A statistical evaluation of the geogenic controls on indoor radon concentrations and radon risk

ANOVA is used to show that approximately 25% of the total variation of indoor radon concentrations in England and Wales can be explained by the mapped bedrock and superficial geology. The proportion of the total variation explained by geology is higher (up to 37%) in areas where there is strong cont...

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Bibliographic Details
Published in:Journal of environmental radioactivity 2010-10, Vol.101 (10), p.799-803
Main Authors: Appleton, J.D., Miles, J.C.H.
Format: Article
Language:English
Subjects:
Air Pollutants, Radioactive - analysis
Air Pollution, Indoor - analysis
Analysis of Variance
ANOVA
Applied sciences
Atmospheric pollution
Biological and medical sciences
Biological effects of radiation
Boundaries
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
Geology
Indoor pollution and occupational exposure
Pollution
Radioprotection
Radon
Radon - analysis
Risk Factors
Tissues, organs and organisms biophysics
United Kingdom
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Summary:ANOVA is used to show that approximately 25% of the total variation of indoor radon concentrations in England and Wales can be explained by the mapped bedrock and superficial geology. The proportion of the total variation explained by geology is higher (up to 37%) in areas where there is strong contrast between the radon potential of sedimentary geological units and lower (14%) where the influence of confounding geological controls, such as uranium mineralisation, cut across mapped geological boundaries. When indoor radon measurements are grouped by geology and 1-km squares of the national grid, the cumulative percentage of the variation between and within mapped geological units is shown to be 34–40%. The proportion of the variation that can be attributed to mapped geological units increases with the level of detail of the digital geological data. This study confirms the importance of radon maps that show the variation of indoor radon concentrations both between and within mapped geological boundaries.
ISSN:0265-931X
1879-1700
DOI:10.1016/j.jenvrad.2009.06.002