Results 11 to 20 of about 14,492 (315)

A sensitive method to determine 210Po and 210Pb in environmental samples by alpha spectrometry using CuS micro-precipitation [PDF]

open access: yesScientific Reports, 2023
A new sensitive method to determine polonium-210 (210Po) and lead-210 (210Pb) in a diversity of environmental samples was developed. For fresh and marine waters, Po was pre-concentrated using a titanium (III) hydroxide (Ti(OH)3) co-precipitation.
Stephanie Walsh   +4 more
doaj   +2 more sources

Removal of the Homolog Tellurium of Polonium by SiO2 Nanofiber Filter for Lead Alloy-Cooled Reactors

open access: yesToxics, 2022
The lead–bismuth eutectic (LBE) can be easily activated by neutron radiation to produce the radionuclide 210Po. It is therefore necessary to establish an effective method to remove vaporized polonium in the cover gas to prevent its release into the air ...
Xujie Chen   +7 more
doaj   +1 more source

Utilization of Soot and 210 Po-210 Pb Disequilibria to Constrain Particulate Organic Carbon Fluxes in the Northeastern South China Sea

open access: yesFrontiers in Marine Science, 2021
Black carbon (BC) is believed to be refractory and thus affects the timescale of organic carbon conversion into CO2 and the magnitude of the sink of CO2. However, the fate of BC in the oceans remains poorly understood. Here, 210Po and 210Pb were measured
Weifeng Yang   +10 more
doaj   +1 more source

Estimasi Dosis Radiasi 210Po pada Ikan Laut Konsumsi dari Perairan Banda Aceh

open access: yesJurnal Kelautan Tropis, 2021
The main idea of this study is to calculate 210Po activity in marine biota from Banda Aceh waters and calculate dose estimates for marine biota consumers.
Risa Chintia Balqis   +2 more
doaj   +1 more source

Multi-Physics Model Development for Polonium Transport Behavior in a Lead-Cooled Fast Reactor

open access: yesFrontiers in Energy Research, 2021
210Po, a highly toxic element with strong volatility, is one of the main source terms of a Gen-IV lead-cooled fast reactor (LFR). Therefore, the radioactive safety caused by 210Po has become an important topic in LFR-related research.
Deng Lilin   +8 more
doaj   +1 more source

Activity Levels of 210Po, 210Pb and Other Radionuclides (134Cs, 137Cs, 90Sr, 110mAg, 238U, 226Ra and 40K) in Marine Organisms From Coastal Waters Adjacent to Fuqing and Ningde Nuclear Power Plants (China) and Radiation Dose Assessment

open access: yesFrontiers in Marine Science, 2021
With the rapid development of nuclear power, the radiation impacts on edible marine organisms, and the potential radiation risks to humans have become of considerable concern to public health.
Jiang Sun   +6 more
doaj   +1 more source

Measurement of activity concentration of polonium-210 in species of the phylum mollusca, Tabasco, Mexico

open access: yesPROCEEDINGS OF THE XVI MEXICAN SYMPOSIUM ON MEDICAL PHYSICS, 2021
The activity concentration of polonium-210 in the soft tissue of several species of mollusks of coastal areas from Tabasco, Mexico, has been determined. Polonium-210 is a natural radionuclide that may be bioaccumulated by flora and fauna, particularly by
C. D. Mandujano-García   +5 more
semanticscholar   +1 more source

Focus presuppositions [PDF]

open access: yes, 2008
This paper reviews notions related to focus and presupposition and addresses the hypothesis that focus triggers an existential presupposition. Presupposition projection behavior in certain examples appears to favor a presuppositional analysis of focus ...
Abusch, Dorit
core   +1 more source

Occurrence and Geochemistry of Lead-210 and Polonium-210 Radionuclides in Public-Drinking-Water Supplies from Principal Aquifers of the United States.

open access: yesEnvironmental Science and Technology, 2020
On the basis of lifetime cancer risks, lead-210 (210Pb) and polonium-210 (210Po) ≥ 1.0 and 0.7 pCi/L (picocuries per liter), respectively, in drinking-water supplies may pose human-health concerns.
Z. Szabó, P. Stackelberg, C. Cravotta
semanticscholar   +1 more source

A review of radio chemical analysis and estimation of 210Po in soil matrices

open access: yesJournal of Radiation Research and Applied Sciences, 2015
The naturally occurring radionuclide 210Po, arising from the uranium–radium decay series, provides a considerable contribution to the radiation exposure to humans.
N.K. Sethy   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy