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2006 Toxic Chemical Release Inventory Report for the Emergency Planning and Community Right-to-Know Act of 1986, Title III, Section 313
For reporting year 2006, Los Alamos National Laboratory (LANL or the Laboratory) submitted Form R reports for lead as required under the Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313. No other EPCRA Section 313 chemicals were used in 2006 above the reportable thresholds. This document was prepared to provide a description of the evaluation of EPCRA Section 313 chemical use and threshold determinations for LANL for calendar year 2006, as well as to provide background information about data included on the Form R reports. Section 313 of EPCRA specifically requires facilities to submit a Toxic Chemical Release Inventory Report (Form R) to the U.S. Environmental Protection Agency (EPA) and state agencies if the owners and operators manufacture, process, or otherwise use any of the listed toxic chemicals above listed threshold quantities. EPA compiles this data in the Toxic Release Inventory database. Form R reports for each chemical over threshold quantities must be submitted on or before July 1 each year and must cover activities that occurred at the facility during the previous year. In 1999, EPA promulgated a final rule on persistent bioaccumulative toxics (PBTs). This rule added several chemicals to the EPCRA Section 313 list of toxic …
Date:
December 12, 2007
Creator:
Ecology and Air Quality Group & Hinojosa, Hector
Object Type:
Report
System:
The UNT Digital Library
Acid Catalysis in Basic Solution: A Supramolecular Host PromotesOrthoformate Hydrolysis
Though many enzymes can promote chemical reactions by tuning substrate properties purely through the electrostatic environment of a docking cavity, this strategy has proven challenging to mimic in synthetic host-guest systems. Here we report a highly-charged, water soluble, metal-ligand assembly with a hydrophobic interior cavity that thermodynamically stabilizes protonated substrates and consequently catalyzes the normally acidic hydrolysis of orthoformates in basic solution, with rate accelerations of up to 890-fold. The catalysis reaction obeys Michaelis-Menten kinetics, exhibits competitive inhibition, and the substrate scope displays size selectivity consistent with the constrained binding environment of the molecular host. Synthetic chemists have long endeavored to design host molecules capable of selectively binding slow-reacting substrates and catalyzing their chemical reactions. While synthetic catalysts are often site-specific and require certain properties of the substrate to insure catalysis, enzymes are often able to modify basic properties of the bound substrate such as pK{sub a} in order to enhance reactivity. Two common motifs used by nature to activate otherwise unreactive compounds are the precise arrangement of hydrogen-bonding networks and electrostatic interactions between the substrate and adjacent residues of the protein. Precise arrangement of hydrogen bonding networks near the active sites of proteins can lead to well-tuned pK{sub a}-matching, …
Date:
December 12, 2007
Creator:
Pluth, Michael D.; Bergman, Robert G. & Raymond, Kenneth N.
Object Type:
Article
System:
The UNT Digital Library
Advanced Materials and Processes for High Energy Resolution Room Temperature Gamma Ray Spectrometers
A significant amount of progress has been achieved in the development of the novel vacuum distillation method described in the proposal. The process for the purification of Te was fully developed and characterized in a series of trials. The purification effect was confirmed with GDMS sample analysis and indicates the process yields very high purity Te metal. Results of this initial process study have been submitted for publication in the Proceedings of the SPIE and will be presented on August 28, 2007 at the SPIE Optics and Photonics 2007 conference in San Diego, CA. Concurrent to the development of the Te process, processes for the purification of Cd, Zn, and Mn have also progressed. The development of the processes for Cd and Zn are nearly complete, while the development of the process for Mn is still in its infancy. It is expected that a full characterization of the Cd process will be completed within the next quarter, followed by Zn. Parallel to those characterization studies, efforts will be made to further develop the Mn purification process. Zone melting work for Te and Cd has also been efforted as per the project work schedule. Initial trials have been completed and the …
Date:
December 12, 2007
Creator:
McGregor, Douglas S.
Object Type:
Report
System:
The UNT Digital Library
Aligned vertical fractures, HTI reservoir symmetry, and Thomsenseismic anisotropy parameters for polar media
Sayers and Kachanov (1991) defined crack-influence parameters that are shown to be directly related to Thomsen (1986) weak-anisotropy seismic parameters for fractured reservoirs when the crack/fracture density is small enough. These results are then applied to the problem of seismic wave propagation in polar (i.e., non-isotropic) reservoirs having HTI seismic wave symmetry due to the presence of aligned vertical fractures and resulting in azimuthal seismic wave symmetry at the earth's surface. The approach presented suggests one method of inverting for fracture density from wave-speed data. It is also observed that the angular location {theta}{sub ex} of the extreme value (peak or trough) of the quasi-SV-wave speed for VTI occurs at an angle determined approximately by the formula tan{sup 2} {theta}{sub ex} {approx_equal} tan {theta}{sub m} = [(c{sub 33} - c{sub 44})/(c{sub 11}-c{sub 44})]{sup 1/2}, where {theta}{sub m} is an angle determined directly (as shown) from the c{sub ij} elastic stiffnesses, whenever these are known from either quasi-static or seismic wave measurements. Alternatively, {theta}{sub ex} is given in terms of the Thomsen seismic anisotropy parameters by tan {theta}{sub ex} {approx_equal} ([v{sub p}{sup 2}(0)-v{sub s}{sup 2}(0)]/[(1 + 2{epsilon})v{sub p}{sup 2}(0)-v{sub s}{sup 2}(0)]){sup 1/4}, where {epsilon} = (c{sub 11}-c{sub 33})/2c{sub 33}, v{sub p}{sup …
Date:
December 12, 2007
Creator:
Berryman, James G.
Object Type:
Article
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 109, No. 166, Ed. 1 Wednesday, December 12, 2007
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 12, 2007
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Americans with Disabilities Act: Supreme Court Decisions
The Americans with Disabilities Act (ADA) provides broad nondiscrimination protection for individuals with disabilities in employment, public services, public accommodations and services operated by private entities, transportation, and telecommunications. Enacted in 1990, the ADA is a civil rights statute that has as its purpose “to provide a clear and comprehensive national mandate for the elimination of discrimination against individuals with disabilities.” It has been the subject of numerous lower court decisions, and the Supreme Court has decided 20 ADA cases, most recently United States v. Georgia. This report examines the Supreme Court decisions on the ADA.
Date:
December 12, 2007
Creator:
Jones, Nancy Lee
Object Type:
Report
System:
The UNT Digital Library
Application Process for Seeking Section 501(c)(3) Tax Exempt Status
Charities and other entities seeking tax attempt status as organizations must apply to the Internal Revenue Service. This report provides an overview of the application process.
Date:
December 12, 2007
Creator:
Lunder, Erika
Object Type:
Report
System:
The UNT Digital Library
ATLAS Inner Detector Event Data Model
The data model for event reconstruction (EDM) in the Inner Detector of the ATLAS experiment is presented. Different data classes represent evolving stages in the reconstruction data flow, and specific derived classes exist for the sub-detectors. The Inner Detector EDM also extends the data model for common tracking in ATLAS and is integrated into the modular design of the ATLAS high-level trigger and off-line software.
Date:
December 12, 2007
Creator:
ATLAS; Akesson, F.; Costa, M. J.; Dobos, D.; Elsing, M.; Fleischmann, S. et al.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 87, No. 11, Ed. 1 Wednesday, December 12, 2007
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 12, 2007
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Burleson Star (Burleson, Tex.), Vol. 43, No. 23, Ed. 1 Wednesday, December 12, 2007
Semiweekly newspaper from Burleson, Texas that includes local, state, and national news along with advertising.
Date:
December 12, 2007
Creator:
Rayburn, Michael
Object Type:
Newspaper
System:
The Portal to Texas History
CHANGES IN 137 CS CONCENTRATIONS IN SOIL AND VEGETATION ON THE FLOODPLAIN OF THE SAVANNAH RIVER OVER A 30 YEAR PERIOD
{sup 137}Cs released during 1954-1974 from nuclear production reactors on the Savannah River Site, a US Department of Energy nuclear materials production site in South Carolina, contaminated a portion of the Savannah River floodplain known as Creek Plantation. {sup 137}Cs activity concentrations have been measured in Creek Plantation since 1974 making it possible to calculate effective half-lives for {sup 137}Cs in soil and vegetation and assess the spatial distribution of contaminants on the floodplain. Activity concentrations in soil and vegetation were higher near the center of the floodplain than near the edges as a result of frequent inundation coupled with the presence of low areas that trapped contaminated sediments. {sup 137}Cs activity was highest near the soil surface, but depth related differences diminished with time as a likely result of downward diffusion or leaching. Activity concentrations in vegetation were significantly related to concentrations in soil. The plant to soil concentration ratio (dry weight) averaged 0.49 and exhibited a slight but significant tendency to decrease with time. The effective half-lives for {sup 137}Cs in shallow (0-7.6 cm) soil and in vegetation were 14.9 (95% CI = 12.5-17.3) years and 11.6 (95% CI = 9.1-14.1) years, respectively, and rates of {sup 137}Cs …
Date:
December 12, 2007
Creator:
Paller, M.; Jannik, T. & Fledderman, P.
Object Type:
Article
System:
The UNT Digital Library
Cherokeean Herald (Rusk, Tex.), Vol. 158, No. 42, Ed. 1 Wednesday, December 12, 2007
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
December 12, 2007
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 112, No. 50, Ed. 1 Wednesday, December 12, 2007
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 12, 2007
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 26, No. 45, Ed. 1 Wednesday, December 12, 2007
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
December 12, 2007
Creator:
Monk, Devin
Object Type:
Newspaper
System:
The Portal to Texas History
DEPARTMENT OF ENERGY SOIL AND GROUNDWATER SCIENCE AND TECHNOLOGY NEEDS, PLANS AND INITIATIVES
This paper presents the process used by the Department of Energy (DOE) Environmental Management (EM) Program to collect and prioritize DOE soil and groundwater site science and technology needs, develop and document strategic plans within the EM Engineering and Technology Roadmap, and establish specific program and project initiatives for inclusion in the EM Multi-Year Program Plan. The paper also presents brief summaries of the goals and objectives for the established soil and groundwater initiatives.
Date:
December 12, 2007
Creator:
Aylward, B; V. ADAMS, V; G. M. CHAMBERLAIN, G & T. L. STEWART, T
Object Type:
Article
System:
The UNT Digital Library
Egypt: Background and U.S. Relations
This report provides an overview of Egyptian politics and current issues in U.S. - Egyptian relations. It briefly provides a political history of modern Egypt, an overview of its political institutions, and a discussion of the prospects for democratization in Egypt.
Date:
December 12, 2007
Creator:
Sharp, Jeremy M.
Object Type:
Report
System:
The UNT Digital Library
Engrossment, Enrollment, and Presentation of Legislation
None
Date:
December 12, 2007
Creator:
Petersen, R. Eric
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, December 12, 2007
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 12, 2007
Creator:
Wilson, Chris
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 24, Ed. 1 Wednesday, December 12, 2007
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 12, 2007
Creator:
Bridges, Steven W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 31, No. 246, Ed. 1 Wednesday, December 12, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
December 12, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 532, Ed. 1 Wednesday, December 12, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
December 12, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 534, Ed. 1 Wednesday, December 12, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
December 12, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Holiday Schedule for DART Services
News release about DART's reduced service schedule during the Christmas and New Year's holidays.
Date:
December 12, 2007
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
Judicial Salary: Current Issues and Options for Congress
None
Date:
December 12, 2007
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library