Formerly utilized MED/AEC sites remedial action program. Radiological survey of the National Guard Armory at Washington Park, 52nd Street and Cottage Grove Avenue, Chicago, Illinois, September 19, 1977-October 11, 1978
A comprehensive radiological survey was conducted at the Illinois National Guard Armory at Washington Park in Chicago. This facility, used for uranium processing during the MED/AEC era, is now used as offices, classrooms, and storage and garage areas. Forty-two spots of contaminaton in nine rooms or areas exceeded the allowable limits for uranium as given in the ANSI Standard N13.12. In most instances, the contamination was found to be removable and available for transfer to other locations. However, under current use conditions, the potential for radiation exposure to occupants of this building from these sources of contamination is small. Concentrations of radon daughters in the air in the building, as measured by grab-sampling techniques, were less than the limit of 0.01 WL above background as given in the Surgeon General's Guidelines in 10 CFR 712. No long-lived radionuclides were detected in any air sample. Concentrations of radionuclides in soil samples collected around the facility indicated essentially background levels. The presumed maximum 50-year dose commitments from potential inhalation/ingestion of residual contamination were calculated to be 2.5 mrem to the lung, 0.51 mrem to the bone, 0.12 mrem to the kidney, and 0.031 mrem wholebody; each of these is less than 0.5% of the appropriate standards for an individual in an uncontrolled area. In order to rduce the potential for radiation exposure, remedial measures such as stabilization of the contamination in place would be applicable as a short-term measure. In order to reduce the risk in the event that building modifications take place in the future, health physics procedures and coverage are recommended. The long-term solution would involve dcontamination by removal of the radioactive residues from the 11 rooms or areas in the facility.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6445081
- Report Number(s):
- DOE/EV-0005/22; ANL-OHS/HP-83-100; ON: DE83007808
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
BUILDINGS
CONTAMINATION
RADIATION MONITORING
SOILS
CHICAGO
DAUGHTER PRODUCTS
DOSE RATES
MANHATTAN PROJECT
RADIATION HAZARDS
RADON
ELEMENTS
FEDERAL REGION V
FLUIDS
GASES
HAZARDS
HEALTH HAZARDS
ILLINOIS
ISOTOPES
MONITORING
NONMETALS
NORTH AMERICA
RARE GASES
USA
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