title: Residential, soil and water radon surveys in north-western part of Romania.
abstract: The exposure to radon and radon decay products in homes and at workplaces represents the greatest risk from natural ionizing radiation. The present study brings forward the residential, soil and water radon surveys in 5 counties of Romania. Indoor radon measurements were performed by using CR-39 track detectors exposed for 3 months on ground-floor level of dwellings, according to the NRPB Measurements Protocol. Radon concentrations in soil and water were measured using the LUK3C device. The indoor radon concentrations ranged from 5 to 2592 Bq⋅m-3with an updated preliminary arithmetic mean of 133 Bq⋅m-3, and a geometric mean of 90 Bq⋅m-3. In about 6% of the investigated grid cells the indoor radon concentrations exceed the threshold of 300 Bq⋅m-3. The soil gas radon concentration varies from 0.8 to 169 kBq⋅m-3, with a geometric mean of 28.4 kBq⋅m-3. For water samples, the results show radon concentrations within the range of 0.3-352 kBq⋅m-3with a geometric mean of 7.7 Bq⋅L-1. The indoor radon map was plotted on a reference grid developed by JRC with the resolution 10 × 10 km2.
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania.
authors.forename: Alexandra
authors.initials: A
authors.lastname: Cucoş Dinu
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania. Electronic address: papp.botond@ubbcluj.ro.
authors.forename: Botond
authors.initials: B
authors.lastname: Papp
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania.
authors.forename: Tiberius
authors.initials: T
authors.lastname: Dicu
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania.
authors.forename: Mircea
authors.initials: M
authors.lastname: Moldovan
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania.
authors.forename: Denissa Bety
authors.initials: DB
authors.lastname: Burghele
authors.affiliation: Faculty of Chemistry and Chemical Engineering, Babeş-Bolyai University, Arany János Street, No. 11, 400028, Cluj-Napoca, Romania.
authors.forename: Ionuţ Tudor
authors.initials: IT
authors.lastname: Moraru
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania.
authors.forename: Ancuţa
authors.initials: A
authors.lastname: Tenţer
authors.affiliation: Faculty of Environmental Science and Engineering, Babeş-Bolyai University, Fântânele Street, No. 30, 400294, Cluj-Napoca, Romania.
authors.forename: Constantin
authors.initials: C
authors.lastname: Cosma
mesh_terms: D016902:Air Pollution, Indoor; D001417:Background Radiation; D011834:Radiation Monitoring; D011848:Radioactive Pollutants / Q000032:analysis*; D011886:Radon / Q000032:analysis; D012383:Romania; D012987:Soil; D011795:Surveys and Questionnaires; D014867:Water
chemical_list: D011848:Radioactive Pollutants; D012987:Soil; D014867:Water; D011886:Radon
keywords: Indoor; Log-normal distribution; Radon map; Soil; Water