Folly, Christophe L; Mazzei-Abba, Antonella; Coste, Astrid; Kreis, Christian; Spycher, Ben D (2022). Measurements and determinants of children's exposure to background gamma radiation in Switzerland. Journal of radiation research, 63(3), pp. 354-363. Oxford University Press 10.1093/jrr/rrac006
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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.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Social and Preventive Medicine (ISPM) |
Graduate School: |
Graduate School for Health Sciences (GHS) |
UniBE Contributor: |
Folly, Christophe Leopold, Mazzei Abba, Antonella, Coste, Astrid, Kreis, Christian, Spycher, Ben |
Subjects: |
600 Technology > 610 Medicine & health 300 Social sciences, sociology & anthropology > 360 Social problems & social services |
ISSN: |
1349-9157 |
Publisher: |
Oxford University Press |
Funders: |
[4] Swiss National Science Foundation ; [193] Swiss Cancer League = Krebsliga Schweiz |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
30 Mar 2022 09:51 |
Last Modified: |
05 Dec 2022 16:17 |
Publisher DOI: |
10.1093/jrr/rrac006 |
PubMed ID: |
35349709 |
Uncontrolled Keywords: |
dosimetry exposure measurements low dose ionizing radiation natural background radiation terrestrial radiation |
BORIS DOI: |
10.48350/168406 |
URI: |
https://boris.unibe.ch/id/eprint/168406 |
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