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1983 27 Table 6. Impurities in RU at Hanford

31 Table 7. Promethium-147 Sampling Frequency

36 Table 8. Number of Workers Monitored for Mixed Fission Products, July 1, 1972, to December 31,

1990 39 Table 9. Number of Workers Monitored In Vivo for Cs-137.39 Table 10. Number of Workers with Plutonium In-Vitro or In- Vivo Monitoring Data by Year

43 Table 11. Positive Plutonium Bioassay Results by Year

43 Table 12. Number of Workers Monitored for Am-241 by Area.48 Table 13. Summary of Incidents Reviewed

53 Effective Date: September 30,

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71 NOTICE: This report has been reviewed for Privacy Act information and has been cleared for distribution. However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker Health for factual accuracy or applicability within the requirements of

42 CFR 82. LIST OF ACRONYMS AND ABBREVIATIONS Advisory Board or Board Advisory Board on Radiation and Worker Health AEC Atomic Energy Commission ARHCO Atlantic Richfield Hanford Company BNW Battelle Northwest CATI Computer Assisted Telephone Interview c/m or cpm counts per minute CSMO Central Scrap Management Office DNFSB Defense Nuclear Facilities Safety Board DOD Department of Defense DOE Department of Energy DPM disintegrations per minute FFTF Fast Flux Test Facility FP Fission Products FRG Federal Republic of Germany FY Fiscal year GSD geometric standard deviation HEPA High-Efficiency Particulate Air HEDL Hanford Engineering Development Laboratory HEU highly enriched uranium HT tritiated hydrogen gas HTO tritiated water IMBA Integrated Modules for Bioassay Analysis kgs kilograms L liter ?Ci/lb microcurie per pound MDA minimum detectable activity MeV million electron volts MFP Mixed Fission Product mL milliliter mrem millirem Effective Date: September 30,

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71 This report has been reviewed for Privacy Act information and has been cleared for distribution. However, this report is pre-decisional and has not been reviewed by the Advisory Board on Radiation and Worker Health for factual accuracy or applicability within the requirements of

42 CFR 82. NOTICE: mR/hr milliroentgen per hour nCi nanocurie NIOSH National Institute for Occupational Safety and Health NOCTS NIOSH OCAS Claims Tracking System OBT organically bound tritium ORAUT Oak Ridge Associated Universities Team pCi/d picocurie per day PFP Plutonium Finishing Plant PNNL Pacific Northwest National Labs ppb parts per billion ppm parts per million PUREX Plutonium-Uranium Extraction R&

D research and development RCRA Resource Conservation and Recovery Act REX Radiological EXposure (Hanford exposure database) RM Radiation Monitoring RTD Resistance Temperature Detector RWP Radiation Work Permit SC&

A S. Cohen and Associates SEC Special Exposure Cohort SR Savannah River SRDB Site Research Database SRS Savannah River Site TBD Technical Basis Document TLD thermoluminescent dosimeter TOFDL Thorium Oxide Fuel Development Laboratory UST U.S. Testing Effective Date: September 30,

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71 NOT........