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A balloon-borne aerosol spectrometer for high altitude low aerosol concentration measurements

Description: Funded by Air Force Wright Aeronautical Laboratory, a new balloon-borne high altitude aerosol spectrometer, for the measurement of cirrus cloud ice crystals, has been developed and successfully flown by Sandia National Laboratories and Radiance Research. This report (1) details the aerosol spectrometer design and construction, (2) discusses data transmission and decoding, (3) presents data collected on three Florida flights in tables and plots. 2 refs., 11 figs., 3 tabs.
Date: August 1, 1990
Creator: Brown, G.S. (Sandia National Labs., Albuquerque, NM (USA)) & Weiss, R.E. (Radiance Research, Seattle, WA (USA))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Survey preliminary report, Portsmouth Uranium Enrichment Complex, Piketon, Ohio

Description: This report presents the preliminary findings from the first phase of the Environmental Survey of the United States Department of Energy (DOE) Portsmouth Uranium Enrichment Complex (PUEC), conducted August 4 through August 15, 1986. The Survey is being conducted by an interdisciplinary team of environmental specialists, led and managed by the Office of Environment, Safety and Health's Office of Environmental Audit. Team specialists are being supplied by a private contractor. The objective of th… more
Date: August 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Environmental Survey preliminary report, Hanford Site, Richland, Washington

Description: This report presents the preliminary findings from the first phase of the Environmental Survey of the United States Department of Energy (DOE) Hanford Site, conducted August 18 through September 5, 1986. The Survey is being conducted by an interdisciplinary team of environmental specialists, led and managed by the Office of Environment, Safety and Health's Office of Environmental Audit. Individual team components are being supplied by a private contractor. The objective of the Survey is to iden… more
Date: August 1, 1987
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radionuclide air emission report for the Hanford Site Calendar Year 1993

Description: This report documents radionuclide air emissions from the Hanford Site in 1993 and the resulting effective dose equivalent to any member of the public. The report has been prepared and will be submitted in accordance with reporting requirements in the Code of Federal Regulations, Title 40, Protection of the Environment, Part 61, {open_quotes}National Emissions Standards for Hazardous Air Pollutants,{close_quotes} Subpart H, {open_quotes}National Emission Standards for Emissions of Radionuclides… more
Date: August 1, 1994
Creator: Diediker, L. P.; Curn, B. L.; Rhoads, K.; Damberg, E. G.; Soldat, J. K. & Jette, S. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Results of Self-Absorption Study on the Versapor 3000 Filters for Radioactive Particulate Air Sampling

Description: Since the mid-1980s the Pacific Northwest National Laboratory (PNNL) has used a value of 0.85 as a correction factor for the self absorption of activity of particulate radioactive air samples. More recently, an effort was made to evaluate the current particulate radioactive air sample filters (Versapor® 3000) used at PNNL for self absorption effects. There were two methods used in the study, 1) to compare the radioactivity concentration by direct gas-flow proportional counting of the filter to … more
Date: August 22, 2008
Creator: Barnett, J. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurements of air contaminants during the Cerro Grande fire at Los Alamos National Laboratory

Description: Ambient air sampling for radioactive air contaminants was continued throughout the Cerro Grande fire that burned part of Los Alamos National Laboratory. During the fire, samples were collected more frequently than normal because buildup of smoke particles on the filters was decreasing the air flow. Overall, actual sampling time was 96% of the total possible sampling time for the May 2000 samples. To evaluate potential human exposure to air contaminants, the samples were analyzed as soon as poss… more
Date: August 1, 2010
Creator: Eberhart, Craig
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Exploitation of resonance Raman spectroscopy as a remote chemical sensor

Description: We have discussed recent experimental results using a resonance-Raman-based LIDAR system as a remote chemical sensor. This spectroscopy has the fundamental advantage that it is based on optical fingerprints that are insensitive to environmental perturbations. By taking advantage of resonance enhancement, which 6 orders-of-magnitude, can be as large as 4 to an increased sensing range for a given chemical concentration or lower detection limit for a given stand-off distance can be realized. The s… more
Date: August 1, 1995
Creator: Sedlacek, A.J. & Chen, C.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Project W-420 Ventilation Stack Monitoring System Year 2000 Compliance Assessment Project Plan

Description: This assessment describes the potential Year 2000 (Y2K) problems and describes the methods for achieving Y2K Compliance for Project W-420, Ventilation Stack Monitoring Systems Upgrades. The purpose of this assessment is to give an overview of the project. This document will not be updated and any dates contained in this document are estimates and may change. The project work scope includes upgrades to ventilation stacks and generic effluent monitoring systems (GEMS) at the 244-A Double Containe… more
Date: August 25, 1999
Creator: BUSSELL, J.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Regulatory Off-Gas Analysis from the Evaporator of Hanford Simulated Waste Spiked with Organic Compounds

Description: After strontium/transuranics removal by precipitation followed by cesium/technetium removal by ion exchange, remaining low activity waste in the Hanford River Protection Project Waste Treatment Plant is to be concentrated by evaporation prior to being mixed with glass formers and vitrified. To provide a technical basis to permit the waste treatment facility, a relatively organic-rich Hanford Tank 241-AN-107 waste simulant was spiked with 14 target volatile, semi-volatile and pesticide compounds… more
Date: August 21, 2002
Creator: Calloway, T.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

QUANTIFICATION OF MERCURY IN FLUE GAS EMISSION USING BORON-DOPED DIAMOND ELECTROCHEMISTRY

Description: In this project, we have attempted to develop a new technique utilizing Boron-doped diamond (BDD) films to electrochemically detect mercury dissolved in solution via the initial deposition of metallic mercury, followed by anodic linear sweep voltammetry in the range from 10-10{sup -10} M to 10{sup -5} M. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques were employed. The extremely low background current for BDD electrodes compared to glassy carbon (GC) provides a stro… more
Date: August 19, 2003
Creator: Manivannan, A. & Seehra, M.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of new VOC exposure metrics and their relationship to ``Sick Building Syndrome`` symptoms

Description: Volatile organic compounds (VOCs) are suspected to contribute significantly to ``Sick Building Syndrome`` (SBS), a complex of subchronic symptoms that occurs during and in general decreases away from occupancy of the building in question. A new approach takes into account individual VOC potencies, as well as the highly correlated nature of the complex VOC mixtures found indoors. The new VOC metrics are statistically significant predictors of symptom outcomes from the California Healthy Building… more
Date: August 1, 1995
Creator: Ten Brinke, J.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries Government Documents Department
open access

Calcining process emission screening test for polychlorinated dibenzodioxins

Description: Since 1963, the Idaho Chemical Processing Plant (ICPP) at the Idaho National Engineering Laboratory has been using fluidized-bed technology to convert high-level radioactive liquid waste into a granular solid for interim storage before eventual long-term storage. The calcining process uses kerosene, oxygen, air and a cooling jacket to maintain the temperature of the fluidized bed at approximately 400 C. The solids are moved to storage bins and the combustion gases and fine particles are swept f… more
Date: August 1, 1993
Creator: Hartenstein, S.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An application of wavelet transform for decomposition of millimeter-wave spectroscopic signals

Description: Millimeter-wave technique, based on rotational energy transitions of molecules, holds promise for remote monitoring of environmentally hazardous effluents from processes. Argonne National Laboratory is developing a millimeter-wave sensor based on active swept-frequency radar technique in the frequency range of 220-320 GHz. Because the line widths of millimeter-wave spectra of molecules at atmospheric pressure are broad ({approximately} 4 GHz half-width at half height), the composite spectrum of… more
Date: August 1, 1994
Creator: Gopalan, K.; Gopalsami, N.; Bakhtiari, S. & Raptis, A. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

U.S. DOE 2004 LANL Radionuclide Air Emissions

Description: Amendments to the Clean Air Act, which added radionuclides to the National Emissions Standards for Hazardous Air Pollutants (NESHAP), went into effect in 1990. Specifically, a subpart (H) of 40 CFR 61 established an annual limit on the impact to the public attributable to emissions of radionuclides from U.S. Department of Energy facilities, such as the Los Alamos National Laboratory (LANL). As part of the new NESHAP regulations, LANL must submit an annual report to the U.S. Environmental Protec… more
Date: August 12, 2005
Creator: Jacobson, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Pacific Northwest Laboratory annual report for 1987 to the DOE Office of Energy Research: Part 3, Atmospheric sciences

Description: Currently, the broad goals of atmospheric research at Pacific Northwest Laboratory (PNL) are to describe and predict the nature and fate of atmospheric contaminants and to develop an understanding of the atmospheric processes contributing to their distribution on local, regional, and continental scales in the air, in clouds, and on the surface. For several years, studies of transport and diffusion have been extended to mesoscale areas of complex terrain. Atmospheric cleansing research has expan… more
Date: August 1, 1988
Creator: Elderkin, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Brookhaven National Laboratory free-air carbon dioxide enrichment forest prototype -- Interim report

Description: A variety of approaches have been used in fumigation experiments to quantify the effects of increasing atmospheric carbon dioxide concentration ([CO{sub 2}]{sub atm}) on plants. Mot of these approaches, reviewed elsewhere (Allen 1992), entail some type of enclosure or chamber. Chambers provide containment of the CO{sub 2}-enriched air and in this way reduce the amount of CO{sub 2} required for the experiment. At the same time, chambers alter microclimate conditions in a variety of ways so that … more
Date: August 1, 1994
Creator: Hendrey, G. R.; Lewin, K. F. & Nagy, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

US Department of Energy report 1996 LANL radionuclide air emissions

Description: Presented is the Laboratory-wide certified report regarding radioactive effluents released into the air by the Los Alamos National Laboratory (LANL) in 1996. This information is required under the Clean Air Act and is being reported to the U.S. Environmental Protection Agency (EPA). The effective dose equivalent (EDE) to a hypothetical maximum exposed individual (MEI) of the public was calculated, using procedures specified by the EPA and described in this report. That dose was 1.93 mrem for 19… more
Date: August 1, 1997
Creator: Jacobson, K.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hanford environmental management program multi-year work plan FY1998

Description: The Environmental Support FY 1998 Multi-Year Work Plan (MYWP), consisting of the Hanford Environmental Management Program (HEMP) and the Effluent and Environmental Monitoring (EEM) Program MYWP is prepared to specifically establish the execution year`s work scope, budget targets, and schedule baselines. The work plan contains the work breakdown structure (WBS) and the WBS dictionary, milestone listings and milestone description sheets, and cost targets that the program manager will use to manag… more
Date: August 25, 1997
Creator: Giese, K.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of an air emissions inventory for Oak Ridge National Laboratory

Description: Accurate air emissions inventory is important in an effective Clean Air Act (CAA) compliance program; without it, a facility may have difficulty proving compliance with regulations or permit conditions. An emissions inventory can also serve for evaluating the applicability of new regulations (eg, Title V of CAA) and in complying with them. Therefore it is important for the inventory to be well-planned and comprehensive. Preparation of an emissions inventory for a large R&D facility such as ORNL… more
Date: August 1, 1996
Creator: Skipper, D. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Survey of an Air Monitoring Program

Description: The objective of this report is to compare personal air sampling data to stationary air sampling data and to bioassay data that was taken during the decontamination and decommissioning of sixty-one plutonium glove boxes at Argonne National Laboratory (ANL) in 1995. An air monitoring program administered at Argonne National Laboratory was assessed by comparing personal air sampler (PAS) data, stationary air sampler (SAS) data, and bioassay data. The study revealed that the PAS and SAS techniques… more
Date: August 1, 1997
Creator: Lee, M.B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Trends in visibility, PM{sub 2.5}, and deposition expected from the Acid Rain Provisions of the 1990 Clean Air Act Amendments

Description: The Acid Rain Provisions (Title IV) of the 1990 Clean Air Act Amendments (CAAA) are designed to reduce the deposition of SO{sub 2} and sulfate and, to a lesser extent, the deposition of NO{sub x} and nitrate through reduction of SO{sub 2} and NO{sub x} emissions. However, other important benefits are anticipated from the emission control strategies, including improvement of regional visibility and reductions in concentrations of fine particles (PM2.5). In this study, the authors coupled utility… more
Date: August 1, 1997
Creator: Shannon, J. D. & Hanson, D. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A laboratory comparison of two methods of characterizing exhaust stack emissions. Final report

Description: Concern for the environment and public health, and compliance with DOE and EPA regulations require that representative sampling be conducted on exhaust stacks that emit radioactive materials. In order to design and install particulate samplers, EPA Regulation 40CFR61, Subpart H (NESHAP) specifies that particle concentration profiles be determined, in addition to velocity profiles, at the sampling cross section of all stacks requiring sampling. Neither the NESHAP regulation nor ANSI standard N13… more
Date: August 11, 1995
Creator: Fairchild, C.; LaBauve, J.; Kissane, R. & Ortiz, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tritium monitor calibration at Los Alamos National Laboratory

Description: Tritium in air is monitored at Los Alamos National Laboratory (LANL) with air breathing instruments based on ionization chambers. Stack emissions are continuously monitored from sample tubes which each connect to a Tritium bubble which differentially collects HTO and HT. A set of glass vials of glycol capture the HTO. The HT is oxidized with a palladium catalyst and the resultant HTO is captured in a second set of vials of glycol. The glycol is counted with a liquid scintillation counter. All c… more
Date: August 1, 1997
Creator: Bjork, Christopher W.; Aikin, Douglas J. & Houlton, Thomas W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of Molecular Recognition in Gas Sensors

Description: Molecular recognition is an important topic when searching for new, selective coating materials for chemical sensing. Recently, the general idea of molecular recognition in the gas phase was challenged by Grate et al. However, in earlier thickness-shear mode resonator (TSMR) investigations, convincing evidence was presented for specific recognition of particular analyte target molecules. In this study, the authors systematically investigated coatings previously shown to be highly selective, suc… more
Date: August 1, 1998
Creator: Hierlemann, A.; Ricco, A.J.; Bodenhoefer, K. & Goepel, W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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