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Showing 45401 - 45420 of 82972 results
  • Implementation of an effective low cost engineering control for an HVAC related noise problem at a pediatric hospital
    Implementation of an effective low cost engineering control for an HVAC related noise problem at a pediatric hospital
    Nenadic C ;
    Stephenson, Richard L.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    In follow-up to a request from hospital administration, evaluation of the noise being produced by the HVAC system which serves several executive offices located on the 5th floor of the Outpatient Services Building (OSB) was initiated in October 1999. Octave band and A- and C-weighted sound pressure level measurements were made at various locations ...
    Public Domain
  • A field test for determining respirator filter efficiency
    A field test for determining respirator filter efficiency
    Clegg J ;
    Moyer E
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) certifies negative-pressure particulate respirator filters according to 42 CPR 84. Filters are categorized N, R and P, depending on their resistance to fIlter degradation. N-series fIlters are not resistant to oil, and R-series and P-series filters are recommended for use in all envi ...
    Public Domain
  • Comparison of mist generation rates for microlubrication and flood application of cutting fluids during milling and drilling
    Comparison of mist generation rates for micro-lubrication and flood application of cutting fluids during milling and drilling
    Adams R ;
    Gressel M
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    While cutting fluids have been used since the mid-1800's, their use and formulation have changed dramatically over the years, for both performance and health and safety reasons. In addition to the potential occupational hazards associated with cutting fluids, disposal of the used cutting fluids is also a concern to many machining operations. Microl ...
    Public Domain
  • Lessons learned sampling for bioaerosols in underground coal mines
    Lessons learned: sampling for bioaerosols in underground coal mines
    Cocalis, Joseph C. ;
    Martin, Jennifer E.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Situation: Are miners exposed to atypical levels of bioaerosols in the mine environment? To answer this question, the National Institute for Occupational Safety and Health (NIOSH) developed methods to sample face areas of underground coal mines which use untreated surface water in the dust suppression systems. Problems: Traditional bioaerosol sampl ...
    Public Domain
  • A Laboratory Comparison of the Differential PressureBased Dust Dosimeter with the Personal Gravimetric Respirable Dust Sampler on Coal Dust
    A Laboratory Comparison of the Differential Pressure-Based Dust Dosimeter with the Personal Gravimetric Respirable Dust Sampler on Coal Dust
    He H ;
    Luna P
    2001/06/02 | Mining Publications
    The approved gravimetric respirable dust sampler (GRO), used to measure the amount of respirable dust to which a miner has been exposed, can only provide data on the miner's exposure days after the sample has been taken. It is more desirable to have an instrument that can provide real time personal respirable dust exposure level data so that the mi ...
    Public Domain
  • NIOSH exposure assessment of cellulose insulation applicators
    NIOSH exposure assessment of cellulose insulation applicators
    Fernback, Joseph E. ;
    Hall, Ronald M.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: The National Institute for Occupational Safety and Health (NIOSH) was presented with an opportunity to assist in the evaluation of cellulose insulation (CI) by conducting an exposure assessment of CI applicators through an interagency agreement with the National lnstitute of Environmental Health Sciences/NTP. NIOSH completed the study ...
    Public Domain
  • Selection of a study population of flight crew exposed to cosmic radiation for an epidemiologic study
    Selection of a study population of flight crew exposed to cosmic radiation for an epidemiologic study
    Ward E ;
    Waters M
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Aircraft flight crew are exposed to cosmic radiation of galactic and solar origin, and cosmic radiation dose (CRD) depends primarily on altitude, geomagnetic latitude and solar activity. Epidemiologic studies of flight crew currently underway at NIOSH are evaluating relationships between cumulative CRD and a variety of health outcomes. The quality ...
    Public Domain
  • Particle penetration through intact skin and a method for determining potential exposure through surface contamination
    Particle penetration through intact skin and a method for determining potential exposure through surface contamination
    Berakis, Michael ;
    Kent M
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Results from studies of intact skin samples have shown that particles less than one micrometer in size are capable of penetrating intact skin. This occurs when the skin is flexed, but is not seen when particles are placed on stationary samples. This mechanical transport is capable of moving the particles through the stratum corneum and into the epi ...
    Public Domain
  • An investigation of sizespecific particle concentrations using a realtime monitor in a hospital setting
    An investigation of size-specific particle concentrations using a real-time monitor in a hospital setting
    Berakis, Michael ;
    Kreiss, Kathleen
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Indoor air quality investigations would benefit from direct reading instruments that can quickly identify potential sources. Aerosols are an important factor in many IAQ investigations, being associated with both chemical and microbial contaminants. Particles with aerodynamic diameters <1 micrometer may be a health concern. Since size distributions ...
    Public Domain
  • Exposure surveillance of museum workers to residual pesticides on collections
    Exposure surveillance of museum workers to residual pesticides on collections
    Burroughs G ;
    Makos K
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    From the 18th century to the mid-20th century, a variety of pesticides were commonly applied to organic specimens in museum and academic collections as a preservative and insecticide. Two of the most widely used chemicals were inorganic arsenic, primarily arsenic trioxide, and mercuric chloride. Residual particulates from these compounds, as well a ...
    Public Domain
  • Activities of the NIOSH Hazard Evaluations and Technical Assistance HETA Program
    Activities of the NIOSH Hazard Evaluations and Technical Assistance (HETA) Program
    Hartle, Richard W. ;
    Reh, Beth D.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    This poster summarizes the activities of the Hazard Evaluations and Technical Assistance (HETA) Program of the National Institute for Occupational Safety and Health (NIOSH). The HETA Program responds to requests from employers, employees, employee representatives, other Federal agencies, and State and local agencies. Through a staff of industrial h ...
    Public Domain
  • Performance of N R and Pseries respirator filters against diesel exhaust
    Performance of N-, R- and P-series respirator filters against diesel exhaust
    Berardinelli, Stephen P. Jr. ;
    Martin S Jr.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NlOSH) certifies nonpowered air-purifying particulate respirator filters according to 42 CFR 84. Air-purifying respirator filters are categorized as N-, R- or P- depending on their resistance to degradation. N-series filters are not resistant to oil, and R- and P-series filters are recommen ...
    Public Domain
  • Conversion of particle number to beryllium particle number concentration
    Conversion of particle number to beryllium particle number concentration
    Berakis, Michael ;
    Kent M
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Previous work has hypothesized that beryllium particle number may be the proper exposure metric for inhaled dose. The difficulty has been in obtaining an estimate of the beryllium number concentration. We are now able to obtain the beryllium mass and total mass using a polycarbonate substrate material for Microorifice Uniform Deposit Impactor (MOUD ...
    Public Domain
  • Benzene uptake among automobile mechanics concentrations in exhaled breath using a selfadministered sampling technique
    Benzene uptake among automobile mechanics: concentrations in exhaled breath using a self-administered sampling technique
    Egeghy P ;
    Gwin, Kristin K.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Automobile mechanics constitute a large population of workers exposed to benzene, a known human carcinogen, through their contact with gasoline vapor and automobile exhaust. However, little has been reported on the benzene uptake associated with these exposures. We used self-administered monitoring, a technique which has been gaining popularity in ...
    Public Domain
  • Surface contamination and skin exposure to aliphatic isocyanates in auto body shops a quantitative assessment
    Surface contamination and skin exposure to aliphatic isocyanates in auto body shops: a quantitative assessment
    Bello D ;
    Boeniger, Mark F.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Little has been done to quantify surface contamination and skin exposure to aliphatic isocyanates in auto body shops and to evaluate the effectiveness of personal protective equipment (PPE). The purpose of this study was to quantitatively evaluate such contamination and exposure in 20 shops that participated in a large epidemiological study on isoc ...
    Public Domain
  • An Environmental Tractor Cab System Integrity Test
    An Environmental Tractor Cab System Integrity Test
    Heitbrink, William A. ;
    Jensen, Paul A.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    In the United States, more than five million workers are involved in agriculture. The National Institute for Occupational Safety and Health (NIOSH) has a long-standing initiative for investigation and prevention of occupational safety and health problems within the agricultural industry. A key component of this program is protecting the respiratory ...
    Public Domain
  • Whats the Difference Comparing Surveys of Industrial Respirator Use
    What’s the Difference? Comparing Surveys of Industrial Respirator Use
    Bang K ;
    Doney B
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    This report compares the findings of several nationwide surveys of respirator use, and explores the possible reasons for differences in the findings of those surveys. The comparison was carried out in preparation for a new nationwide survey of respirator use. The primary types of survey data sought for comparison were those relating to the percenta ...
    Public Domain
  • Health care workers exposures to nitric oxide nitrogen dioxide and nitric acid during inhaled nitric oxide therapy
    Health care workers' exposures to nitric oxide, nitrogen dioxide, and nitric acid during inhaled nitric oxide therapy
    Delaney, Lisa J.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Background: In December 1999, the U.S. Food and Drug Administration approved the use of inhaled nitric oxide (INO) therapy to treat respiratory failure in infants and young children. Few studies have been conducted to evaluate the potential for exposure to nitric oxide (NO) in health care workers treating these patients. The drug consists of a mixt ...
    Public Domain
  • The use of cab enclosures for exposure control during composting
    The use of cab enclosures for exposure control during composting
    Burkhart, Joseph E. ;
    Kullman, Greg J.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Industrial hygiene surveys were conducted at 3 composting operations through the National Institute for Occupational Safety and Health (NIOSH) Health Hazard Evaluation Program. These facilities composted green wastes, wood chips, and sewage sludge to produce Class A compost. Measurements were taken for respirable and total dust, endotoxins, cultura ...
    Public Domain
  • Evaluation of New Strategies for Measuring Freon113 Exposure Dose to Be Correlated to Quantitative Fit Factor
    Evaluation of New Strategies for Measuring Freon-113 Exposure Dose to Be Correlated to Quantitative Fit Factor
    Campbell, David D. ;
    Coffey, Christopher C.
    2001/06/02 | National Institute for Occupational Safety and Health (NIOSH)
    Recent NIOSH research has found correlation between fit factors of the corn oil and ambient aerosol fit-test methods and the wearers' Freon-113 exposure doses while wearing negative-pressure, half-facepiece respirators (assigned protection factor: 10). However, the biological monitoring strategies and methods for measuring exposure dose of Freon-11 ...
    Public Domain
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