title: Natural radioactivity in Spanish soils.
abstract: The program of studies and surveys of natural radiation and radioactivity in Spain organized by our research group at the end of the 1980s included a 4-y national survey to determine the concentrations of natural radionuclides in soil. Results obtained from measurements of soil samples collected nationwide at > 900 sampling sites are reported and discussed in this paper. Correlations between absorbed dose rates in air calculated from natural radionuclide concentrations in soil and terrestrial gamma dose rates measured experimentally outdoors are shown for the different autonomous regions of Spain. Assessment is also made of the dose to the Spanish population from outdoor exposure to terrestrial gamma rays.
authors.affiliation: Department of Medical Physics, Faculty of Medicine, University of Cantabria, Santander, Spain.
authors.forename: L S
authors.initials: LS
authors.lastname: Quindós
authors.forename: P L
authors.initials: PL
authors.lastname: Fernández
authors.forename: J
authors.initials: J
authors.lastname: Soto
authors.forename: C
authors.initials: C
authors.lastname: Ródenas
authors.forename: J
authors.initials: J
authors.lastname: Gómez
mesh_terms: D001417:Background Radiation; D003625:Data Collection; D006801:Humans; D011159:Population Surveillance; D012989:Soil Pollutants / Q000032:analysis*; D013030:Spain
chemical_list: D012989:Soil Pollutants