| Validation of a geologically based radon risk map: are the indoor radon concentrations higher in high-risk areas? | |
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MedLine Citation:
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PMID: 10524508 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Since geographically coded information is frequently used in studies of the relationships between environmental factors and illness at the population level and by authorities for promotion of mitigation, knowledge about the validity of proxy measures is essential. This study was an evaluation of a geologically based map describing the risk for high radon levels, which was used by the municipal authorities to determine the necessity of remedial actions. Annual mean radon gas concentrations for a random sample of one-family homes selected from high-risk areas (n = 252) were compared with those of a random sample of homes from normal and low-risk areas (n = 259). No difference in geometric mean radon concentration was found between the areas, 101 Bq m(-3) and 103 Bq m(-3), respectively. The proportion of homes in each area with radon gas concentrations above the current Swedish administrative limit value for mitigation (400 Bq m(-3)) was similar, approximately 10%. We conclude that the radon risk map was unsuitable for identifying areas of concern. The findings also indicate that geologically based and geographically coded information as a proxy for human exposures can be safely used for scientific and administrative purposes only following validation. |
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Authors:
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L Friis; N Carter; O Nordman; A Simeonidis; S Järdö |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Health physics Volume: 77 ISSN: 0017-9078 ISO Abbreviation: Health Phys Publication Date: 1999 Nov |
Date Detail:
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Created Date: 1999-11-01 Completed Date: 1999-11-01 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 2985093R Medline TA: Health Phys Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 541-4 Citation Subset: IM |
Affiliation:
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Department of Occupational and Environmental Medicine, University Hospital, Uppsala, Sweden. Lennart.Friis@occmed.uu.se |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollution, Indoor
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analysis*,
prevention & control Air Pollution, Radioactive / analysis*, prevention & control Geological Phenomena Geology Housing* Humans Radiation Monitoring Radon / analysis* Reproducibility of Results Risk Assessment Sweden |
| Chemical | |
Reg. No./Substance:
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10043-92-2/Radon |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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