Monitoring and control of radon hazards.
Franklin-JC; Musulin-CS; Bates-RC
Second International Mine Ventilation Congress, November 4-8, 1979, Reno, NV. P Mousset-Jones, ed., New York: American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc., 1980 Oct; :405-411
The U.S. Department of the Interior, Bureau of Mines, has developed a data acquisition system to continously monitor radon, working level, absolute pressure, temperature, relative humidity, and air velocity. Data have been taken in intake and exhaust drifts, working stopes, and sealed-off areas of positive and negative ventilated uranium mines. Radon emanation rates, ranging from 1.7 - 12.2 x 10(-14) ci/cm2/sec were determined in four mines. The ratios of short duration, primary fan shutdown time to radon normalization time were 1 to 2 and 1 to 4, respectively, for negatively and positively ventilated mines. Blasting and slushing caused radon increases of 160 and 67 percent, respectively.
Monitoring-systems; Mining-industry; Ventilation; Uranium-mining; Exhaust-ventilation; Radioactive-particles; Radon-daughters
Second International Mine Ventilation Congress, November 4-8, 1979, Reno, NV