RT Journal Article
T1 A comparative study of alternative methods for 210Pb determination in environmental samples
A1 Cuesta Beltrán, Estefanía
A1 Barba Lobo, Alejandro
A1 Lozano Bermejo, Rafael Luis
A1 Gutiérrez de San Miguel Herrera, Enrique
A1 Mosqueda Peña, Fernando
A1 Bolívar Raya, Juan Pedro
AB The accurate determination of the levels of 210Pb in environmental samples (e.g. atmospheric aerosols, waters, soils, biota, etc.) is essential due to its multiple applications in geochronology, radiation protection, groundwaters flows, air masses movement, etc. For this purpose, it has been developed a novel and thorough study of three alternative radiometric measuring methods of 210Pb activity concentrations in several types of samples. The three selected methods were low-level gamma spectrometry (210Pb), alpha-particle spectrometry (via 210Po), and Cherenkov counting (via 210Bi). This study has been performed in terms of precision, linearity and proportionality as well as spent time, type of matrix, and showing the most appropriate method of measure in each case. Several kinds of samples were analyzed such as atmospheric filters, soils, sediments and phosphogypsum (PG) matrices. These samples contain different 210Pb activity concentrations and were measured by the three techniques carrying out radiochemical procedures when necessary. There were not significant differences in the results obtained for the samples analyzed by the three methods. The major precision was obtained by using alpha-particle spectrometry, but this method is more expensive and time consuming.
PB Elsevier
YR 2021
FD 2021
LK http://hdl.handle.net/10272/20418
UL http://hdl.handle.net/10272/20418
LA eng
NO Cuesta, E., Barba-Lobo, A., Lozano, R.L., San Miguel, E.G., Mosqueda, F., Bolívar, J.P., 2022. A comparative study of alternative methods for 210Pb determination in environmental samples. Radiat. Phys. Chem. 191, 109840. https://doi.org/10.1016/j.radphyschem.2021.109840.
NO This research was partially funded by a project of the RegionalGovernment of Andalusia “Basic processes regulating the fractionationsand enrichments of natural radionuclides under acid mine drainageconditions” (Ref.: UHU-1255876), and a project of the Projects for NovelPrincipal Investigators “Quantitative study of the variables involved inthe radon exhalation rate for granular solids; application to rafts ofgranular solid phosphogypsum” (Ref.: UHUPJ-00005-632). A.B.L. ac-knowledges support from funds provided by the Spanish Ministry ofScience, Innovation and Universities’ Research Agency and co-financingprovided by the European Social Fund (ESF) and the Spanish NationalYouth Guarantee Implementation Plan under Contract No. PEJ2018-002676-A. The authors acknowledge the funding for open access chargeprovided by Universidad de Huelva / CBUA
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026