title: Natural radioactivity in some building materials in Cuba and their contribution to the indoor gamma dose rate.
abstract: The natural radioactivity of some building materials commonly used in Cuba was measured by gamma spectrometry. Typical concentrations encountered so far encountered are in the ranges: 47-2511 Bq kg(-1) for (40)K; 9-71 Bq kg(-1) for (226)Ra; and 2-38 Bq kg(-1) for (232)Th. The external gamma ray absorbed doses in indoor air and the corresponding effective dose-equivalents in a typical dwelling are presented in this paper.
authors.affiliation: Environmental Engineering Centre, Radioactivity Measurement Laboratory, Ave. Finlay km 2.5 Esquina Circunvalación, Rpto. Puerto Príncipe, Camagüey, Cuba. o.brigido@ciac.cmw.inf.cu
authors.forename: O Brígido
authors.initials: OB
authors.lastname: Flores
authors.forename: A Montalván
authors.initials: AM
authors.lastname: Estrada
authors.forename: J Tomás
authors.initials: JT
authors.lastname: Zerquera
mesh_terms: D016902:Air Pollution, Indoor / Q000032:analysis* / Q000706:statistics & numerical data; D001417:Background Radiation; D003252:Construction Materials / Q000032:analysis* / Q000706:statistics & numerical data; D003462:Cuba / Q000453:epidemiology; D005720:Gamma Rays; D011829:Radiation Dosage; D011834:Radiation Monitoring / Q000379:methods*; D011835:Radiation Protection / Q000379:methods*; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors