Record Display for the EPA National Library Catalog

RECORD NUMBER: 29 OF 37

Main Title Radiological surveys of Idaho phosphate ore processing : the wet process plant /
Author Eadie, Gregory G.
Other Authors
Author Title of a Work
Bernhardt, David E.
Boysen, George A.
CORP Author United States. Environmental Protection Agency. Office of Radiation Programs. Las Vegas Facility.
Publisher Office of Radiation Programs, Las Vegas Facility, U.S. Environmental Protection Agency,
Year Published 1978
Report Number ORP-LV-78-1; EPA/ORP-LV-78-1; PB-283 469
Stock Number PB-283 469
OCLC Number 04940343
Subjects Phosphate rock--Idaho ; Ore-dressing plants--Safety measures
Additional Subjects Phosphate deposits ; Mining ; Processing ; Natural radioactivity ; Environmental impacts ; Radiation monitors ; Site surveys ; Radioactive wastes ; Industrial wastes ; Radon ; Dust ; Gamma rays ; Sampling ; Air pollution ; Particle size ; Water pollution ; Lead isotopes ; Polonium ; Construction materials ; Slags ; Aggregates ; Solid waste disposal ; Reclamation ; Recycling ; Filters ; Roasting ; Phosphate industry ; Mine wastes ; Baseline measurements ; Air pollution sampling ; Water pollution sampling ; Road materials ; Indoor air pollution ; Pocatello(Idaho)
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000ZEER.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD  EPA ORP-LV-78-1 Headquarters Library/Washington,DC 08/20/2014
ELBD ARCHIVE EPA ORP-LV-78-1 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD RPS EPA ORP-LV-78-1 repository copy AWBERC Library/Cincinnati,OH 11/21/2017
ESAD  EPA 1358 Region 10 Library/Seattle,WA 09/27/1996
NTIS  PB-283 469 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 81 pages : charts, plan ; 28 cm
Abstract
Radiological surveys conducted at the J. R. Simplot's Wet Process Plant in Pocatello, Idaho indicate slightly elevated ambient levels of natural radioactivity. Compared to an estimated natural background annual dose equivalent rate of about 79 mrem, net gamma dose rates ranged from 42 mrem in general plant areas to 152 mrem per work year (2000 hours) on the ore piles. Ambient radon-222 concentrations, ranging from 0.14 to 1.9 pCi/l, were measured in several work areas, with polonium-210 and radium-226 being the most predominant radionuclides of the natural uranium decay series. Particle size characterization indicates roughly 52 percent of the arithmetic total radioactivity is associated with the particle size fraction less than one micrometer equivalent aerodynamic diameter. Stack sampling results also show that appreciable concentrations of the naturally-occurring radionuclides are being discharged into the local environs. In general, the dose estimates and the interpretation of results have been oriented toward evaluating the maximum potential impact of the plant on the environment; however, no attempt has been made to determine the annual average dose to workers within the plant from all exposure pathways.
Notes
"April 1978." "ORP-LV-78-1." Cover title.
Contents Notes
Radiological surveys conducted at the J.R. Simplot's Wet Process Plant in Pocatello, Idaho indicate slightly elevated ambient levels of natural radioactivity. Compared to an estimated natural background annual dose equivalent rate of about 79 mrem, net gamma dose rates ranged from 42 mrem in general plant areas to 152 mrem per work year (2000 hours) on the ore piles. Ambient radon-222 concentrations, ranging from 0.14 to 1.9 pCi/l, were measured in several work areas, with polonium-210 and radium-226 being the most predominant radionuclides of the natural uranium decay series. Particle size characterization indicates roughly 52 percent of the arithmetic total radioactivity is associated with the particle size fraction less than one micrometer equivalent aerodynamic diameter. Stack sampling results also show that appreciable concentrations of the naturally-occurring radionuclides are being discharged into the local environs. In general, the dose estimates and the interpretation of results have been oriented toward evaluating the maximum potential impact of the plant on the environment; however, no attempt has been made to determine the annual average dose to workers within the plant from all exposure pathways.