title: Groundwater treatment as a source of indoor radon.
abstract: New Viimsi Parish water treatment plant (Northern Estonia) was investigated in order to determine whether the open filter columns serve as a source of (222)Rn generation in the treatment process and whether they influence indoor air (222)Rn activity concentrations. (222)Rn measurements of indoor (222)Rn were performed at different locations of the treatment plant; water samples from incoming raw water, from all the purification stages, consumers water and solid filter material from two filtration stages were analyzed.
authors.affiliation: University of Tartu, Institute of Physics, Riia 142, 51014 Tartu, Estonia. Electronic address: alar.jantsikene@ut.ee.
authors.forename: Alar
authors.initials: A
authors.lastname: Jantsikene
authors.affiliation: University of Tartu, Institute of Physics, Riia 142, 51014 Tartu, Estonia.
authors.forename: Madis
authors.initials: M
authors.lastname: Kiisk
authors.affiliation: University of Tartu, Institute of Physics, Riia 142, 51014 Tartu, Estonia.
authors.forename: Siiri
authors.initials: S
authors.lastname: Suursoo
authors.affiliation: University of Tartu, Institute of Physics, Riia 142, 51014 Tartu, Estonia.
authors.forename: Rein
authors.initials: R
authors.lastname: Koch
authors.affiliation: Tallinn University of Technology, Department of Chemical Engineering, Ehitajate tee 5, 19086 Tallinn, Estonia.
authors.forename: Liie
authors.initials: L
authors.lastname: Lumiste
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis; D016902:Air Pollution, Indoor / Q000032:analysis*; D004957:Estonia; D060587:Groundwater / Q000032:analysis*; D006801:Humans; D011883:Radium / Q000032:analysis; D011886:Radon / Q000032:analysis*; D012588:Scintillation Counting / Q000379:methods; D014875:Water Pollutants, Radioactive / Q000032:analysis; D018508:Water Purification; D014881:Water Supply / Q000032:analysis
chemical_list: D000396:Air Pollutants, Radioactive; D014875:Water Pollutants, Radioactive; D011886:Radon; D011883:Radium
keywords: Groundwater radioactivity; Indoor radon; Liquid scintillation counting; Naturally occurring radionuclides; Radium accumulation; Water treatment plant