Postulated nuclear power plant accident in the Po valley (Italy) and application of the ICRP publication 146 recommendations

IF 2.8 3区物理与天体物理 Q3 CHEMISTRY, PHYSICAL

Radiation Physics and Chemistry Pub Date : 2025-01-02 DOI:10.1016/j.radphyschem.2024.112490

Sergio Biancotto, Marco D'Arienzo

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Abstract

A large release of radioactive material, consequence of a supposed nuclear power plant (NPP) accident, is simulated in the densely populated and productive area of the Italian Po Valley, using wind speed and atmospheric stability conditions characteristic of the region. The first step of the analysis is the evaluation of the dose received by the public during the plume passage through the HotSpot code. The second step is the calculation of dose in the years following the accident through the RESRAD-ONSITE code, considering soil and food-chain contamination. The third step is the dose reduction obtained with protective actions, mainly iodine prophylaxis and shelter in place. Recommendations contained in the International Commission on Radiological Protection (ICRP) Publication 146 are applied, with the goal of maintaining the public dose below the ICRP recommended Reference Levels. The influence of the height of the release is also analyzed. Without implementing protective measures, the public may be exposed to a dose of up to 2.9 × 102 mSv, although this is confined to a fairly restricted area. However, the dose can be greatly reduced by appropriate and preplanned protective actions. The use of ICRP Reference Levels is of overwhelming importance in guiding protective actions and helping authorities to make balanced decisions.

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波谷（意大利）核电厂假想事故及ICRP 146号出版物建议的应用

利用意大利波谷地区的风速和大气稳定性特征，模拟了一场假定的核电站事故所导致的放射性物质的大量释放。分析的第一步是评估公众在烟羽通过热点代码时所受到的剂量。第二步是在考虑土壤和食物链污染的情况下，根据RESRAD-ONSITE规范计算事故发生后数年内的剂量。第三步是通过保护措施减少剂量，主要是碘预防和适当的庇护所。国际放射防护委员会（ICRP）第146号出版物中所载的建议得到了应用，其目标是将公众剂量维持在ICRP建议的参考水平以下。分析了释放高度的影响。如果不采取保护措施，公众可能会接触到2.9 × 102毫西弗的剂量，尽管这仅限于相当有限的区域。然而，通过适当和预先计划的保护行动，可以大大减少剂量。ICRP参考水平的使用在指导保护行动和帮助当局做出平衡决策方面具有极其重要的意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation Physics and Chemistry 化学-核科学技术

CiteScore

5.60

自引率

17.20%

发文量

574

审稿时长

12 weeks

期刊介绍： Radiation Physics and Chemistry is a multidisciplinary journal that provides a medium for publication of substantial and original papers, reviews, and short communications which focus on research and developments involving ionizing radiation in radiation physics, radiation chemistry and radiation processing. The journal aims to publish papers with significance to an international audience, containing substantial novelty and scientific impact. The Editors reserve the rights to reject, with or without external review, papers that do not meet these criteria. This could include papers that are very similar to previous publications, only with changed target substrates, employed materials, analyzed sites and experimental methods, report results without presenting new insights and/or hypothesis testing, or do not focus on the radiation effects.