Analysis of causes of increased radon concentration in groundwater using GIS and multivariate statistics
2005 (English)In: Proceedings of the Fennoscandian 3rd Rerional Workshop on Hardrock Hydrogeology / [ed] Rönkä, E., Niini, H., Suokko, T., Helsinki: Edita Publishing Oy, 2005, 62-67 p.Conference paper (Refereed)
High radon concentration in drilled wells contributes to an increased risk of radiation and is therefore a health threat. This preliminary study focuses on 1,460-drilled wells in Stockholm County in Sweden and involves the use of GIS to investigate the infl uence of soil, bedrock, fracture zone, elevation, landuse and slope of a terrain on the radon content in drilled wells at a regional level. Statistical analyses of data were performed, using Kruskal-Wallis ANOVA by ranks and the multivariate statistical method of Principal Component Analysis (PCA). The project has so far shown that 8% of analysed wells exceed the Swedish regulatory limit of 1000 Bq/l while 26% of the 1460 wells have a radon concentration greater than 500 Bq/l. In addition it was found that bedrock, topography and the use of the well clearly affect the radon content.
Place, publisher, year, edition, pages
Helsinki: Edita Publishing Oy, 2005. 62-67 p.
, Finnish Environment Institute, Report, ISSN 1238-7312 ; 790
Radon, Groundwater, GIS, statistical analysis
IdentifiersURN: urn:nbn:se:kth:diva-86576ISBN: 952-11-2036-3ISBN: 952-11-2037-1OAI: oai:DiVA.org:kth-86576DiVA: diva2:500881
Fennoscandian 3rd Rerional Workshop on Hardrock Hydrogeology, 7-9 June, Helsinki, Finland
QC 201202272012-02-132012-02-132012-02-27Bibliographically approved