title: Variation of indoor radon concentration and ambient dose equivalent rate in different outdoor and indoor environments.
abstract: Subject of this study is an investigation of the variations of indoor radon concentration and ambient dose equivalent rate in outdoor and indoor environments of 40 dwellings, 31 elementary schools and five kindergartens. The buildings are located in three municipalities of two, geologically different, areas of the Republic of Macedonia. Indoor radon concentrations were measured by nuclear track detectors, deployed in the most occupied room of the building, between June 2013 and May 2014. During the deploying campaign, indoor and outdoor ambient dose equivalent rates were measured simultaneously at the same location. It appeared that the measured values varied from 22 to 990 Bq/m(3) for indoor radon concentrations, from 50 to 195 nSv/h for outdoor ambient dose equivalent rates, and from 38 to 184 nSv/h for indoor ambient dose equivalent rates. The geometric mean value of indoor to outdoor ambient dose equivalent rates was found to be 0.88, i.e. the outdoor ambient dose equivalent rates were on average higher than the indoor ambient dose equivalent rates. All measured can reasonably well be described by log-normal distributions. A detailed statistical analysis of factors which influence the measured quantities is reported.
authors.affiliation: Faculty of Medical Sciences, Goce Delcev University, Krste Misirkov No.10-A, P. O. 201, 2000, Stip, Republic of Macedonia. stojanovskazdenka@gmail.com.
authors.forename: Zdenka
authors.initials: Z
authors.lastname: Stojanovska
authors.affiliation: Faculty of Natural and Technical Sciences, Goce Delcev University, Krste Misirkov No.10-A, P. O. 201, 2000, Stip, Republic of Macedonia.
authors.forename: Blazo
authors.initials: B
authors.lastname: Boev
authors.affiliation: Institute of Nuclear Sciences "Vinča", University of Belgrade, P. O. Box 522, Belgrade, 11000, Serbia.
authors.forename: Zora S
authors.initials: ZS
authors.lastname: Zunic
authors.affiliation: National Center of Radiobiology and Radiation Protection, 3 Sv. Georgi Sofiyski st., 1606, Sofia, Bulgaria.
authors.forename: Kremena
authors.initials: K
authors.lastname: Ivanova
authors.affiliation: Faculty of Natural Sciences and Mathematic, Institute of Physics, University in Ss. Cyril and Methodius, Arhimedova 3, 1000, Skopje, Republic of Macedonia.
authors.forename: Mimoza
authors.initials: M
authors.lastname: Ristova
authors.affiliation: National Center of Radiobiology and Radiation Protection, 3 Sv. Georgi Sofiyski st., 1606, Sofia, Bulgaria.
authors.forename: Martina
authors.initials: M
authors.lastname: Tsenova
authors.affiliation: Croatian Geological Survey, Sachsova 2, P. O. Box 268, Zagreb, Croatia.
authors.forename: Sorsa
authors.initials: S
authors.lastname: Ajka
authors.affiliation: Faculty of Medical Sciences, Goce Delcev University, Krste Misirkov No.10-A, P. O. 201, 2000, Stip, Republic of Macedonia.
authors.forename: Emilija
authors.initials: E
authors.lastname: Janevik
authors.affiliation: Faculty of Medical Sciences, Goce Delcev University, Krste Misirkov No.10-A, P. O. 201, 2000, Stip, Republic of Macedonia.
authors.forename: Vaso
authors.initials: V
authors.lastname: Taleski
authors.affiliation: German Federal Office for Radiation Protection, div. SW 1.1, 120-130 Köpenicker Allee, 10318, Berlin, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Bossew
mesh_terms: D016902:Air Pollution, Indoor / Q000032:analysis*; D000704:Analysis of Variance; D004777:Environment; D025341:Principal Component Analysis; D011834:Radiation Monitoring; D011886:Radon / Q000032:analysis*
chemical_list: D011886:Radon
keywords: ANOVA; Ambient dose equivalent rate; Correlations; Principal component analysis; Radon