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RECORD NUMBER: 22 OF 57

OLS Field Name OLS Field Data
Main Title Guidance document for prepermit bioassay testing of low-level radioactive waste.
Author Anderson, S. L. ; Harrison, F. L. ;
CORP Author Lawrence Livermore National Lab., CA.;Department of Energy, Washington, DC.
Publisher Nov 90
Year Published 1990
Report Number UCRL-ID-105266 ;EPA-520/1-90-012; W-7405-ENG-48;
Stock Number DE91002995
Additional Subjects Aquatic Organisms ; Low-Level Radioactive Wastes ; Aquatic Ecosystems ; Bioassay ; Biological Radiation Effects ; Casks ; Environmental Exposure ; Genetics ; Marine Disposal ; Mortality ; Radiation Effects ; Radioactive Waste Management ; Risk Assessment ; Seas ; Toxicity ; EDB/052002 ; EDB/560152 ; Phenotype
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  DE91002995 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/13/1991
Collation 60p
Abstract
In response to the mandate of Public Law 92-532, the Marine Protection, Research, and Sanctuaries Act (MPRSA) of 1972, as amended, the Environmental Protection Agency (EPA) has developed a program to promulgate regulations and criteria to control the ocean disposal of radioactive wastes. The EPA seeks to understand the mechanisms for biological response of marine organisms to the low levels of radioactivity that may arise from the release of these wastes as a result of ocean-disposal practices. Such information will play an important role in determining the adequacy of environmental assessments provided to the EPA in support of any disposal permit application. Although the EPA requires packaging of low-level radioactive waste to prevent release during radiodecay of the materials, some release of radioactive material into the deep-sea environment may occur when a package deteriorates. Therefore, methods for evaluating the impact on biota are being evaluated. Mortality and phenotypic responses are not anticipated at the expected low environmental levels that might occur if radioactive materials were released from the low-level waste packages. Therefore, traditional bioassay systems are unsuitable for assessing sublethal effects on biota in the marine environment. The EPA Office of Radiation Programs (ORP) has had an ongoing program to examine sublethal responses to radiation at the cellular level, using cytogenetic end points. This technical guidance report represents prepermit bioassay procedures that potentially may be applicable to the assessment of effects from a mixture of radionuclides that could be released from a point source at the ocean bottom. Methodologies along with rationale and a discussion of uncertainty are presented for the sediment benthic bioassay protocols identified in this report.