Radium-226, Lead-210 and Polonium-210 in Food, Water and Human Teeth
نویسندگان
چکیده
منابع مشابه
Why Polonium 210?
Presidents Message ........................................... 2 Inside the Beltway ........................................... 9 Editorial .......................................... 10 Committee Activities .......................................... 11 McBurney New CRCPD Director .......................................... 12 Chapter News .......................................... 13 New HPS Of...
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Due to the relatively high activity concentrations of (210)Po and (210)Pb that are found in tobacco and its products, cigarette smoking highly increases the internal intake of both radionuclides and their concentrations in the lung tissues. That might contribute significantly to an increase in the internal radiation dose and in the number of instances of lung cancer observed among smokers. Samp...
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The experimental accumulation of 210Po and 'lOPb from seawater alone and from seawater and food was studied in the laboratory with the benthic shrimp Lysrnata seticaudata. Shrimp accumulated both radionuclides from water for 21 d, reaching whole body concentration factors [CF = (Bq g' of shrimp wet wt)/(Bq ml-' filtered water)] of 139 k 28 for "OPo and 682 + 149 for 'l0Pb. When uptake was from ...
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210Po, a naturally occurring radioisotope that is ubiquitous in seawater, is especially enriched in proteinaceous tissues of marine organisms and may therefore be useful as a tracer of organic carbon flux in marine systems. Due in part to its biomagnification in marine food chains, 210Po provides the largest radiation dose to any organism under natural conditions. To better understand the exten...
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Background: Due to the presence of radioactive minerals such as monazite, the beach sand of the west coast of Kanyakumari exhibits high natural background radiation. Hair is a good indicator of radionuclides in the human body. An attempt is taken to measure the 210Po activity in human hair samples and the factors affecting it. Material and Methods: 210Po activity was analysed in 47 ind...
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ژورنال
عنوان ژورنال: Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)
سال: 1972
ISSN: 0021-5082,1882-6482
DOI: 10.1265/jjh.27.544