Models of radon exhalation from building structures : General and case-specific solutions
Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved..
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. The direct measurement is extremely difficult, so the common approach has consisted in developing models describing the radon migration and exhalation phenomena for building porous materials. However, due to the mathematical complexity of comprehensively modelling the radon transport phenomenon in buildings, simplified equations have been mostly adopted until now to assess the radon exhalation. A systematic analysis of the models applicable to radon transport has been carried out and it has resulted in four models differing in the migration mechanisms - only diffusive or diffusive and advective - and the presence of inner radon generation. The general solutions have been obtained for all the models. Moreover, three case-specific sets of boundary conditions have been formulated to account for all the actual scenarios occurring in buildings: both perimetral and partition walls and building structures in direct contact with soil or embankments. The corresponding case-specific solutions obtained serve as a key practical tool to improve the accuracy in assessing the contribution of building materials to indoor radon concentration according to the site-specific installation conditions in addition to the material inner properties.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:885 |
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| Enthalten in: |
The Science of the total environment - 885(2023) vom: 10. Aug., Seite 163800 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Di Carlo, C [VerfasserIn] |
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| Links: |
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| Themen: |
Building materials |
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| Anmerkungen: |
Date Completed 08.06.2023 Date Revised 08.06.2023 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.scitotenv.2023.163800 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM356523438 |
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| 245 | 1 | 0 | |a Models of radon exhalation from building structures |b General and case-specific solutions |
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| 500 | |a Date Revised 08.06.2023 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved. | ||
| 520 | |a 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. The direct measurement is extremely difficult, so the common approach has consisted in developing models describing the radon migration and exhalation phenomena for building porous materials. However, due to the mathematical complexity of comprehensively modelling the radon transport phenomenon in buildings, simplified equations have been mostly adopted until now to assess the radon exhalation. A systematic analysis of the models applicable to radon transport has been carried out and it has resulted in four models differing in the migration mechanisms - only diffusive or diffusive and advective - and the presence of inner radon generation. The general solutions have been obtained for all the models. Moreover, three case-specific sets of boundary conditions have been formulated to account for all the actual scenarios occurring in buildings: both perimetral and partition walls and building structures in direct contact with soil or embankments. The corresponding case-specific solutions obtained serve as a key practical tool to improve the accuracy in assessing the contribution of building materials to indoor radon concentration according to the site-specific installation conditions in addition to the material inner properties | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Building materials | |
| 650 | 4 | |a Indoor air | |
| 650 | 4 | |a Natural radioactivity | |
| 650 | 4 | |a Radon exhalation | |
| 650 | 4 | |a Radon transport | |
| 700 | 1 | |a Maiorana, A |e verfasserin |4 aut | |
| 700 | 1 | |a Ampollini, M |e verfasserin |4 aut | |
| 700 | 1 | |a Antignani, S |e verfasserin |4 aut | |
| 700 | 1 | |a Caprio, M |e verfasserin |4 aut | |
| 700 | 1 | |a Carpentieri, C |e verfasserin |4 aut | |
| 700 | 1 | |a Bochicchio, F |e verfasserin |4 aut | |
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