干旱区生态环境知识资源中心(Arid): Uncertainties associated with the definition of a hydrologic source term for the Nevada Test Site

Arid

DOI	10.2172/82425
报告编号	UCRL-ID--120322
来源ID	OSTI_ID: 82425
	Uncertainties associated with the definition of a hydrologic source term for the Nevada Test Site
	Smith, D.K.; Esser, B.K. [Lawrence Livermore National Lab., CA (United States)]; Thompson, J.L. [Los Alamos National Lab., NM (United States)]
英文摘要	The U.S. Department of Energy, Nevada Operations Office (DOE/NV) Environmental Restoration Division is seeking to evaluate groundwater contamination resulting from 30 years of underground nuclear testing at the Nevada Test Site (NTS). This evaluation requires knowledge about what radioactive materials are in the groundwater and how they are transported through the underground environment. This information coupled with models of groundwater flow (flow paths and flow rates) will enable predictions of the arrival of each radionuclide at a selected receptor site. Risk assessment models will then be used to calculate the expected environmental and human doses. The accuracy of our predictions depends on the validity of our hydrologic and risk assessment models and on the quality of the data for radionuclide concentrations in ground water at each underground nuclear test site. This paper summarizes what we currently know about radioactive material in NTS groundwater and suggests how we can best use our limited knowledge to proceed with initial modeling efforts. The amount of a radionuclide available for transport in groundwater at the site of an underground nuclear test is called the hydrologic source term. The radiologic source term is the total amount of residual radionuclides remaining after an underground nuclear test. The hydrologic source term is smaller than the radiologic source term because some or most of the radionuclide residual cannot be transported by groundwater. The radiologic source term has been determined for each of the underground nuclear tests fired at the NTS; however, the hydrologic source term has been estimated from measurements at only a few sites.
出版年	1995
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	54 ENVIRONMENTAL SCIENCES ; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE ; GROUND WATER ; RADIONUCLIDE MIGRATION ; NEVADA TEST SITE ; HYDROLOGY ; SOURCE TERMS ; UNDERGROUND EXPLOSIONS ; SORPTION ; ROCKS
URL	http://www.osti.gov/scitech/servlets/purl/82425
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/266120
推荐引用方式 GB/T 7714	Smith, D.K.,Esser, B.K. [Lawrence Livermore National Lab., CA ,Thompson, J.L. [Los Alamos National Lab., NM . Uncertainties associated with the definition of a hydrologic source term for the Nevada Test Site,1995.