title: Indoor radon levels in primary schools of Patras, Greece.
abstract: Radon activity concentrations have been measured in 53 from a total of 66 public primary schools throughout of Patras, Greece, during December 1999 to May 2000 using solid-state nuclear track detectors (LR-115 II). The indoor radon levels in the classrooms were generally low, ranging from 10 to 89 Bqm(-3). The mean (arithmetic mean) indoor concentration was 35 +/- 17 Bq m(-3) and an estimated annual effective dose of 0.1 +/- 0.1 mSv y(-1) was calculated for students and 0.2 +/- 0.1 mSv y(-1) for teachers, assuming an equilibrium factor of 0.4 and occupancy factor of 12 and 14%, respectively. The research was also focused on parameters affecting radon concentration levels such as floor number of the classrooms and the age of the buildings in relation to building materials.
authors.affiliation: Division of Physical, Inorganic and Nuclear Chemistry, Department of Chemistry, University of Patras, Patras, Greece. epap@chemistry.upatras.gr
authors.forename: H
authors.initials: H
authors.lastname: Papaefthymiou
authors.forename: C D
authors.initials: CD
authors.lastname: Georgiou
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis* / Q000706:statistics & numerical data*; D006115:Greece; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011886:Radon / Q000032:analysis*; D012574:Schools / Q000706:statistics & numerical data*
chemical_list: D000396:Air Pollutants, Radioactive; D011886:Radon