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A Ventilation Study With Pressure Cycling in a Kerr-McGee Mine At Ambrosia Lake, New Mexico.

Authors
Cleveland-JE; Shreve-JD; Moreno-F
Source
MISSING :62 pages
Link
NIOSHTIC No.
10002720
Abstract
The major health concern for uranium miners is the release of radon gas and the resultant ingrowth of the short-lived daughters in the mine atmosphere. Present methods of control are the utilization of mine ventilation systems for dilution and control of ingrowth time to maintain working levels below those set by regulations. This study examines pressure cycling effects on the radon emanation. The mechanical ventilation systems were altered to allow pressure changes throughout the mine to increase radon influx during the off shifts and thus deplete the sources of radon gas. Continuous radon working level and environmental monitors, developed by the Bureau of Mines, were employed to monitor radiation and physical parameters in the mine workings. The mine ventilation system was then varied to induce radon flows during off shifts, thus depleting the radon sources during normal production shifts. Electrostatic precipitators were also tested to determine radon daughter collection efficiencies. Both radon and radon daughter concentrations were monitored and evaluated. Major problems were found in the simple mechanical operation of cleaning these units.
Publication Date
19820101
Document Type
CP; Final Contract Report;
Fiscal Year
1982
NTIS Accession No.
NTIS Price
Identifying No.
OFR 17-83
NIOSH Division
SRC;
Source Name
MISSING
State
NM;
Performing Organization
Kerr-McGee Nuclear Corp.
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