and risk quotients (RQs) were estimated for representative taxa including lichens, bryophytes, invertebrates, amphibians, and mammals. Results show that lichens and bryophytes experienced the highest exposures (TDR = 21.4 μGy h-1; RQ = 2.1), exceeding international ecological screening levels. Other taxa exhibited lower but non-negligible dose rates, indicating potential long-term ecological effects. The findings demonstrate that non-vascular plants serve as effective bioindicators of radiological stress and highlight the need for continued monitoring to preserve the ecological integrity of Lake Oubeïra.</p>","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"860-875"},"PeriodicalIF":0.8000,"publicationDate":"2026-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation protection dosimetry","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1093/rpd/ncag023","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
This study evaluates radionuclide contamination and radiological exposure in terrestrial biota within the Lake Oubeïra ecosystem, El Kala National Park, Algeria. The soil core sample was analysed using gamma spectrometry to quantify both natural and anthropogenic radionuclides. Using the ERICA Tier 2 assessment tool, total dose rates (TDRs) and risk quotients (RQs) were estimated for representative taxa including lichens, bryophytes, invertebrates, amphibians, and mammals. Results show that lichens and bryophytes experienced the highest exposures (TDR = 21.4 μGy h-1; RQ = 2.1), exceeding international ecological screening levels. Other taxa exhibited lower but non-negligible dose rates, indicating potential long-term ecological effects. The findings demonstrate that non-vascular plants serve as effective bioindicators of radiological stress and highlight the need for continued monitoring to preserve the ecological integrity of Lake Oubeïra.
期刊介绍：
Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.
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