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Showing 46641 - 46660 of 82805 results
  • Health Hazard Evaluation Report HETA 200000912803 Horry County Assessors Office Conway South Carolina
    Health Hazard Evaluation Report: HETA 2000–0091–2803: Horry County Assessor's Office, Conway, South Carolina
    Burr, Gregory A. ;
    Martinez, Kenneth F.
    2000/07/01 | Health Hazard Evaluation Reports (HHE)
    In December 1999, the National Institute for Occupational Safety and Health (NIOSH) received health hazard evaluation (HHE) requests from employees working in a Horry County Administrative Building, Conway, South Carolina. These workers described a prior incident in 1999, which involved carbon monoxide (CO) exposures, as well as ongoing concerns wi ...
    Public Domain
  • Prioritization of NTP Reproductive Toxicants for Field Studies
    Prioritization of NTP Reproductive Toxicants for Field Studies
    Ahlers HW ;
    Chapin RE
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Population studies that evaluate human reproductive impairment are time consuming, expensive, logistically difficult, and with limited resources must be prioritized to effectively prevent the adverse health effects in humans. Interactions among health scientists, unions, and industry can serve to identify populations exposed to potential hazards an ...
    Public Domain
  • Computer Modeling of Catch Benches to Mitigate Rockfall Hazards in Open Pit Mines
    Computer Modeling of Catch Benches to Mitigate Rockfall Hazards in Open Pit Mines
    07/01/2000 | NIOSH
    In a computer analysis of bench stability, bench-scale plane shears and tetrahedral wedges are simulated and stochastically analyzed to estimate the probability of retaining specified catch-bench widths.
    Public Domain
  • Monitoring Anaerobic Natural Attenuation of Petroleum Using a Novel In Situ Respiration Method in LowPermeability Sediment
    Monitoring Anaerobic Natural Attenuation of Petroleum Using a Novel In Situ Respiration Method in Low-Permeability Sediment
    Aelion CM ;
    Kirtland BC
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Assessing petroleum biodegradation rates is an important part of predicting natural attenuation in subsurface sediments. Monitoring carbon dioxide (CO2) and methane (CH4) produced in situ, and their radiocarbon 14C), stable carbon (13C) and deuterium (D). signature provide a novel method to assess anaerobic microbial processes. Our objectives were ...
  • Reported Chronic Insomnia Is Independent of Poor Sleep as Measured by Electroencephalography
    Reported Chronic Insomnia Is Independent of Poor Sleep as Measured by Electroencephalography
    Bonnet MH ;
    Rosa, Roger R.
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    OBJECTIVE: Several behavioral, physiological, and subjective variables were examined in subjects reporting chronic insomnia (IN group) and subjects with no complaint of insomnia (NC group) to determine factors predictive of poor sleep as measured by electroencephalography (EEG sleep). METHODS: A total of 177 subjects (121 in the IN group and 56 in ...
    Public Domain
  • RiskBased Selection of Respirators Against Infectious Aerosols Application to Anthrax Spores
    Risk-Based Selection of Respirators Against Infectious Aerosols: Application to Anthrax Spores
    Neuhaus J ;
    Nicas M
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    This article presents two methods for estimating infection risk among individuals wearing air-purifying respirators against airborne pathogens, with the overall aim of selecting appropriate respiratory protection. Necessary data inputs are the parameters for the ambient pathogen concentration distribution, the respirator penetration distribution, a ...
  • Field Test of a Portable Method for the Determination of Hexavalent Chromium in Workplace Air
    Field Test of a Portable Method for the Determination of Hexavalent Chromium in Workplace Air
    Ashley, Kevin E. ;
    Marlow, David A.
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Hexavalent chromium Cr(VI) is a human carcinogen that may be present in the workplace air of a variety of occupational settings. Occupational exposure to Cr(VI) has been associated with a number of work activities, including metal plating, welding, spray painting, tanning and abrasive blasting operations. Recent efforts in the authors laboratory ha ...
    Public Domain
  • The Fractional Free Volume of the Sorbed Vapor in Modeling the Viscoelastic Contribution to PolymerCoated Surface Acoustic Wave Vapor Sensor Responses
    The Fractional Free Volume of the Sorbed Vapor in Modeling the Viscoelastic Contribution to Polymer-Coated Surface Acoustic Wave Vapor Sensor Responses
    Grate JW ;
    Zellers ET
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Surface acoustic wave (SAW) vapor sensors with polymeric sorbent layers can respond to vapors on the basis of mass loading and modulus decreases of the polymer film. The modulus changes are associated with volume changes that occur as vapor is sorbed by the film. A factor based on the fractional free volume of the vapor as a liquid has been incorpo ...
  • A Retrospective Job Exposure Matrix for Estimating Exposure to 23 78TetrachlorodibenzoPDioxin
    A Retrospective Job Exposure Matrix for Estimating Exposure to 2,3, 7,8-Tetrachlorodibenzo-P-Dioxin
    Fingerhut, Marilyn A. ;
    Marlow D
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    A job exposure matrix was developed to estimate the 2,3, 7,8-tetrachlorodibenzo-p-dioxin exposure of 3,538 workers who produced 2,4,5-trichlorophenol and its derivatives. Daily TCDD exposure scores that were plant, process, and period specific were estimated for each job title as the product of 1) the concentration of TCDD (microg/g); 2) a qualitat ...
    Public Domain
  • Improved Rapid Analytical Method for the Urinary Determination of 35 6 Trichloro2Pyridinol a Metabolite of Chlorpyrifos
    Improved Rapid Analytical Method for the Urinary Determination of 3,5, 6 Trichloro-2-Pyridinol, a Metabolite of Chlorpyrifos
    Biagini, Raymond E. ;
    Hines CJ
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Urinary immunoassays have been used as screens for occupational exposure to a variety of compounds, including pesticides (Feng et al. 1994; Biagini et al. 1995; Mastin et al. 1998). Immunoassays are generally quite sensitive, specific and accurate. However, biotransformation of xenobiotics may lead to urinary excretion of metabolites, which, in som ...
    Public Domain
  • Synthesis of the O23 45 6Pentafluorobenzylhydroxylamine Oximes of Selected Carbonyl Compounds and Their Determination by Liquid Chromatography with Ultraviolet Detection
    Synthesis of the O-(2,3, 4,5, 6-Pentafluorobenzyl)hydroxylamine Oximes of Selected Carbonyl Compounds and Their Determination by Liquid Chromatography with Ultraviolet Detection
    Jehlar A ;
    Que Hee SS
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    The aims were to develop a liquid chromatographic (LC) method with ultraviolet detection (UVD) for O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) O-oximes of common aldehydes and ketones, and to define the steric limits of the synthetic reaction used to make the PFBHA O-oxime standards for gas chromatographic (GC) and LC methods ...
  • Participation of MAP Kinase p38 and IkB Kinase in Chromium VIInduced NFkB and AP1 Activation
    Participation of MAP Kinase p38 and IkB Kinase in Chromium (VI)-Induced NF-kB and AP-1 Activation
    Castranova, Vincent ;
    Chen F
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Epidemiological studies demonstrate that environmental and occupational exposure of chromium(VI) [Cr(VI)] or Cr(VI)-containing particles can cause a number of human diseases, including inflammation and cancer. The biological mechanisms responsible for the initiation and progression of diseases resulting from exposure to Cr(VI) are not fully underst ...
    Public Domain
  • Occupational Injuries in the Mining Industry and Their Association with Statewide Cold Ambient Temperatures in the USA
    Occupational Injuries in the Mining Industry and Their Association with Statewide Cold Ambient Temperatures in the USA
    Bell J ;
    Gardner L
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Relatively few occupational epidemiological studies have been conducted concerning the association between cold ambient temperatures and cold exposure injuries, and fewer still of traumatic occupational injuries and cold ambient temperatures. The association of ambient temperature and wind data from the National Climatic Data Center with injury dat ...
    Public Domain
  • Sick Building Syndrome
    Sick Building Syndrome
    Hodgson, Michael J.
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    There is reasonable evidence that an objective basis exists for SBS, based on both laboratory and field studies. Intervention strategies for environmental control in the office appear to solve many of the problems, although engineering design strategies sometimes are inadequate. Is there evidence that these data pertain to MCS? A major problem aris ...
    Public Domain
  • Adding Construction to the Academic Safety Curriculum
    Adding Construction to the Academic Safety Curriculum
    Becker PE ;
    Frederick, Linda J.
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Growth in the construction industry underscores the need for qualified individuals-professionals with specific knowledge of construction safety issues. However, according to the authors, academic safety programs have been slow to respond to this need. The authors discuss the implementation of a new construction program into the safety curriculum at ...
  • Use of a JobExposure Matrix to Assess Occupational Exposures in Relation to Birth Defects
    Use of a Job-Exposure Matrix to Assess Occupational Exposures in Relation to Birth Defects
    Ellenbecker, Michael J. ;
    Frumkin H
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Accurate exposure assessment remains a challenge in occupational epidemiology. We evaluated one approach, use of a job-exposure matrix (JEM), by applying the National Institute for Occupational Safety and Health (NIOSH) JEM to a large case-control birth defects study that included parental occupation information. We investigated the JEM exposure pr ...
  • NIOSH pocket guide to chemical hazards and other databases superseded by 2000130c
    NIOSH pocket guide to chemical hazards and other databases (superseded by 2000-130c).
    National Institute for Occupational Safety and Health
    2000/07/01 | NIOSH Numbered Publications
    This document has been superseded and the new version can be found https://www.cdc.gov/niosh/npg/. This compact disc contains a selection of databases and documents that are available on the NIOSH website (https://www.cdc.gov/niosh/). In addition, this CD contains the 1996 North American Emergency Response Guidebook, which is available on the Depar ...
    Public Domain
  • Evaluation of Workers Perceived Sense of Slip and Effect of Prior Knowledge of Slipperiness During Task Performance on Slippery Surface
    Evaluation of Workers’ Perceived Sense of Slip and Effect of Prior Knowledge of Slipperiness During Task Performance on Slippery Surface
    Bhattacharya, Amit ;
    Chiou S-Y
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Forty healthy industrial workers (age: 41.0-14.9 years) were tested for postural stability for three simulated tasks: (1) standing upright; (2) rapid trunk movement; and (3) lateral reach during lifting. These tasks were performed on four levels of slippery surfaces under different environmental lighting with new or workers' own old shoes. Prior to ...
  • Estimating Factors to Convert Chinese Total Dust Measurements to ACGIH Respirable Concentrations in Metal Mines and Pottery Industries
    Estimating Factors to Convert Chinese “Total Dust” Measurements to ACGIH Respirable Concentrations in Metal Mines and Pottery Industries
    Chen J ;
    Chen W
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Historical data on the dust exposures of Chinese workers in metal mines (iron/copper, tin, tungsten) and pottery industries are being used in an ongoing joint Chinese/United States epidemiological study to investigate the exposure-response relationship for the development of silicosis, lung cancer, and other diseases. The historical data include 't ...
    Public Domain
  • Determination of Airborne Isocyanate Exposure Considerations in Method Selection
    Determination of Airborne Isocyanate Exposure: Considerations in Method Selection
    Cassinelli, Mary E. ;
    Key-Schwartz, Rosa J.
    2000/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    To assess worker isocyanate exposures in a variety of processes involving the manufacture and use of surface coatings, polyurethane foams, adhesives, resins, elastomers, binders, and sealants, it is important to be able to measure airborne reactive isocyanate-containing compounds. Choosing the correct methodology can be difficult. Isocyanate specie ...
    Public Domain
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