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NIOSH Testimony on Metal and Nonmetal Safety and Health, Radiation Standards by J. D. Millar, March 18, 1985.

Authors
NIOSH
Source
NIOSH 1985 Mar:9 pages
Link
NIOSHTIC No.
00196022
Abstract
This testimony presents the views of NIOSH with regard to specific issues raised by MSHA in a proposed rulemaking affecting metal and nonmetal mine safety and health, radiation standards. Results are included from epidemiological studies in which the relationship between lung cancer and exposure to radon daughters was examined. A quantitative risk assessment is also noted which will be considered in the development of a NIOSH recommended exposure limit for radon daughters. Specific issues addressed include risk assessment, particularly the relationship and the associated uncertainty between cumulative lifetime radon daughters exposure at or below 120 working level months and the lifetime risk of lung cancer or other biological response, and the methodology used to arrive at the risk relationship. The use of a nonthreshold model extrapolating from elevated exposure levels is considered along with modification of the risk relationship to account for cell repair or other factors. Questions concerning the latency period, cigarette smoking, exposure to thoron daughters, exposure to gamma radiation, and exposure to ore dusts are also addressed.
Keywords
NIOSH-Author; NIOSH-Testimony; Millar-J-D; Radiation-exposure; Radon-daughters; Mineral-dusts; Respiratory-system-disorders; Miners; Mining-industry; Lung-cancer;
Publication Date
19850318
Document Type
Testimony;
Fiscal Year
1985
NTIS Accession No.
PB91-152066
NTIS Price
A02
Priority Area
Asthma and Chronic Obstructive Pulmonary Disease; Disease and Injury; Respiratory-system-disorders;
Source Name
NIOSH, 9 pages
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