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Showing 43881 - 43900 of 82802 results
  • Investigation of Asbestos Exposures Associated with Vermiculite Expansion and Vermiculite Use in Production of Industrial and Horticultural Products
    Investigation of Asbestos Exposures Associated with Vermiculite Expansion and Vermiculite Use in Production of Industrial and Horticultural Products
    Hewett, Daniel J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The former W.R. Grace mine in Libby, Montana was so contaminated by asbestos that the company eventually closed the mine. More recently, the Environmental Protection Agency (EPA) began exposure assessments to determine health risks associated with asbestos from vermiculite remaining in the area. In light of the concern over the Libby Montana deposi ...
    Public Domain
  • The Efficiency of Alkaline Extraction for the Recovery of Hexavalent Chromium CrVI from Paint Samples and the Effect of Sample Storage on CrVI Recovery
    The Efficiency of Alkaline Extraction for the Recovery of Hexavalent Chromium (CrVI) from Paint Samples and the Effect of Sample Storage on CrVI Recovery
    Froines JR ;
    Luk KK
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Workplace exposures to CrVI, a human carcinogen, are significant in spraying operations of chromate-containing paints. Accurate determination of CrVI in paint aerosol air samples is important in assessing a worker's exposure to CrVI. National Institute for Occupational Safety and Health method 7604 is widely used for determining CrVI in air samples ...
  • Truck Drivers and Heart Disease in the United States 19791990
    Truck Drivers and Heart Disease in the United States, 1979–1990
    Burnett CA ;
    Robinson CF
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Studies of truck drivers and cardiovascular disease (CVD) are limited, although studies of other professional drivers reported increased risk for CVD and its risk factors. Mortality due to cardiovascular disease among truck drivers was evaluated using data from the National Occupational Mortality Study, consisting of all deaths occurring in 28 stat ...
    Public Domain
  • Performance of Eighteen N95 FilteringFacepiece Models
    Performance of Eighteen N95 Filtering-Facepiece Models
    Campbell, David D. ;
    Coffey, Christopher C.
    2002/06/01 | Mining Publications
    A panel of 25 subjects with varying face sizes tested 18 models of N95 filtering face- piece respirators. The performance of the respirators was determined with and without fit-testing using the 5th percentile simulated workplace protection factor (SWPF) tests determined from the total penetration (face seal leakage plus filter penetration) of six ...
    Public Domain
  • An Exposure Evaluation of Heat Stress Among Workers in a Television Panel Production Facility
    An Exposure Evaluation of Heat Stress Among Workers in a Television Panel Production Facility
    King, Bradley S. ;
    McCullough, Joel E.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    NIOSH conducted a health hazard evaluation in response to a request regarding heat stress concerns at a television glass panel production facility. Workers were stationed at three forming lines, each served by its own furnace producing molten glass. Furnace temperatures can exceed 2100 degrees Fahrenheit (F) and temperatures of the formed glass pan ...
    Public Domain
  • Evaluating Performance Characteristics of MachineMounted Methane Monitors by Measuring Response Time
    Evaluating Performance Characteristics of Machine-Mounted Methane Monitors by Measuring Response Time
    06/01/2002 | NIOSH
    This publication examines a procedure for measuring the response time of machine-mounted methane monitors
    Public Domain
  • A Numerical and Experimental Investigation of Crystalline Silica Exposure Control During TuckPointing
    A Numerical and Experimental Investigation of Crystalline Silica Exposure Control During Tuck-Pointing
    Bennett J ;
    Echt, Alan S.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Tuck-pointing occurs on a scaffold, which limits the size and power of the LEV system. Thus, the goal of this study was to reduce the flowrate necessary for exposure control. Control addresses flow induced by the rotating grinding wheel, flow induced by the mortar particle stream, and particle momentum. Computational fluid dynamic (CFD) simulation ...
    Public Domain
  • Determination of Known Exhalation Valve Leakage Using an Irritant Smoke Test Kit
    Determination of Known Exhalation Valve Leakage Using an Irritant Smoke Test Kit
    McKay R ;
    Snyder, Erin M.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    This study evaluated the ability of a qualitative fit test method (irritant smoke) to detect known exhalation valve leakage. The OSHA protocol for the irritant smoke test mandates the use of a low flow air pump at 200 Ml/minute or aspirator squeeze bulb. Many commercial test kits include an aspirator bulb, which is subject to variation from depth a ...
    Public Domain
  • Relationships Between Body Mass Indices and Surgical Replacements of Knee and Hip Joints
    Relationships Between Body Mass Indices and Surgical Replacements of Knee and Hip Joints
    Biggs JJ ;
    Cox CM
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Osteoarthritis is both the most common form of arthritis and the most common reason for joint replacement surgery. Those obese are believed to be more likely to develop generalized osteoarthritis that leads, not only to knee, but also to hip joint replacement surgeries. We hypothesized that obesity is also a risk for partial joint replacements and ...
  • Managing Occupational Exposure to Mercury Vapor from Museum Collections
    Managing Occupational Exposure to Mercury Vapor from Museum Collections
    Burroughs G ;
    Makos K
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    During the past two centuries, millions of botanical specimens in museum and university study collections were treated with mercuric chloride as a prophylactic against mold and insect pests. Over time, mercuric chloride disassociates into elemental mercury vapor, accumulating in closed storage. Collections facilities typically have hundreds of case ...
    Public Domain
  • Setting the Respirator Research Agenda
    Setting the Respirator Research Agenda
    Metzler R
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    No Description Provided
    Public Domain
  • Biological Contaminants Assessment at a Former Tannery
    Biological Contaminants Assessment at a Former Tannery
    Delaney, Lisa J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A tannery was abandoned in 1994 leaving behind equipment, files, chemicals, and processed and unprocessed hides, fleshings (pieces of skin and fat), and animal hair of unknown origin. In the summer of 2001, remediation workers began cleanup and removal of biological and chemical contaminants from the site. Remediation employees were concerned about ...
    Public Domain
  • An Alternate Characterization of Hazard in Occupational Epidemiology Years of Life Lost per Years Worked
    An Alternate Characterization of Hazard in Occupational Epidemiology: Years of Life Lost per Years Worked
    Bailer AJ ;
    Gilbert, Stephen J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Standardized mortality ratios (SMRs) and other measures of relative risk by themselves may not suffice as descriptors of occupational hazards for many audiences including decision-makers and those at direct risk from hazardous work. To explore other approaches, we calculated excess years of potential life lost and excess lifetime risk for both lung ...
    Public Domain
  • Filtration Efficiency of Selected HVAC Filters
    Filtration Efficiency of Selected HVAC Filters
    Commodore M ;
    Fotta, Steven
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Air quality begins with good engineering controls in the air handling system (HVAC system). For particulate matter this involves having an air handler containing filters which remove the majority of particulate matter from the incoming ambient air. The National Institute for Occupational Safety and Health (NIOSH) has conducted a study of various ba ...
    Public Domain
  • La silocosis en los operadores de mquinas de limpieza por chorro de arena
    La silocosis en los operadores de máquinas de limpieza por chorro de arena
    Lentz, Thomas ;
    Loos, Gregory P.
    06/01/2002 | NIOSH Numbered Publications
    "Aprender sobre epidemiología estudiando un riesgo ocupacional, una enfermedad asociada con el riesgo y los métodos para prevenir la enfermedad. La epidemiología es el estudio de por qué y cómo ocurre y se propaga una enfermedad en las poblaciones. El propósito de la epidemiología es prevenir y controlar las enfermedades identificando sus causas y ...
    Supporting Files Multi-Language Public Domain
  • Reduction of PAH Exposure and Effects in Auto Mechanic Trainees Impact of a Simple Intervention Evaluated by Carcinogen Biological Monitoring
    Reduction of PAH Exposure and Effects in Auto Mechanic Trainees: Impact of a Simple Intervention Evaluated by Carcinogen Biological Monitoring
    Booth-Jones A ;
    Goldenhar L
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    We have shown previously in an animal model that prompt washing reduces the levels of adducts in skin and lung DNA of mice exposed to engine oil. We used these results to design a simple exposure intervention for a group of young auto mechanic trainees at local technical schools. The intervention consisted of a review of the animal data emphasizing ...
  • Equations for Calculating Exposure Management Objectives for Single Shift LongTerm Average and Dual Exposure Limits
    Equations for Calculating Exposure Management Objectives for Single Shift, Long-Term Average, and Dual Exposure Limits
    Hewett, Daniel J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The majority of exposure limits for gases, vapors, and particulates have as their implicit or explicit goal the control of exposures for each employee. A measure of noncompliance for a typical single shift, TWA exposure limit (or for a 'long-term average' exposure limit) is the probability that a randomly selected worker has a 95th percentile expos ...
    Public Domain
  • The NIOSH Fatality Assessment and Control Evaluation FACE Program 2002
    The NIOSH Fatality Assessment and Control Evaluation (FACE) Program [2002]
    Burkhart, J
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The NIOSH Fatality Assessment and Control Evaluation (FACE) program is a research program designed to identify and study fatal occupational injuries. The program goal is to prevent occupational fatalities across the nation by identifying and evaluating work situations at high risk for fatal injury and then formulating and disseminating prevention s ...
    Public Domain
  • Current Methods and Future Trends in Video Exposure Monitoring
    Current Methods and Future Trends in Video Exposure Monitoring
    Gressel M ;
    Kovein, Ronald J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Video Exposure Monitoring is a technique that allows the identification of specific tasks which contribute most to a worker's occupational exposure to hazardous agents. This technique, developed over the past 15 years, has undergone many changes. This presentation will discuss the current state-of-the-art methods and possible future directions for ...
    Public Domain
  • Used Ventilation Filters What Is That Smell
    Used Ventilation Filters: What Is That Smell?
    Berardinelli, Stephen P. Jr. ;
    Calvert C
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A strong odor from used ventilation filters was noticed during annual routine maintenance on the air-handling units at a research facility. Maintenance workers expressed concern of a potential health hazard resulting from direct contact with these filters. This concern prompted a thorough examination of the physical and chemical nature of the filte ...
    Public Domain
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