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Showing 43961 - 43980 of 82803 results
  • Regarding the Sources of Data Analyzed with Quantitative StructureSkin Permeability Relationship Methods Commentary on Investigation of the Mechanism of Flux Across Human Skin In Vitro by Quantitative StructurePermeability Relationships
    Regarding the Sources of Data Analyzed with Quantitative Structure-Skin Permeability Relationship Methods (Commentary on ‘Investigation of the Mechanism of Flux Across Human Skin In Vitro by Quantitative Structure-Permeability Relationships’)
    Frasch, H. Fredrick ;
    Landsittel DP
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    We investigated the sources of data used in recently published predictive models of skin permeability. It was found that skin permeability coefficients for 63 compounds are poorly documented. We hypothesized that these coefficients were calculated using the simple two variable, three parameter 'Potts and Guy' regression equation and hence were not ...
    Public Domain
  • Personal Exposure to Polycyclic Aromatic Compounds and Particle Size Distributions in Asphalt Paving Fume
    Personal Exposure to Polycyclic Aromatic Compounds and Particle Size Distributions in Asphalt Paving Fume
    Fernback, Joseph E. ;
    Hanley, Kevin W.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Asphalt fume is a complex mixture of aliphatic and aromatic hydrocarbons, cyclic alkanes, and heterocyclic compounds containing S, N, or O. Irritation has been reported and low levels of possible carcinogenic polycyclic aromatic compounds (PAC) are present in asphalt fume. The objective of this study was to measure the particle size of asphalt pavi ...
    Public Domain
  • Comparison of Five Methods for FitTesting N95 FilteringFacepiece Respirators Alternate Approaches
    Comparison of Five Methods for Fit-Testing N95 Filtering-Facepiece Respirators – Alternate Approaches
    Campbell, David D. ;
    Coffey, Christopher C.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A previous study had determined the ability of five fit-test methods (Bitrex, saccharin, PortaCount Plus corrected for filter penetration, PortaCount Plus/N95-Companion, and generated aerosol) to screen out poorly fitting N95 filtering-facepiece respirators. The results were compared to the 5th percentile of the simulated workplace protection facto ...
    Public Domain
  • Selection of Protective Gloves
    Selection of Protective Gloves
    El-Ayouby N
    2002/06/01 | Mining Publications
    Skin disorders resulting from hazardous exposures in the workplace account for 15% to 20% of all reported occupational diseases. Irritant and allergic contact dermatitis and bum injuries caused by chemicals account for about 50% of the skin disorder. A variety of protective gloves are available in the marketplace. However, the user must know the cr ...
    Public Domain
  • A Field Test of Two MoistCloth Wipes for Sampling Lead in Surface Dust
    A Field Test of Two Moist-Cloth Wipes for Sampling Lead in Surface Dust
    Ewers, Lynda M.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A recent NIOSH health hazard evaluation, conducted for a small neon-sign manufacturer, provided an opportunity to compare two moist cloth wipes (Ghost wipes and Wash'n Dri) used to sample lead (Pb) in surface dust (NIOSH Method 9100). Each of two work surfaces (right and left) was sampled using a template in four side-by-side locations. In one of t ...
    Public Domain
  • The Use of Light Scattering and Ion Chamber Responses for the Detection of Fires in Diesel Contaminated Atmospheres
    The Use of Light Scattering and Ion Chamber Responses for the Detection of Fires in Diesel Contaminated Atmospheres
    Litton, Charles D.
    2002/06/01 | Mining Publications
    Experiments were conducted to determine the optical scattering properties of diesel particulate matter (DPM) and various combustion aerosols from both flaming and smoldering combustion sources at discrete angles of 15 degrees and 30 degrees in the forward direction and at a light source wavelength of 635 nm using a simple light scattering module. I ...
    Public Domain
  • Cost of Agricultural Injuries and Occupational Diseases in Finland
    Cost of Agricultural Injuries and Occupational Diseases in Finland
    Burmeister L ;
    Donham, Kelley
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background. Agriculture is a hazardous occupation, however, little cost information exists and interventions are often planned in the absence of cost data. This study was designed to provide cost information for targeting research and intervention. The study used 1996 claims data (n=10,992) from the Finnish farmers workers compensation, which cover ...
  • Massachusetts Welders Killed in Explosions Caused by Torch Cutting Containers
    Massachusetts Welders Killed in Explosions Caused by Torch Cutting Containers
    2002/06/01 | Fatality Assessment and Control Evaluation Reports (FACE)
    Background: Torch cutting on "empty" containers such as tanks, drums, barrels or pipes can be extremely dangerous. Small amounts of substances remaining in containers can create serious explosion hazards for welders. During the last two years (2000- 2001) three welders in Massachusetts were fatally injured while torch cutting on metal containers at ...
  • Design and Operation of a Popcorn Butter Flavoring Inhalation Exposure System
    Design and Operation of a Popcorn Butter Flavoring Inhalation Exposure System
    Frazer D ;
    Goldsmith T
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Respiratory disease has been reported in several workers in a microwave popcorn plant. As part of a request to NIOSH to find the cause, extensive medical and environmental measurements were made at the facility. High levels of organic gases and decreased pulmonary function among workers were measured and presumed to be associated with butter flavor ...
    Public Domain
  • Measuring Airborne Metals at Mining Sites Using Portable Instruments Advantages and Potential Problems
    Measuring Airborne Metals at Mining Sites Using Portable Instruments: Advantages and Potential Problems
    Drake P
    2002/06/01 | Mining Publications
    Field Portable Technologies: 1. Allow rapid determination of airborne metal concentrations in mines and refineries; 2. Allow immediate assessment of potential overexposures; and, are 3. Able to implement and evaluate interventions in a timely manner. [Description provided by NIOSH]
    Public Domain
  • Silica Exposures for Sandblasters A WebBased Introduction to Occupational Epidemiology and Industrial Hygiene
    Silica Exposures for Sandblasters: A Web-Based Introduction to Occupational Epidemiology and Industrial Hygiene
    Lentz T ;
    Malit B
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Exposure to airborne crystalline silica is a serious occupational hazard potentially affecting at least 1.7 million U.S. workers, many of whom are exposed to concentrations that exceed limits defined by current regulations and standards. Each year, more than 200 silicosis-associated deaths still occur, and an unknown number of workers continue to d ...
    Public Domain
  • Glove Permeation and Determination of Benomyl in Benlate 50 WP Pesticide Formulation by GCMS and GCEC
    Glove Permeation and Determination of Benomyl in Benlate 50% WP Pesticide Formulation by GC-MS and GC-EC
    Que Hee SS ;
    Zainal H
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Benomyl is the active ingredient of the pesticide, Benlate 50% WP. Long-term human skin exposure to Benlate 50% WP causes skin irritation. Benomyl is a suspected carcinogen. The aim of this study was to investigate the protectiveness of gloves used by farm workers, pesticide sprayers, and formulators. A sensitive analytical technique was first deve ...
  • Calculation of Leakage and Particle Loss in Filter Cassettes
    Calculation of Leakage and Particle Loss in Filter Cassettes
    Baron, Paul A. ;
    Bennett JS
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Experimental evidence of aerosol bypass leakage around the filter in plastic filter cassettes prompted an investigation using computational fluid dynamics to explain particle penetration through the leak. Axi-symmetric models of a cassette with several leak dimensions were constructed. The models predicted that submicrometer particles penetrated th ...
    Public Domain
  • Can Health Promotion at the Workplace Help Prevent Cancer
    Can Health Promotion at the Workplace Help Prevent Cancer?
    Stayner L ;
    Vainio H
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    The workplace has become an increasingly important site for disseminating health information and implementing health promotion activities. The creation of "healthy workplaces" must include the preven tion of occupational disease and injury, as well as the promotion of positive healthy life-style behavior. Approaching cancer prevention in a comprehe ...
    Public Domain
  • When Clean Is Not Really Clean Results of Hand Wipe Samples for Lead
    When Clean Is Not Really Clean – Results of Hand Wipe Samples for Lead
    Burr, Gregory A. ;
    Esswein, Eric J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    NIOSH investigators conducted a health hazard evaluation at a manufacturer of industrial lead-acid batteries used for motor-powered applications and stationary installations. Workers were concerned about potential health hazards with the manufacture of lead-acid batteries. In addition to air monitoring, a total of 49 hand and surface wipe samples f ...
    Public Domain
  • Alternative Filters for Crystalline Silica Analysis
    Alternative Filters for Crystalline Silica Analysis
    Archibald M ;
    Key-Schwartz, Rosa J.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    X-ray diffraction analysis of crystalline silica is currently accomplished by deposition of the sample onto silver membrane filters. An alternative type of filter has been investigated for use in X-ray diffraction analysis. A thin layer of silver was evaporatively coated onto polypropylene and nylon capillary pore filters. Scanning electron microsc ...
    Public Domain
  • Performance Criteria and Characteristics of Field Screening Test Methods
    Performance Criteria and Characteristics of Field Screening Test Methods
    Ashley, Kevin E. ;
    Schlecht, Paul C.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    Field screening test methods are often used in environmental and industrial hygiene applications for the on-site detection and/or measurement of toxic substances. On-site screening tests are carried out in the field in order to estimate the contents of toxic chemicals in environmental matrices, or to estimate human exposure to toxic species, so tha ...
    Public Domain
  • Exposure to Octylphenol Increases Basal Testosterone Formation by Cultured Adult Rat Leydig Cells
    Exposure to Octylphenol Increases Basal Testosterone Formation by Cultured Adult Rat Leydig Cells
    Derk RC ;
    Murono EP
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    4-Tert-octylphenol (OP) is a breakdown product of 4-tert-octylphenol ethoxylate, which is a surfactant additive widely used in the manufacture of a variety of detergents and plastic products. OP has been reported to exhibit weak estrogenic activity in many assay systems. The studies described herein examined an unusual effect of OP in increasing co ...
    Public Domain
  • The Relationships Between Biomechanical and Postural Stresses Musculoskeletal Injury Rates and Perceived Body Discomfort Experienced by Industrial Workers A Field Study
    The Relationships Between Biomechanical and Postural Stresses, Musculoskeletal Injury Rates, and Perceived Body Discomfort Experienced by Industrial Workers: A Field Study
    Alhemood A ;
    Genaidy A
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    A combination of archival, subjective, and observational field data collection methods were used to investigate the relationship between biomechanical and postural stresses, and the resulting physical strain experienced by industrial workers of a packaging plant. Assessment of physical strain was based on the number and incidence rate of Occupation ...
  • NIOSH Indoor Air Quality Investigation of a Hurricane Damaged Outpatient Clinic in the United States Virgin Islands
    NIOSH Indoor Air Quality Investigation of a Hurricane Damaged Outpatient Clinic in the United States Virgin Islands
    Burr, Gregory A. ;
    Martinez, Kenneth F.
    2002/06/01 | National Institute for Occupational Safety and Health (NIOSH)
    In May 2000, NIOSH investigators responded to a request from employees in an outpatient clinic on the island of Saint Croix, United States Virgin Islands. Employees believed their headaches, coughing, rash, itching, infections, respiratory problems, and eye irritations, were related to working in this building. Air sampling was conducted for cultur ...
    Public Domain
43961 - 43980 / 82803