The concentrations of 210Pb and its states of equilibrium with 238U, 234U and 230Th in U miners' lungs obtained at autopsy are reported. The concentration of 210Pb ranged from 0.63 to 123 Bq/kg wet weight with an average of 32.7 Bq/kg. The 210Pb concentrations were almost seven times higher than the concentrations of 238U, 234U and 230Th. The radiation dose rates to U miners' lungs from 210Po alone ranged from 0.017 to 3.30 mGy/y with an average of 0.88 mGy/y. The dose rates from 238U, 234U and 230Th combined ranged from 6.8 X 10(-3) to 7.2 X 10(-1) mGy/y with an average of 2.9 X 10(-1) mGy/y. The dose rates from all alpha-emitting members of the 238U series, excluding 210Po, varied from 1.1 X 10(-2) to 2.2 mGy/y with an average of 7.5 X 10(-1) mGy/y.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1097/00004032-198610000-00009 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Chemical insight into pros and cons of coffees from different regions.
Sci Rep
January 2025
Faculty of Chemistry, Department of Analytical Chemistry, Gdańsk University of Technology, Gabriela Narutowicza 11/12 Str., 80-233, Gdańsk, Poland.
The main aim of this work was to study the chemical composition of eighteen ground coffees from different countries and continents with regard to the content of hazardous substances as radioactive elements (K, Ra, Ra, U, U and Cs), metals, including heavy metals, aluminum and some microelements (V, Cr, Mn, Fe, Co, Ni, Cu, Zn) as well as substances that have a positive effect on human health and well-being (polyphenols, proteins, fats and caffeine). The tests were carried out before and after the brewing process using the following techniques: gamma and beta spectrometry, a microwave-induced plasma optical emission spectrometer (MIP-OES), gravimetric method, UV-Vis spectrophotometry as well as thin-layer chromatography. The leaching percentage of certain elements/compounds in coffee infusions was also measured.
View Article and Find Full Text PDFComprehensive analysis of naturally occurring radionuclides in well water: Isotopic ratios, mitigation, and dose assessment.
Ecotoxicol Environ Saf
January 2025
Department of Medical Radiation Sciences, Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg, Gothenburg SE-413 45, Sweden.
In Sweden, around 20 % of the potable water comes from groundwater sources and about one million people drink water from their private wells. In areas with moderate or high abundance of naturally occurring radionuclides in the bedrock, the groundwater could be enhanced with radio and chemically toxic elements such as uranium, radium, lead and polonium. Therefore, this study aims to carry out a comprehensive analysis of the behaviour and radiological impact of naturally occurring radionuclides in well water.
View Article and Find Full Text PDFDisequilibrium in natural decay series in samples from Czech water treatment plants: Uranium, radium and thorium isotopes determination.
J Environ Radioact
January 2025
National Radiation Protection Institute (SURO), Bartoškova 28, 140 00, Prague, Czech Republic.
In the Czech Republic, underground or mixed source water treatment plants are classified as the workplaces with possible increased exposure from a natural source of radiation. When releasing waste materials or residues from these NORM workplaces into the environment, the content of natural radionuclides is measured and compared with the clearance levels established by Czech legislation. The content of natural radionuclides in solid samples is determined primarily by high-resolution gamma-ray spectrometry.
View Article and Find Full Text PDFRadiological characterization related to lithology and risk assessment of bottled natural mineral water.
Environ Monit Assess
November 2024
Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, Unitat de Radioquímica Ambiental i Sanitària, Ctra. Nacional 340, Km. 1094, 43895 L'Ampolla, Tarragona, Spain.
The enhancement of natural radioactivity in groundwater, specifically in natural mineral water, is related to the lithological formations through which water bodies or courses pass. Although natural mineral waters are exempt from monitoring for radioactive substances according to Council Directive 2013/51/EURATOM, this study focuses on the radiological characterization of natural mineral water under Spanish Royal Decree 3/2023. The water studied was taken from Catalan aquifers with different lithological characteristics (sedimentary, metamorphic or granitic) and is sold on local markets.
View Article and Find Full Text PDFAdsorption rate of uranium and thorium isotopes in soil and plants grown in a high background radiation area.
Isotopes Environ Health Stud
August 2024
Geochemical Exploration Department, Nuclear Materials Authority (NMA), Cairo, Egypt.
An important method for measuring radionuclide activity is alpha spectrometry. Ten soil samples were collected from the studied area. The activity concentrations of U and U in the collected soil samples ranged between 135 and 218 Bq kg and between 117 and 183 Bq kg, respectively.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!