11 Matching Results

Search Results

Advanced search parameters have been applied.
in subjects: "Years Living Radioisotopes 540220* -- Environment, Terrestrial-- Chemicals Monitoring & Transport-- 1990-"  
Results: 1 - 11
open access

Comparative plant uptake and microbial degradation of trichloroethylene in the rhizospheres of five plant species-- implications for bioremediation of contaminated surface soils

Description: The objective of this study was to collect data that would provide a foundation for the concept of using vegetation to enhance in situ bioremediation of contaminated surface soils. Soil and vegetation (Lespedeza cuneata, Paspalum notatum, Pinus taeda, and Solidago sp.) samples from the Miscellaneous Chemicals Basin (MCB) at the Savannah River Site were used in tests to identify critical plant and microbiological variables affecting the fate of trichloroethylene (TCE) in the root zone. Microbiol… more
Date: January 1, 1992
Creator: Anderson, T.A. (Tennessee Univ., Knoxville, TN (United States)) & Walton, B.T. (Oak Ridge National Lab., TN (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of Fenton's reagent as a pretreatment step in biological degradation of polyaromatic hydrocarbons

Description: Fenton's reagent (H{sub 2}O{sub 2} and Fe{sup ++}) has been used for chemical oxidation of numerous organic compounds in water treatment schemes. In this study, the Institute of Gas Technology (IGT) applied Fenton's treatment to polynuclear aromatic hydrocarbons (PAHs) and PAH-contaminated soils. Fenton's treatment was very reactive with PAHs, causing rapid modification of the parental compounds to oxidized products and complete degradation to CO{sub 2}. This treatment was more effective on che… more
Date: January 1, 1990
Creator: Kelley, R.L.; Gauger, W.K. & Srivastava, V.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Geochemical and physical properties of soils and shallow sediments at the Savannah River Site

Description: A program to characterize the geochemical and physical properties of the unimpacted soils and shallow sediments at the Savannah River Site (SRS) has been completed. The maximum, minimum, median, standard deviation, and mean values for metals, radionuclides, inorganic anions, organic compounds, and agricultural indicator parameters are summarized for six soil series that were identified as representative of the 29 soil series at SRS. The soils from unimpacted areas of SRS are typical of soils fo… more
Date: August 31, 1990
Creator: Looney, B. B.; Eddy, C. A.; Ramdeen, M.; Pickett, J. (Savannah River Lab., Aiken, SC (USA)); Rogers, V. (Soil Conservation Service, Aiken, SC (USA). Savannah River Site Savannah River Lab., Aiken, SC (USA)); Scott, M. T. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

F-Area Seepage Basins groundwater monitoring report

Description: During fourth quarter 1992, the groundwater at the F-Area Seepage Basins (FASB) was monitored in compliance with South Carolina Hazardous Waste Management Regulations, R61-79.265, Subpart F. Eighty-five wells provided samples from the three hydrostratigraphic units that make up the uppermost aquifer beneath the FASB. A detailed description of the uppermost aquifer is included in the Resource Conservation and Recovery Act Part B Post-Closure Care Permit Application for the F-Area Hazardous Waste… more
Date: March 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

H-Area Seepage Basins groundwater monitoring report

Description: During fourth quarter 1992, the groundwater at the H-Area Seepage Basins (HASB) was monitored in compliance with South Carolina Hazardous Waste Management Regulations, R61-79.265, Subpart F. Samples were collected from 130 wells that monitor the three separate hydrostratigraphic units that make up the uppermost aquifer beneath the HASB. A detailed description of the uppermost aquifer is included in the Resource Conservation and Recovery Act Part B Post-Closure Care Permit Application for the H-… more
Date: March 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mixed Waste Management Facility (MWMF) groundwater monitoring report

Description: During third quarter 1992, 12 constituents exceeded the US Environmental Protection Agency Primary Drinking Water Standards (PDWS) in one or more groundwater samples from monitoring wells at the Mixed Waste Management Facility and adjacent facilities. Tritium and trichloroethylene were the most widespread constituents: 57 (48%) and 23 (19%) of the 119 monitoring wells contained elevated tritium and trichloroethylene levels, respectively. Elevated constituents were found primarily in Aquifer Zon… more
Date: December 1, 1992
Creator: Thompson, C.Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

H-Area Seepage Basins groundwater monitoring report

Description: During second quarter 1992, tritium, nitrate, nonvolatile beta, total alpha-emitting radium (radium-224 and radium-226), gross alpha, mercury, lead, tetrachloroethylene, arsenic, and cadmium exceeded the US Environmental Protection Agency Primary Drinking Water Standards (PDWS) in groundwater samples from monitoring wells at the H-Area Seepage Basins (HASB) at the Savannah River Plant. This report gives the results of the analyses of groundwater from the H-Area Seepage Basin.
Date: September 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Carbon and nitrogen isotope studies in an arctic ecosystem

Description: This proposal requests funding for the completion of our current ecological studies at the MS-117 research site at Toolik Lake, Alaska. We have been using a mix of stable and radioisotope techniques to assess the fluxes of carbon and nitrogen within the ecosystem and the implications for long-term carbon storage or loss from the tundra. Several tentative conclusions have emerged from our study including: Tundra in the foothills is no longer accumulating carbon. Surficial radiocarbon abundances … more
Date: January 1, 1989
Creator: Schell, D.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

H-Area Seepage Basins groundwater monitoring report, third quarter 1992

Description: During third quarter 1992, the groundwater at the H-Area Seepage Basins (HASB) was monitored in compliance with South Carolina Hazardous Waste Management Regulations, R61-79.265, Subpart F. One hundred thirty wells provided samples from the three separate hydrostratigraphic units that make up the uppermost aquifer beneath the HASB. A detailed description of the uppermost aquifer is included in the Resource Conservation and Recovery Act Part B Post-Closure Care Permit Application for the H-Area … more
Date: December 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

F- and H-Area Sewage Sludge Application Sites groundwater monitoring report

Description: Samples from the four wells at the F-Area Sewage Sludge Application Site (FSS wells) and the three wells at the H-Area Sewage Sludge Application Site (HSS wells) are analyzed quarterly for constituents as required by South Carolina Department of Health and Environmental Control Construction Permit 12,076 and, as requested, for other constituents as part of the Savannah River Site Groundwater Monitoring Program. Annual analyses for other constituents, primarily metals, also are required by the p… more
Date: April 1, 1993
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Patterns of sediment accumulation in Watts Bar Reservoir based on sup 137 Cesium

Description: The US Department of Energy has recently undertaken an environmental restoration program designed to achieve remediation of hazardous materials released from the Oak Ridge Reservation (ORR). The distribution of {sup 137}Cs was investigated in sediments from Watts Barr Reservoir and the Clinch River as a possible marker for other contaminants released from the ORR. We have performed additional analyses on the data gathered for this study to investigate possible relationships between {sup 137}Cs … more
Date: January 1, 1991
Creator: Brandt, Craig C.; Rose, Kenneth A.; Cook, Robert B.; Dearstone, Krista C.; Brenkert, Antoinette L. & Olsen, Curtis R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
Back to Top of Screen