Results 21 to 30 of about 6,413 (228)
210Pb numa região anômala de Pocinhos-Paraíba
Brazilian Journal of Radiation Sciences, 2018 From 1979 to 1982, the extinct company NUCLEBRAS carried out studies on the occurrence of uranium in Pocinhos, a city located in the harsh region of the State of Paraíba, where dairy farms currently exist.
Cleomacio Miguel da Silva +2 more
doaj +1 more source
Radioactivity of soil in Croatia I: naturally occurring decay chains
Arhiv za Higijenu Rada i Toksikologiju, 2021 The assessment of environmental radioactivity much relies on radionuclide content in soil. This stems from the significant contribution of soil to both external and internal exposure to ionising radiation via direct emission of gamma radiation and soil ...
Šoštarić Marko +14 more
doaj +1 more source
Frontiers in Marine Science, 2021 Through a combination of selective extractions and molecular characterization techniques including Isoelectric Focusing Chromatography and Electrospray Ionization Fourier-Transform Ion Cyclotron Resonance Mass spectrometry, molecular structures of diatom
Peng Lin +4 more
doaj +1 more source
Channelized melt flow in downwelling mantle: Implications for 226Ra-210Pb disequilibria in arc magmas [PDF]
, 2008 We present the results of an analytical model of porous flow of viscous melt into a steadily dilating ‘‘channel’’ (defined as a cluster of smaller veins) in downwelling subarc mantle.
Koenders, M. A. +7 more
core +1 more source
Scientia Marina, 2010 Geochemistry, total organic carbon and total nitrogen of three sediment cores collected in the Gulf of Cádiz and the Guadalquivir prodelta areas in Spain were investigated.
Roberta Guerra +4 more
doaj +1 more source
Aerosol and Air Quality Research, 2020 Naturally occurring beryllium-7 (7Be) and lead-210 (210Pb) serve as powerful tracers in atmospheric studies. In this study, 7Be and 210Pb were simultaneously measured in atmospheric aerosols and deposition samples for an entire year (from January to ...
Guoqing Liu +4 more
doaj +1 more source
Variations of 210Pb concentrations in surface air at Thessaloniki, Greece (40°N)
EPJ Web of Conferences, 2012 Atmospheric concentrations of 210Pb were measured over the year 2009 in ground level air at Thessaloniki, Northern Greece (40°62′ N, 22°95′E). The mean activity concentrations of 210Pb in surface air have been found to be 671 ± 213 μBq m−3.
Papastefanou C. +3 more
doaj +1 more source
Radioactive elements in atmospheric precipitations of the Western Siberia [PDF]
E3S Web of Conferences, 2019 The radionuclide composition of the atmospheric precipitations (rain and snow) fell out on the territory of the South of the Western Siberia in 2016-2017 was studied.
Melgunov Mikhail +5 more
doaj +1 more source
Frontiers in Marine Science, 2021 Due to the remoteness and difficulty of sampling, the 210Po and 210Pb data are scarce in the Southern Ocean. Here, the activity concentrations of 210Po and 210Pb around Prydz Bay in austral summer were determined to understand their spatial variation and
Huina Hu +7 more
doaj +1 more source
A New Radiotracer for Particulate Carbon Dynamics: Examination of 210Bi‐210Pb in Seawater
Geochemistry, Geophysics, Geosystems, 2022 210Bi (t1/2 = 5.01 d) is theoretically a radionuclide for tracing the particle cycle over a timescale of hours to days. However, it has been rarely investigated in marine environments due to its very short half‐life and low activity.
Weifeng Yang +4 more
doaj +1 more source