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Showing 45541 - 45560 of 82972 results
  • A field evaluation of techniques used to construct a quantitative job exposure matrix
    A field evaluation of techniques used to construct a quantitative job exposure matrix
    Martyny J ;
    McCammon, Charles S.
    2001/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: A quantitative job exposure matrix (JEM) was created for historical exposures to a number of chemicals, including beryllium, at a U.S. Department of Energy (DOE) site. Monitoring data were limited or non-existent for many jobs and exposures, and much of the JEM was completed by using qualitative information obtained from employee inte ...
    Public Domain
  • Acute Respiratory Effects and Endotoxin Exposure During Wheat Harvest in Northeastern Colorado
    Acute Respiratory Effects and Endotoxin Exposure During Wheat Harvest in Northeastern Colorado
    Buchan R ;
    Stallones L
    2001/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Acute cross-shift respiratory changes were evaluated for workers at 25 farms in northeastern Colorado during the summer of 1994 wheat harvest. Information on workers' respiratory health, past occupational exposures, and smoking status was obtained. Each worker was asked to rank eight acute symptoms before he or she began harvest work for the day. S ...
  • Hazard ID 12 Traffic Hazards to Fire Fighters While Working Along Roadways
    Hazard ID 12: Traffic Hazards to Fire Fighters While Working Along Roadways
    McFall, Mark F. ;
    Schmidt, Eric R.
    2001/06/01 | NIOSH Numbered Publications
    The number of fire fighters struck and killed by motor vehicles has dramatically increased within recent years. During the 5-year period between 1995 and 1999, 17 fire fighters were struck and killed by motorists. This represents an 89% increase in the number of line-of-duty deaths over the previous 5-year period (between 1990 and 1994), when 9 fir ...
    Public Domain
  • Information Circular 9457 Miner Training Simulator Users Guide and Scripting Language Documentation
    Information Circular 9457: Miner Training Simulator: User's Guide and Scripting Language Documentation
    Ruff, Todd M.
    2001/06/01 | Mining Publications
    A training software package for new mine employees, called Miner Training Simulator (MTS), has been developed by researchers at the National Institute for Occupational Safety and Health. MTS is a computer-based tool that allows a trainee to enter a simulated mine and interact with his/her surroundings in order to learn basic mining concepts, safety ...
    Public Domain
  • Technology News 482 Ground Support Safety Training Video
    Technology News 482: Ground Support Safety Training Video
    National Institute for Occupational Safety and Health
    2001/06/01 | Mining Publications
    Effective training tools are developed for underground metal/nonmetal mines. Videos that focus on safe practices during the mining cycle are being produced. Two videos - one on handling explosives underground and one on identifying roof hazards and proper scaling techniques - were completed during 1999, and a third video is now available. This vide ...
    Public Domain
  • Technology News 490 An Inexpensive Device for Monitoring Explosions in Sealed Areas of Underground Mines
    Technology News 490: An Inexpensive Device for Monitoring Explosions in Sealed Areas of Underground Mines
    National Institute for Occupational Safety and Health
    2001/06/01 | Mining Publications
    The objective of this study was to develop a passive, inexpensive technique for monitoring explosion overpressures within sealed areas in underground coal mines. From 1994 to 2000, seven explosions of methane and/or coal dust occurred within the worked-out, sealed areas (gobs) of underground U.S. coal mines. These explosions, believed to have been ...
    Public Domain
  • Technology News 489 Reducing the Danger of Explosions in Sealed Areas Gobs in Mines
    Technology News 489: Reducing the Danger of Explosions in Sealed Areas (Gobs) in Mines
    National Institute for Occupational Safety and Health
    2001/06/01 | Mining Publications
    In the last 6 years, seven explosions of methane and/or coal dust occurred within worked-out, sealed areas (GOBS) of underground U.S. coal mines. These explosions, believed to have been started by lightning, destroyed many mine seals and caused much damage external to the sealed area. Three of these gob gas explosions occurred in one mine in Alabam ...
    Public Domain
  • Technology News 491 NIOSH Releases Two New Safety Training Videos
    Technology News 491: NIOSH Releases Two New Safety Training Videos
    National Institute for Occupational Safety and Health
    2001/06/01 | NIOSH Numbered Publications
    To develop safety training tools for mine health and safety trainers that fill gaps in currently available materials and help capture the wisdom and knowledge of "expert miners." NIOSH began a series of stakeholder meetings in 1998 to determine what research was needed to improve miner health and safety. One of the more common concerns among stakeh ...
    Public Domain
  • Design Considerations for the Next Generation of Longwall Shields
    Design Considerations for the Next Generation of Longwall Shields
    Barczak, Thomas M.
    2001/06/01 | Mining Publications
    Advancements in support technology have occurred to a large extent because of the demands of the mine operators. Shield supports are no exception. The most notable changes in shield technology in the past decade have been increases in shield capacity and life expectancy, which have increased by a factor of 4 and 7 respectively since the inception o ...
    Public Domain
  • Research by NIOSH for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
    Research by NIOSH for Controlling Respirable Dust and Methane Gas on Continuous Miner Faces
    Goodman, Gerrit V. R. ;
    Taylor, Charles D.
    2001/06/01 | Mining Publications
    The United States Federal Coal Mine Health and Safety Act of 1969 limits personal exposure to respirable dust to 2.0 mg/m3. This limit is measured gravimetrically as an 8-hour time weighted average concentration of the respirable coal dust (NIOSH, 1995). If the respirable dust sample contains more than 5 percent silica by weight, the respirable dus ...
    Public Domain
  • Noise Exposure in Longwall Mining and Engineering Controls Research
    Noise Exposure in Longwall Mining and Engineering Controls Research
    Bauer, Eric R. ;
    Podobinski, D. J.
    2001/06/01 | Mining Publications
    Prolonged exposure to noise can cause permanent damage to the auditory nerve and/or its sensory components, known as noise induced hearing loss (NIHL). It is the most common occupational disease in the United States today. The Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) is addressing NIH ...
    Public Domain
  • Scaled Cloud Model for Released Toxic Fumes
    Scaled Cloud Model for Released Toxic Fumes
    Wieland, Michael S.
    2001/06/01 | Mining Publications
    Recognizing the dynamic nature and possible range of toxic concentrations in the impending fume cloud prior to undertaking explosive blasting can reduce potential hazards and mitigate related incidents. The scaled cloud model was formulated to predict the relevant (major) toxic components in fume clouds released by nonideal mining explosives used f ...
    Public Domain
  • Effects of Water Sprays and Scrubber Exhaust on Face Methane Concentrations
    Effects of Water Sprays and Scrubber Exhaust on Face Methane Concentrations
    Taylor, Charles D. ;
    Zimmer, Jeanne A.
    2001/06/01 | Mining Publications
    Past studies with blowing face ventilation systems have shown that using a machine-mounted scrubber and water sprays can reduced methane levels at the face. The current research was conducted to determine how the sprays and scrubber interact to reduce methane levels, and what spray configurations provide the best face ventilation when used with a s ...
    Public Domain
  • Effect of ThreeWinding Transformer Models on the Analysis and Protection of Mine Power Systems
    Effect of Three-Winding Transformer Models on the Analysis and Protection of Mine Power Systems
    Oommen, Mathew P. ;
    Kohler, Jeffrey L.
    2001/06/01 | Mining Publications
    Computer-aided loadflow and fault analyses of mine power systems are routinely conducted to ascertain system performance and also to provide information to assist in the protection and coordination of these systems. Three-winding transformers are frequently encountered in mining applications, typically at continuous miner and longwall sections wher ...
    Public Domain
  • Factors Affecting the Location of Methanometers on Mining Equipment
    Factors Affecting the Location of Methanometers on Mining Equipment
    Taylor, Charles D. ;
    Thimons, Edward D.
    2001/06/01 | Mining Publications
    The U.S. Code of Federal Regulations (Title 30) requires that a methane monitor be placed on every mining machine to continuously observe and record methane levels at the face. The monitor must provide a warning whenever methane levels are 1.0 percent or higher. An effective monitoring system will indicate a methane concentration of 1.0 percent on ...
    Public Domain
  • Fatal Injuries to Civilian Workers in the United States 19801995 National Profile
    Fatal Injuries to Civilian Workers in the United States, 1980–1995: National Profile
    Marsh, Suzanne M. ;
    Layne, Larry A.
    2001/06/01 | NIOSH Numbered Publications
    The National Institute for Occupational Safety and Health collects and automates death certificates from the 52 vital statistics reporting units in the 50 States, New York City, and the District of Columbia for workers 16 years of age or older who die as a result of a work-related injury. Analysis of occupational injury deaths, such as those gather ...
    Public Domain
  • NIOSH Training Occupational Safety and Health Professionals Fact Sheet 2001
    NIOSH: Training Occupational Safety and Health Professionals: Fact Sheet [2001]
    National Institute for Occupational Safety and Health
    2001/06/01 | NIOSH Numbered Publications
    Each day an average of 9,000 U.S. workers sustain disabling injuries on the job, 16 workers die from an injury at work, and 137 workers die from work-related diseases. Data from a study published in 1997 funded by the National Institute for Occupational Safety and Health (NIOSH) showed that in 1992, the economic costs of job-related injuries and il ...
    Public Domain
  • Bioaerosol Lung Damage in a Worker with Repeated Exposure to Fungi in a WaterDamaged Building
    Bioaerosol Lung Damage in a Worker with Repeated Exposure to Fungi in a Water-Damaged Building
    Trout, Douglas B. ;
    Bernstein, Jonathan
    2001/06/01 | Environ Health Perspect 2001 Jun; 109:(6):641-644 | National Institute for Occupational Safety and Health (NIOSH)
    There has been increased concern over health effects related to potential exposure of building occupants to bioaerosols. We report the case of a worker with a respiratory illness related to bioaerosol exposure in a water-damaged building with extensive fungal contamination. We performed environmental tests to evaluate potential exposure to fungi, a ...
    Supporting Files Public Domain
  • Exposure to Paper Dust and the Onset of Asthma and Chronic Bronchitis
    Exposure to Paper Dust and the Onset of Asthma and Chronic Bronchitis
    Henneberger, Paul K. ;
    Hoffman C
    2001/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    This study looked to re-analyze data from a cohort of paper mill workers and unexposed residents from the same town, investigating whether asthma and chronic bronchitis are associated with current or cumulative dust exposure. The study was conducted among 972 paper mill workers who worked in the mill for at least I year between 1960 and 1987 and 78 ...
    Public Domain
  • Abraham Lincolns Blue Pills Did Our 16th President Suffer from Mercury Poisoning
    Abraham Lincoln’s Blue Pills: Did Our 16th President Suffer from Mercury Poisoning
    Feldman RG ;
    Greaves I
    2001/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    It is well known that Abraham Lincoln took a medicine called "blue mass" or "blue pill," commonly prescribed in the 19th century. What is now hardly known is that the main ingredient of blue mass was finely dispersed elemental mercury. As his friends understood, mercury was often prescribed for melancholy or "hypochondriasis," a condition Lincoln f ...
45541 - 45560 / 82972