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in subjects: "Carbon 14"  
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Transport Models for Radioactive Carbon Dioxide at RWMC

Description: Radioactive carbon dioxide (formed by oxidation of carbon-14) is a highly mobile, radioactive contaminant released from solid wastes buried at the Subsurface Disposal Area (SDA) at the Radioactive Waste Management Complex (RWMC) at the Idaho National Engineering and Environmental Laboratory (INEEL). Radioactive CO2 is chemically active in the environment, volatile, water soluble, and subject to adsorption on solids. For this reason, its fate must be understood and controlled to meet radiologica… more
Date: December 1, 2001
Creator: Hull, Laurence Charles & Hohorst, Frederick August
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Determination of the Prebomb Southern (Antartic) Ocean Radiocarbon in Organic Matter

Description: The Southern Hemisphere is an important and unique region of the world's oceans for water-mass formation and mixing, upwelling, nutrient utilization, and carbon export. In fact, one of the primary interests of the oceanographic community is to decipher the climatic record of these processes in the source or sink terms for Southern Ocean surface waters in the CO{sub 2} balance of the atmosphere. Current coupled ocean-atmosphere modeling efforts to trace the input of CO{sub 2} into the ocean impl… more
Date: February 26, 2001
Creator: Guilderson, T. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Isotopic Tracers for Delineating Non-Point Source Pollutants in Surface Water

Description: This study tested whether isotope measurements of surface water and dissolved constituents in surface water could be used as tracers of non-point source pollution. Oxygen-18 was used as a water tracer, while carbon-14, carbon-13, and deuterium were tested as tracers of DOC. Carbon-14 and carbon-13 were also used as tracers of dissolved inorganic carbon, and chlorine-36 and uranium isotopes were tested as tracers of other dissolved salts. In addition, large databases of water quality measurement… more
Date: March 1, 2001
Creator: Davisson, M L
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Assessing the impact of hazardous constituents on the mobilization, transport, and fate of radionuclides in RCRA waste disposal units.

Description: This report discusses the impact that hazardous organic chemical constituents could have on the mobilization, transport, and fate of radionuclides in disposal units regulated by the Resource Conservation and Recovery Act (RCRA). The effect on a radionuclide's distribution coefficient (K{sub d}) is used as an indicator. Many factors can affect K{sub d}, including the chemical form of the radionuclide, pH of the leachate, nature of the organic constituents, porosity of the soil, amount of water i… more
Date: August 29, 2001
Creator: Yu, C.; Orlandini, K. A.; Cheng, J. J. & Biwer, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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