| (222)Rn concentration in public secondary schools in Galicia (Spain). | |
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MedLine Citation:
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PMID: 20630630 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In the framework of a (222)Rn screening campaign that was carried out in 58 public secondary schools in Galicia (NW Spain), the largest radon-prone area in the Iberian Peninsula, a positive correlation between indoor (222)Rn concentration and outdoor gamma exposure rate was obtained. A new approach to the data acquisition in screening surveys was tested, improving the performances of this type of study and gathering useful data for future remedial actions. Using short-period detectors (charcoal canisters) firstly, in order to detect places showing (222)Rn concentrations over 400Bqm(-3), the number of locations to be measured with long-period detectors (etched track detectors) is reduced. In this screening campaign, 34% of the schools surveyed presented at least one site exceeding the 400Bqm(-3) recommended action level established by the EU, and 15% had at least one site with (222)Rn values over 800Bqm(-3). The maximum value recorded was 2084+/-63Bqm(-3). These results are discussed and compared with data obtained in schools of several countries with similar geology. Seven schools were also studied for seasonal variations of (222)Rn activity concentration. The results were not conclusive, and no significant correlation between season and (222)Rn concentration was established. Finally, a continuous (222)Rn concentration monitor was placed in the secondary school exhibiting a mean value of the (222)Rn concentration very close to 400Bqm(-3). Maximum (222)Rn concentration values were found to occur at times when the school was unoccupied. |
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Authors:
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J J Llerena; D Cortina; I Durán; R Sorribas |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-07-14 |
Journal Detail:
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Title: Journal of environmental radioactivity Volume: 101 ISSN: 1879-1700 ISO Abbreviation: J Environ Radioact Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-09-06 Completed Date: 2010-12-21 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8508119 Medline TA: J Environ Radioact Country: England |
Other Details:
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Languages: eng Pagination: 931-6 Citation Subset: IM |
Affiliation:
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Departamento de Física de Partículas, Universidade de Santiago de Compostela, Santiago de Compostela, Spain. juanjose.llerena@usc.es |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants, Radioactive
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analysis* Geography Humans Radiation Monitoring* / instrumentation Radon / analysis* Schools* Seasons Spain |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants, Radioactive; 10043-92-2/Radon |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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