Conveners
Radon in civil engineering
- Jens Jensen (Swedish Radiation Safety Authority)
- Katarzyna Wołoszczuk (Central Laboratory for Radiological Protection)
Description
Focused on:
• Case studies incl. optimisation of radon remedial actions and preventive measures.
Other relevant topics: General standards and methods of remedial measures; preventive measures; efficiency of used remedial measures; modelling of radon transport through building construction and radon transfer from soil into house; etc.
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Prof. Martin Jiránek (Czech Technical University, Faculty of Civil Engineering, Thákurova 7, 166 29 Praha 6, Czech Republic)11/09/2024, 09:30Radon in civil engineeringOral presentation
In countries where buildings are normally protected against soil moisture or underground water by continuous waterproofing, the waterproof course also provides basic protection against radon from the subsoil. There is currently no European or international standard that specifies how to design waterproof membranes as radon barriers. An overview of the requirements for radon barriers as they...
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Elena Castaño Casco (Universidad de Huelva)11/09/2024, 09:50Radon in civil engineeringOral presentation
The use of supplementary cementitious materials (SCMs) is one of the most used ways to reduce CO2 emissions associated to the production of Portland cement. However, many of these SCMs are Naturally Occurring Radioactive Materials (NORM), which present naturally occurring radionuclides. Radon emission from these types of materials, together with radon infiltration from the ground through them,...
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Christian Di Carlo (Italian National Institute of Health)11/09/2024, 10:10Health effects of radonOral presentation
The International Commission for Radiological Protection (ICRP) recommends to consider a dose coefficient of 20 mSv WLM-1 for workers in tourist caves instead of 10 mSv WLM-1 generally applicable to the majority of circumstances [1]. Furthermore, the radon concentration in touristic caves is generally higher than in the majority of workplaces and the remedial actions are typically very...
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Massimo MORONI11/09/2024, 10:50Radon in civil engineeringOral presentation
This report analyzes the main design criteria for achieving low indoor radon concentration levels both in new constructions and in existing buildings that are part of the historical heritage of our cities. Although achieving low indoor concentrations in new buildings is relatively straightforward with good foundation insulation and the avoidance of emitting materials in the construction...
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Mario Caprio (Istituto Superiore di Sanità (Italy))11/09/2024, 11:10Methods of measurement for both radon and thoron - devices, metrological aspectsOral presentation
In the context of a comprehensive remediation project for a large-scale, historic Italian building utilized as a governmental workplace and containing over 1500 rooms, an advanced monitoring system has been implemented with dual objectives: i) to assess the effectiveness of the remediation interventions, ii) to monitor radon concentrations in all the sections of the entire structure after the...
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Katerina Navratilova Rovenska (National Radiation Protection Institute (SURO))11/09/2024, 13:30Radon - information carrier, radonometry, radon as a tracer gasOral presentation
Historical structures can have complex construction characteristics since they have been rebuilt multiple times, typically without precise blueprints accessible. The primary instruments for identifying at least some of the radon pathways are a determination of the average air exchange rate, grab sampling from suspicious places, and simultaneous continuous monitoring of the radon activity...
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Radim Moznar (National Radiation Protection Institute (SURO))11/09/2024, 13:50Radon - information carrier, radonometry, radon as a tracer gasOral presentation
Radon measurements in historical buildings are always very interesting, but in many cases require a special approach. Historical buildings are often measured prior to planned renovation at a time when they no longer serve their original purpose and are only minimally used. Therefore, meeting the requirements for occupancy or conservative conditions is often impracticable and simultaneous...
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Eric Petermann (Federal Office for Radiation Protection (BfS))11/09/2024, 14:10National programs and projectsOral presentation
Radon is a carcinogenic, radioactive gas that can accumulate indoors. Therefore, accurate knowledge of indoor radon concentration is crucial for assessing radon-related health effects or identifying radon-prone areas.
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Indoor radon concentration at the national scale is usually estimated on the basis of extensive measurement campaigns. However, characteristics of the sample often differ from... -
Sofija Forkapić (University of Novi Sad, Faculty of Sciences, Department of Physics)11/09/2024, 14:30Radon in civil engineeringOral presentation
In Serbia, during the production of electricity and burning of lignite, about 6.5 million tons of waste fly ash are produced annually. During the production of phosphoric acid, about 810 thousand tons of waste phosphogypsum are generated. Available data indicate that about 5% of waste fly ash is recycled in cement production, while phosphogypsum is piled up in landfills. Both wastes contain an...
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Andrea Maiorana (Istituto Superiore di Sanità), Christian Di Carlo (Italian National Institute of Health)11/09/2024, 14:50Radon in civil engineeringPoster
Council Directive 2013/51/Euratom requires to consider any source of radon including the building materials. Assessing the radon activity that exhales from building structures is crucial to identify the best strategies to prevent radon from entering a building or reducing its concentration in the inhabited spaces. According to the current state of knowledge and technology, the radon surface...
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Zuzanna Pawlowska (Central Laboratory for Radiological Protection)11/09/2024, 15:00Radon in civil engineeringOral presentation
The study presents tests on the effectiveness of using air purifiers as a method of reducing radon exposure. Five commercially available air purifier models with different filter sets were tested.
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To ensure the credibility of our results, each air purifier was tested under similar conditions in terms of radon concentration in the air and duration of the experiment.
During each measurement,... -
Christian Di Carlo (Italian National Institute of Health)11/09/2024, 15:40Radon in civil engineeringOral presentation
Exposure of the population to indoor radon is one of the leading causes of lung cancer [1]. Building materials are a recognized source of indoor radon [2], and current national and international regulations [e.g., 3] require consideration of the specific contribution of building materials to indoor radon concentration. This contribution is generally quantified by means of the exhalation rate,...
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Andrea Maiorana (Istituto Superiore di Sanità)11/09/2024, 16:00Radon in civil engineeringOral presentation
Council Directive 2013/51/Euratom [1] requires considering any source of radon including the building materials. Measuring the radon exhalation rate from building materials samples is a useful “screening tool” to compare the likely contribution of building materials to the indoor radon. According to the current state of knowledge and technology, reliable values of radon exhalation rate from...
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