Derivation of strontium-90 and cesium-137 residual radioactive material guidelines for the Laboratory for Energy-Related Health Research, University of California, Davis
Residual radioactive material guidelines for strontium-90 and cesium-137 were derived for the Laboratory for Energy-Related Health Research (LEHR) site in Davis, California. The guideline derivation was based on a dose limit of 100 mrem/yr. The US Department of Energy (DOE) residual radioactive material guideline computer code, RESRAD, was used in this evaluation; this code implements the methodology described in the DOE manual for implementing residual radioactive material guidelines. Three potential site utilization scenarios were considered with the assumption that, for a period of 1,000 years following remedial action, the site will be utilized without radiological restrictions. The defined scenarios vary with regard to use of the site, time spent at the site, and sources of food consumed. The results of the evaluation indicate that the basic dose limit of 100 mrem/yr will not be exceeded within 1,000 years for either strontium-90 or cesium-137, provided that the soil concentrations of these radionuclides at the LEHR site do not exceed the following levels: 71,000 pCi/g for strontium-90 and 91 pCi/g for cesium-137 for Scenario A (researcher: the expected scenario); 160,000 pCi/g for strontium-90 and 220 pCi/g for cesium-137 for Scenario B (recreationist: a plausible scenario); and 37 pCi/g for strontium-90 and 32 pCi/g for cesium-137 for Scenario C (resident farmer ingesting food produced in the contaminated area: a plausible scenario). The derived guidelines are single-radionuclide guidelines and are linearly proportional to the dose limit used in the calculations. In setting the actual strontium-90 and cesium-137 guidelines for the LEHR site, DOE will apply the as low as reasonably achievable (ALARA) policy to the decision-making process, along with other factors such as whether a particular scenario is reasonable and appropriate.
- Research Organization:
- Argonne National Lab., IL (United States). Environmental Assessment and Information Sciences Div.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6575612
- Report Number(s):
- ANL/EAIS/TM-94; ON: DE93013113
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
CALIFORNIA
LABORATORIES
CESIUM 137
MAXIMUM PERMISSIBLE DOSE
SAFEGUARD REGULATIONS
REMEDIAL ACTION
STRONTIUM 90
ALARA
RADIATION DOSE DISTRIBUTIONS
RADIATION DOSES
RADIATION HAZARDS
RADIATION PROTECTION
RISK ASSESSMENT
US DOE
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
DEVELOPED COUNTRIES
DOSES
EVEN-EVEN NUCLEI
HAZARDS
HEALTH HAZARDS
INTERMEDIATE MASS NUCLEI
ISOTOPES
NATIONAL ORGANIZATIONS
NORTH AMERICA
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
REGULATIONS
SAFETY STANDARDS
STANDARDS
STRONTIUM ISOTOPES
US ORGANIZATIONS
USA
YEARS LIVING RADIOISOTOPES
540230* - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (1990-)
054000 - Nuclear Fuels- Health & Safety