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Quantifying of highly radioactive and radiotoxic polonium-210 intake from cannabis (Cannabis sativa L.): impacts of different smoking and vaporization techniques.
Environ Sci Pollut Res Int
November 2024
Department of Chemistry and Radiochemistry of Environment, Faculty of Chemistry, the University of Gdansk, Gdansk, Poland.
This study investigates the radiation dose that humans receive from naturally occurring uranium-series radionuclides, with a focus on alpha-emitting polonium-210 (Po), which has a half-life of 138.4 days. Polonium is efficiently absorbed by living organisms and is estimated to contribute approximately 7% of the total effective dose from ingested natural internal radiation.
View Article and Find Full Text PDFHydrochemical and geological controls on dissolved radium and radon in northwestern Algeria hydrothermal groundwaters.
Chemosphere
February 2023
Department of the Geophysical Sciences, University of Chicago, Chicago, IL, 60637, USA; Department of Geology, Tanta University, Tanta, 31527, Egypt.
This study presents the results of the first investigation on natural occurrence of radium and radon in Algerian thermal water systems. Activity concentrations of Rn and Ra isotopes were measured in sixteen hydrothermal springs of northwestern Algeria. Samples displayed high activities, especially for Rn, Ra and Ra (up to 377 × 10 Bq/m, 730 Bq/m and 4470 Bq/m, respectively).
View Article and Find Full Text PDFResearch on Three-level Enrichment Method Based on 222Rn.
Health Phys
January 2023
School of Nuclear Science and Technology, University of South China, Hunan 421001, China.
Various low-concentration inert gases, including 222Rn, 133Xe, and 85Kr, pollute the atmosphere near nuclear facilities (e.g., nuclear power plants or reprocessing plants).
View Article and Find Full Text PDFArticle Synopsis
- This review discusses how naturally occurring radioactive materials (NORM), particularly from uranium and thorium decay series, can contaminate groundwater resources and pose health risks due to their toxicity and radiation.
- It emphasizes the importance of understanding the factors that influence the mobilization and retention of these radioactive nuclides in groundwater, including elemental chemistry, lithology, hydrogeology, and groundwater geochemistry.
- The paper also notes how different chemical properties of nuclides affect their likelihood of co-occurrence in groundwater, affected by conditions like redox state and groundwater permeability.
Determination of the diffusion coefficient and solubility of radon in plastics.
Radiat Prot Dosimetry
May 2011
Faculty of Physics, University of Sofia St. Kliment Ohridski, 5 James Bourchier Blvd, 1164 Sofia, Bulgaria.
This paper describes a method for determination of the diffusion coefficient and the solubility of radon in plastics. The method is based on the absorption and desorption of radon in plastics. Firstly, plastic specimens are exposed for controlled time to referent (222)Rn concentrations.
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