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Measurements and determinants of children’s exposure to background gamma radiation in Switzerland

Epidemiological studies of children’s cancer risks associated with background gamma radiation exposure have used geographic exposure models to estimate exposure at their locations of residence. We measured personal exposure to background gamma radiation, and we investigated the extent to which it wa...

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Autores principales: Folly, Christophe L, Mazzei-Abba, Antonella, Coste, Astrid, Kreis, Christian, Spycher, Ben D
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9124624/
https://www.ncbi.nlm.nih.gov/pubmed/35349709
http://dx.doi.org/10.1093/jrr/rrac006
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author Folly, Christophe L
Mazzei-Abba, Antonella
Coste, Astrid
Kreis, Christian
Spycher, Ben D
author_facet Folly, Christophe L
Mazzei-Abba, Antonella
Coste, Astrid
Kreis, Christian
Spycher, Ben D
author_sort Folly, Christophe L
collection PubMed
description Epidemiological studies of children’s cancer risks associated with background gamma radiation exposure have used geographic exposure models to estimate exposure at their locations of residence. We measured personal exposure to background gamma radiation, and we investigated the extent to which it was associated with children’s whereabouts. We collected data on whereabouts and exposure to background gamma radiation over a 5-day period among children aged 4–15 years in Switzerland. We used D-Shuttle dosimeters to measure children’s exposure, and we asked parents to write their children’s activities in diaries. We used Poisson mixed-effects and linear regression models to investigate the association of hourly and overall doses, respectively, with children’s reported whereabouts. During the observed time, 149 participating children spent 66% indoors at home; 19% indoors away from home; and 15% outdoors. The mean personal exposure was 85.7 nSv/h (range 52.3 nSv/h–145 nSv/h). Exposure was 1.077 (95% CI 1.067, 1.087) times higher indoors than outdoors and varied by building material and (predicted) outdoor dose rates. Our study provides detailed information about children’s patterns of exposure to background gamma radiation in Switzerland. Dwelling building materials and outdoor dose rates are important determinants of children’s exposure. Future epidemiological studies may benefit from including information about building materials.
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spelling pubmed-91246242022-05-23 Measurements and determinants of children’s exposure to background gamma radiation in Switzerland Folly, Christophe L Mazzei-Abba, Antonella Coste, Astrid Kreis, Christian Spycher, Ben D J Radiat Res Fundamental Radiation Science Epidemiological studies of children’s cancer risks associated with background gamma radiation exposure have used geographic exposure models to estimate exposure at their locations of residence. We measured personal exposure to background gamma radiation, and we investigated the extent to which it was associated with children’s whereabouts. We collected data on whereabouts and exposure to background gamma radiation over a 5-day period among children aged 4–15 years in Switzerland. We used D-Shuttle dosimeters to measure children’s exposure, and we asked parents to write their children’s activities in diaries. We used Poisson mixed-effects and linear regression models to investigate the association of hourly and overall doses, respectively, with children’s reported whereabouts. During the observed time, 149 participating children spent 66% indoors at home; 19% indoors away from home; and 15% outdoors. The mean personal exposure was 85.7 nSv/h (range 52.3 nSv/h–145 nSv/h). Exposure was 1.077 (95% CI 1.067, 1.087) times higher indoors than outdoors and varied by building material and (predicted) outdoor dose rates. Our study provides detailed information about children’s patterns of exposure to background gamma radiation in Switzerland. Dwelling building materials and outdoor dose rates are important determinants of children’s exposure. Future epidemiological studies may benefit from including information about building materials. Oxford University Press 2022-03-28 /pmc/articles/PMC9124624/ /pubmed/35349709 http://dx.doi.org/10.1093/jrr/rrac006 Text en © The Author(s) 2022. Published by Oxford University Press on behalf of The Japanese Radiation Research Society and Japanese Society for Radiation Oncology. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Fundamental Radiation Science
Folly, Christophe L
Mazzei-Abba, Antonella
Coste, Astrid
Kreis, Christian
Spycher, Ben D
Measurements and determinants of children’s exposure to background gamma radiation in Switzerland
title Measurements and determinants of children’s exposure to background gamma radiation in Switzerland
title_full Measurements and determinants of children’s exposure to background gamma radiation in Switzerland
title_fullStr Measurements and determinants of children’s exposure to background gamma radiation in Switzerland
title_full_unstemmed Measurements and determinants of children’s exposure to background gamma radiation in Switzerland
title_short Measurements and determinants of children’s exposure to background gamma radiation in Switzerland
title_sort measurements and determinants of children’s exposure to background gamma radiation in switzerland
topic Fundamental Radiation Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9124624/
https://www.ncbi.nlm.nih.gov/pubmed/35349709
http://dx.doi.org/10.1093/jrr/rrac006
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