Dissolution characteristics of uranium and lead in simulated lung fluid using fly ash samples from coal-fired power plants in the Czech Republic
Jazyk angličtina Země Anglie, Velká Británie Médium print-electronic
Typ dokumentu časopisecké články
PubMed
36368283
DOI
10.1016/j.jenvrad.2022.107063
PII: S0265-931X(22)00254-5
Knihovny.cz E-zdroje
- Klíčová slova
- Boiler scale, Dissolution kinetics, Fly ash, Lead, Occupational exposure,
- MeSH
- elektrárny MeSH
- monitorování radiace * MeSH
- olovo MeSH
- plíce chemie MeSH
- popel uhelný analýza MeSH
- rozpustnost MeSH
- uhlí MeSH
- uran * MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Česká republika MeSH
- Názvy látek
- olovo MeSH
- popel uhelný MeSH
- uhlí MeSH
- uran * MeSH
Samples of fly ash, slag and boiler scale containing elevated amounts of uranium or lead (210Pb) from several coal-fired power stations in the Czech Republic were collected for an assessment of their dissolution parameters - the dissolution rates and their respective fractions in vitro. The dissolution data were fitted either by a biexponential model or by a triexponential model. The uranium 234U and 238U in the fly ash sample are classified as M-type. Similarly, type M could be attributed for most of the materials containing 210Pb. A complementary measurement of the activity concentrations of 210Pb in relation to the grain size confirmed that the radionuclide is deposited mainly in fine particles (<25 μm).
Citace poskytuje Crossref.org
