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Showing 46781 - 46800 of 82805 results
  • Comparison of Selected Lower Explosive Limit Meters Used by USAF and Commercial Jet Fuel Tank Entry Personnel
    Comparison of Selected Lower Explosive Limit Meters Used by USAF and Commercial Jet Fuel Tank Entry Personnel
    Blazicko B ;
    Fritts D
    2000/05/20 | Mining Publications
    Thousands of military personnel and tens of thousands of civilian workers perform tank entry procedures. OSHA regulations (§ 1910.146) require the internal atmosphere be tested with a calibrated direct-reading instrument for oxygen content, flammable gases and vapors, and potential toxic air contaminants before an employee enters the space. The U.S ...
    Public Domain
  • A field evaluation of a new endexhaled breath method to evaluate solvent exposure in drycleaning shops
    A field evaluation of a new end-exhaled breath method to evaluate solvent exposure in dry-cleaning shops
    Burroughs G ;
    Ernest G
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    A field study was conducted using a newly developed, near-real-time method with a simple collection device and a portable gas chromatograph (NIOSH Method 3704) for estimating solvent exposure in the following-day, preshift breath of dry-cleaning shop workers. The purpose of this study was to document strategies for reducing exposures to perchloroet ...
    Public Domain
  • Powered airpurifying particulate respirator filter penetration by DOP aerosol
    Powered air-purifying particulate respirator filter penetration by DOP aerosol
    Martin, Stephen B. Jr. ;
    Moyer E
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    With the inception of 42 CFR 84, the old 30 CFR 11 regulations for nonpowered, air-purifying particulate respirators were replaced with new, more demanding certification requirements. However, the updated 42 CFR 84 regulations only changed the requirements for negative-pressure particulate respirators. The certification requirements for powered air ...
    Public Domain
  • Engineering controls for furniture strippers to meet the new OSHA PEL for methylene chloride
    Engineering controls for furniture strippers to meet the new OSHA PEL for methylene chloride
    Fairfield-Estill, Cheryl ;
    Kurimo, Robert W.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    OSHA recently lowered the permissible exposure limit (PEL) for methylene chloride to 25 ppm with an action level of 12.5 ppm. Small businesses are now required to use engineering controls to meet this standard. This research was conducted at a small furniture-stripping facility with one worker who strips furniture using a dip tank. In the mid-1980s ...
    Public Domain
  • Exposure assessment of employees landapplying biosolids
    Exposure assessment of employees land-applying biosolids
    Burton, Nancy C. ;
    Trout, Douglas B.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    In response to a management request for assistance, NIOSH investigators conducted an evaluation of worker exposure during the land application of biosolids (treated sewage sludge). At the wastewater plant, biosolids were loaded into large dump trucks with a front-end loader, transported to a farm field, and dumped. The biosolids were then loaded in ...
    Public Domain
  • Shipyard confined space welding intervention
    Shipyard confined space welding intervention
    Hudock, Stephen D. ;
    Johnston O
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    Shipyard welders, especially those working in confined spaces, have not been adequately studied as an occupational group in terms of ergonomic factors affecting worker health, safety, and performance. These workers can weld under conditions that provide inadequate ventilation and require static muscular work and awkward postures. This study measure ...
    Public Domain
  • Electrostatic charge distributions on airborne microorganisms
    Electrostatic charge distributions on airborne microorganisms
    Baron, Paul A. ;
    Grinshpun S
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    Several studies showed that bacteria suspended in liquid may carry as many as 10,000 elementary charges. This study was undertaken to determine the electrical charge distributions on bacteria in the airborne state. This information is important. since high electric charges on airborne microorganisms may result in high transport losses in flow syste ...
  • Carbon dioxide levels relative humidity and temperature and flight factors in commercial aircraft cabins
    Carbon dioxide levels, relative humidity, and temperature and flight factors in commercial aircraft cabins
    Deddens J ;
    Waters M
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    For the NIOSH/FAA Working Women's Health Study, exposures to cabin environmental contaminants were measured on 33 commercial aircraft flights. One objective of the exposure assessment was to characterize carbon dioxide (CO2) exposure distributions, temperature, and relative humidity (RH) and their relationship to flight factors such as aircraft siz ...
    Public Domain
  • Adequacy of six exercises for laboratory testing of respirator performance
    Adequacy of six exercises for laboratory testing of respirator performance
    Campbell, David D. ;
    Coffey, Christopher C.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    Since respirator workplace studies had consistently found no correlation between quantitative fit-factors and workplace protection factors, a previous study took a new approach that compared fit-factors with actual exposure doses of 1,1,2-trichloro-1,2,2 trifluoroethane [Freon-113] received while wearing half-masks. In that study, ambient aerosol ( ...
    Public Domain
  • The Effect of Wind Speed upon Aerosol Penetration into an Enclosure
    The Effect of Wind Speed upon Aerosol Penetration into an Enclosure
    Cecala, Andrew B. ;
    Heitbrink, William A.
    2000/05/20 | Mining Publications
    Environmental enclosures are used on vehicles used in agriculture, construction, and surface mining to protect the operator from exposure to air contaminants such as pesticides and respirable crystalline silica. A recent ASAE standard (S525) specifies an enclosure static pressure of at least 6 mm of water. This specification was based on profession ...
    Public Domain
  • Silicosis prevention among Hispanic construction workers developing culturally appropriate health messages
    Silicosis prevention among Hispanic construction workers: developing culturally appropriate health messages
    Clough K ;
    Ellison C
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    More than 14,000 workers in the United States have died from silicosis, and hundreds more add to the death toll each year. In the state of Texas, 300 cases of silicosis and workers exposed to silica were reported between 1990 and 1997. Among these cases, construction was one of the most frequently reported industries. One-third of the silicosis cas ...
    Public Domain
  • Detection of polycyclic aromatic hydrocarbons PAHS in skin wipe samples of automotive mechanic trainees
    Detection of polycyclic aromatic hydrocarbons (PAHS) in skin wipe samples of automotive mechanic. trainees
    Booth-Jones A ;
    Neumeister, Charles E.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    Epidemiologic evidence suggests that automobile and truck mechanics are at increased risk of bladder cancer. For mechanics, used gasoline engine oil (UGEO) is a major occupational exposure. UGEOs contain polycyclic aromatic hydrocarbons (PAHs) formed during combustion in engine operation. Because these PAHs have low volatility, mechanics have poten ...
    Public Domain
  • The continuing adventures of NIOSH investigators during an IEQ investigation
    The continuing adventures of NIOSH investigators during an IEQ investigation
    Burr, Gregory A. ;
    Malkin, Robert
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    In 1998, NIOSH conducted an indoor air quality (IEQ) evaluation at a large midwestern high school (3000+ students, 350 teachers) constructed in the 1970s. Staff and students were experiencing problems related to poor IEQ in the school, including sinus cancer, memory problems, inability to concentrate, metallic taste, bleeding lungs, dizziness, depr ...
    Public Domain
  • Volatile Metabolites Produced by Stachybotrys chartarum on Rice and Gypsum Board
    Volatile Metabolites Produced by Stachybotrys chartarum on Rice and Gypsum Board
    Gao, Peng-Fei ;
    Martin, Jennifer E.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    Concerns about the adverse health effects associated with fungal exposure in homes and the workplace have increased in recent years. Cases of pulmonary hemosiderosis among infants have been attributed to exposure to Stachybotrys chartarum in water-damaged buildings. Although microbial volatile organic compounds (MVOCs) have been used as an indicato ...
    Public Domain
  • Alternatives to chlorinated solvents the use of 1bromopropane npropyl bromide in spray adhesives
    Alternatives to chlorinated solvents: the use of 1-bromopropane (npropyl bromide) in spray adhesives
    Reh, Christopher M.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    For many years, 1,1,1-trichloroethane and methylene chloride were used in various industries. Due to international concerns of stratospheric ozone depletion, production of 1,1,1-trichloroethane was banned in 1996. Also, OSHA recently promulgated regulations on methylene chloride exposures and use. Considering this, suitable alternatives are being c ...
    Public Domain
  • Laboratory evaluation of three personal heat strain monitors in young and older wearers of protective clothing
    Laboratory evaluation of three personal heat strain monitors in young and older wearers of protective. clothing
    Eschenbacher, William L. ;
    Freeland D
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    NIOSH has recommended that worker-acceptable physiological monitoring may be an effective alternative to environmental monitoring in extreme environmental conditions. This study evaluated the accuracy of three commercial personal heat strain monitoring systems: 1) Metrosonics hs-3800; 2) MiniMitter Vital Sense; and 3) Questemp II. Seven young (25-4 ...
    Public Domain
  • Severe fungal contamination of a hotel resulting from an EFIS system failure environmental characterization and clinical outcomes
    Severe fungal contamination of a hotel resulting from an EFIS system failure: environmental characterization and clinical outcomes
    Martinez, Kenneth F. ;
    Trout, Douglas B.
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    In the fall of 1998, NIOSH responded to a request for technical assistance from a municipal health department to evaluate a hotel following identification of significant fungal contamination on interior surfaces of outdoor-facing walls of the structure. The fungi were suspected to have proliferated following extensive water incursion at the seams o ...
    Public Domain
  • Evaluation of health hazards in new residential construction
    Evaluation of health hazards in new residential construction
    McKernan, John
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    Since 1994, an annual average of 1.1 million new single-family residential housing units were constructed in the United States. Despite the magnitude of construction in this specific sector, quantitative exposure data are lacking among the approximately 600,000 workers represented by various construction trades. The purpose of this project was to i ...
    Public Domain
  • Filtration efficiency of environmental tractor cab filters
    Filtration efficiency of environmental tractor cab filters
    Martin, Stephen B. Jr. ;
    Moyer E
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    In the United States, more than 5 million workers are involved in agricultural production. NIOSH has a long-standing initiative for investigation and prevention of occupational health and safety problems within the agricultural industry. A key component of this program is protecting the respiratory health of workers in the agricultural industry. Ag ...
    Public Domain
  • National skill standards for workers
    National skill standards for workers
    Haring Sweeney M ;
    Palassis, John
    2000/05/20 | National Institute for Occupational Safety and Health (NIOSH)
    The National Skills Standards Board (NSSB) was established by Congress (Public Law 103-227) to address the future needs of a fast-changing technology and to keep the United States competitive in a global economy. Subsequently, NSSB established guidelines for voluntary, nationwide, unified national skill standards for use in education and the workpl ...
    Public Domain
46781 - 46800 / 82805