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Radon, bronchial morphometry, and occupational health.

Authors
Brenner-DJ
Source
Center for Radiological Research, Columbia University, New York, New York 1994 Mar; :1-30
Link
NIOSHTIC No.
00228267
Abstract
Estimates were made of quality factors (radiation weighting factors) for radon progeny, and the ratio of quality factors for radon progeny for miners and for home residents, based on data from the C3H10T1/2 oncogenic transformation system at linear energy transfers ranging from 3 to 475 kiloelectron volts/micrometer. The best estimate for the quality factor for radon progeny was significantly lower than those (20 to 25) currently used in estimating lung cancer mortality due to radon (10043922). The best estimate for home dwellers was around 10. The best estimate for the quality factor for home dwellers was about 13% more than for miners. Therefore, the effective K-factor to convert from effective dose/Working Level Month (WLM) in the home to effective dose/WLM in the mine would need to be increased by this factor. The author concludes that a dosimetrically based estimate of radon induced mortality would be about 35,000 per year in the United States, rather than a value of about 70,000 obtained using Hiroshima/Nagasaki based risk estimates and a quality factor of 20. The 35,000 value, while still larger than the miner based values of around 20,000, is much closer than the 70,000 figures. The author notes that the dosimetric and epidemiologically based risk estimates are partially reconciled by these results.
Keywords
NIOSH-Grant; Pulmonary-system-disorders; Epidemiology; Risk-analysis; Respiratory-system-disorders; Radiation-effects; Radon-daughters; Mine-workers; Lung-cancer; Occupational-exposure
Contact
Radiology Columbia University Health SCi 630 West 168Th St New York, NY 10032
CAS No.
10043-92-2
Publication Date
19940301
Document Type
Final Grant Report
Funding Amount
47769
Funding Type
Grant
Fiscal Year
1994
NTIS Accession No.
PB95-267902
NTIS Price
A03
Identifying No.
Grant-Number-R03-OH-02931
NIOSH Division
OEP
Priority Area
Pulmonary-system-disorders; Respiratory-system-disorders
Source Name
Center for Radiological Research, Columbia University, New York, New York
State
NY
Performing Organization
Columbia University New York, New York, New York
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