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NIOSH Testimony - Ionizing Radiation Standards for Metal and Nonmetal Mines, August 13, 1987.

Authors
NIOSH
Source
NIOSH 1987 Aug:18 pages
Link
NIOSHTIC No.
00173093
Abstract
Recommendations were offered for protecting workers against the health effects of ionizing radiation in metal and nonmetal mines. Available data demonstrating such health effects was reviewed and evidence supporting the technical feasibility of reducing the current Mine Safety and Health Administration (MSHA) standard was presented. Five recent studies indicated a significant increase in lung cancer rates associated with radon progeny exposure in underground mines. Additional studies indicated an exposure/response relationship in uranium miners. The influence of smoking on the association between radon progeny exposure and lung cancer was cited. Evidence has indicated that exposure to radon progeny carries a potential risk of developing occupationally induced lung cancer. Risk assessment data supported the conclusion that miners with the same characteristics as the United States Public Health Service uranium miners cohort and who accrue a cumulative occupational exposure of 120 working level months, would have a lung cancer excess lifetime risk of about 35 to 40 lung cancer deaths per 1000 exposed miners. Modern mining methods using dilution ventilation as well as bulkheading and backfilling techniques make it possible to achieve substantial reductions in the cumulative exposure to radon progeny. Information was provided on sampling strategy, control technology, ventilation systems, respirators, and medical surveillance programs.
Keywords
NIOSH-Author; NIOSH-Testimony; NIEMEIER-R-W; Radon-daughters; Mining-industry; Inhalants; Radiation-exposure; Safety-practices; Worker-health; Lung-disease; Respiratory-system-disorders;
Publication Date
19870813
Fiscal Year
1987
NTIS Accession No.
PB88-128335
NTIS Price
A03
Priority Area
Asthma and Chronic Obstructive Pulmonary Disease; Disease and Injury; Respiratory-system-disorders;
Source Name
NIOSH, 18 pages, 45 references
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