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Cost Survey for Radon Daughter Control by Ventilation and Other Control Techniques: Volume II. Radon Emissions from Underground Uranium Mines.

Authors
Bloomster-CH; Jackson-PO; Dirks-JA; Reis-JW
Source
NTIS: PB/85-152940 :102 pages
Link
NIOSHTIC No.
10004340
Abstract
This study estimated (1) radon and radon daughter emissions from underground uranium mines; (2) the reduction in radon that would be released to the surface by using control techniques such as bulkheads, sealants, backfilling, and positive pressure ventilation; (3) the cost for radon and radon daughter removal from total exhaust air; and (4) total radon and radon daughter discharge for lower occupational exposure limits. For 13 large underground uranium mines, estimated yearly radon emissions from each ranged from 900 to 3,400 ci. The estimated age of air emitted from the mines ranged from 11 to 37 min. Potential radon removal methods for the total mine exhaust were evaluated. The cost of these methods was prohibitive. Diurnal and seasonal changes may affect radon emission over short periods of time, but do not affect the total emissions over the long run. Radon and radon daughter emissions would be little changed by increased ventilation requirements needed to achieve lower occupational exposure limits. The concentrations in the exhaust would be lower, but the total release would be the same.
Publication Date
19840101
Document Type
CP; Final Contract Report;
Fiscal Year
1984
NTIS Accession No.
PB85-152940
NTIS Price
A07
Identifying No.
OFR 2(2)-85
NIOSH Division
SRC;
Source Name
NTIS: PB/85-152940
Performing Organization
Battelle, Pacific N.w. Lab.
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