Environmental Radon Monitor

Details

• Personal Author:
  Droullard RF ; Holub, Robert F. ; Killoran LK
• Description:
  In order to measure outdoor ambient radon, the U. S. Bureau of Mines Denver Research Center designed and developed a continuous Environmental Radon Monitor (ERM) that is about 50 times more sensitive than most commercially available instruments. The ERM is based on the classic two filter method of measuring radon with the addition of aerosols to attach to the radon progeny to reduce plateout and thereby increasing sensitivity. The two filter method of measuring radon uses a chamber through which air is drawn. The air passes through the first filter at the inlet to remove any progeny and then through the second filter, as it leaves the chamber, to catch progeny generated in the chamber. An alpha or beta counter is positioned over the exit filter to measure the collected radon progeny activity and, thus, the amount of radon in the chamber. The ERM performed satisfactorily over a period of more than two years at Operable Units IV/V of the Denver Radium Superfund Site and is suitable for measuring low levels of radon around uranium and other mines, as well as in any environment where radon levels are of concern. [Description provided by NIOSH]
• Subjects:
  Aerosols Environmental Health Environmental Monitoring Environmental Pollution Filtration Occupational Health Safety Uranium
• Keywords:
  Aerosol-particles Aerosol-sampling Environmental-contamination Environmental-factors Environmental-health-monitoring Filters Sensitivity-testing Uranium-compounds
• Series:
  Mining Publications
• Publisher:
  U.S. Bureau of Mines
• Document Type:
  Text
• Genre:
  Proceedings ; Abstract
• Place as Subject:
  Colorado ; District of Columbia ; OSHA Region 3 ; OSHA Region 8
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DRC - Denver Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  28
• NIOSHTIC Number:
  nn:20024878
• Citation:
  Abstract Book, U.S. Department of the Interior Conference on the Environment and Safety, April 24-28, 1995. Washington, DC: U.S. Bureau of Mines, 1995 Apr; :28
• CAS Registry Number:
  Uranium (CAS RN 7440-61-1)
• Federal Fiscal Year:
  1995
• Peer Reviewed:
  False
• Source Full Name:
  U.S. Bureau of Mines
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0237c8b82bfa4e0dd8b6105356978a58bd590dc942993abf4ca64525045da76fc5108bc566fd72af164be2837a9a111d5b0eee9a0bddb4df3eda5efec844a773
• Download URL:
  https://stacks.cdc.gov/view/cdc/220851/cdc_220851_DS1.pdf
• File Type:
  [PDF - 292.27 KB ]