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Title: Radon-hazard potential of Utah

Radon is a naturally occurring radioactive gas formed by decay of uranium, and occurs in nearly all geologic materials. Although radon has been shown to be a significant cause of lung cancer in miners, the health hazard from accumulation of radon gas in buildings has only recently been recognized. Indoor-radon hazards depend on both geologic and non-geologic factors. Although non-geologic factors such as construction type, weather, and lifestyles are difficult to measure, geologic factors such as uranium concentration, soil permeability, and depth to ground water can be quantified. Uranium-enriched geologic materials, such as black shales, marine sandstones, and certain granitic, metamorphic, and volcanic rocks, are generally associated with a high radon-hazard potential. Impermeable soil or shallow ground water impedes radon movement and is generally associated with a low radon-hazard potential. A numerical rating system based on these geologic factors has been developed to map radon-hazard potential in Utah. A statewide map shows that the radon-hazard potential of Utah is generally moderate. Assessments of hazard potential from detailed field investigations correlate well with areas of this map. Central Utah has the highest radon-hazard potential, primarily due to uranium-enriched Tertiary volcanic rocks. The radon-hazard potential of eastern Utah is moderate to high,more » but is generally restricted by low uranium levels. Western Utah, where valley basins with impermeable soils and shallow ground water are common, has the lowest radon-hazard potential.« less
Authors:
;  [1]
  1. (Utah Geological Survey, Salt Lake City, UT (United States))
Publication Date:
OSTI Identifier:
5430939
Report Number(s):
CONF-9305259--
Journal ID: ISSN 0016-7592; CODEN: GAAPBC
Resource Type:
Conference
Resource Relation:
Journal Name: Geological Society of America, Abstracts with Programs; (United States); Journal Volume: 25:5; Conference: 89. annual meeting of the Cordilleran Section and the 46th annual meeting of the Rocky Mountain Section of the Geological Society of America (GSA), Reno, NV (United States), 19-21 May 1993
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; GEOLOGIC DEPOSITS; NATURAL RADIOACTIVITY; RADON; RADIOECOLOGICAL CONCENTRATION; RISK ASSESSMENT; UTAH; HEALTH HAZARDS; RADIATION MONITORING; RADIONUCLIDE MIGRATION; DEVELOPED COUNTRIES; ECOLOGICAL CONCENTRATION; ELEMENTS; ENVIRONMENTAL TRANSPORT; FLUIDS; GASES; HAZARDS; MASS TRANSFER; MONITORING; NONMETALS; NORTH AMERICA; RADIOACTIVITY; RARE GASES; USA 540230* -- Environment, Terrestrial-- Radioactive Materials Monitoring & Transport-- (1990-); 580000 -- Geosciences