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Showing 121 - 140 of 82972 results
  • PPE CASE Performance Testing of Fraudulent Respirator P100 Filters Organic Vapor Chemical Cartridges and Combination Cartridges
    PPE CASE: Performance Testing of Fraudulent Respirator P100 Filters, Organic Vapor Chemical Cartridges, and Combination Cartridges
    Andrews, Angela S. ;
    Kiederer, Meghan
    2025/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    This report details the results of inhalation and exhalation resistance, filtration performance, and organic vapor (OV) service life testing on NIOSH Approved® and fraudulent respirator P100 filters, chemical cartridges, and combination cartridges. During public health emergencies and subsequent respirator supply shortages, respirators that misrepr ...
    Public Domain
  • PPE CASE Notes Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requriements Combination Cartridges
    PPE CASE Notes: Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requriements: Combination Cartridges
    National Institute for Occupational Safety and Health
    2025/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) continues to identify fraudulent cartridges and filters on the market. These products falsely indicate that they have been tested and approved by NIOSH, giving purchasers a false sense of confidence in the level of protection they provide. Additionally, NIOSH has identified several i ...
    Public Domain
  • PPE CASE Notes Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requriements Chemical Cartridges
    PPE CASE Notes: Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requriements: Chemical Cartridges
    National Institute for Occupational Safety and Health
    2025/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) continues to identify fraudulent cartridges and filters on the market. These products falsely indicate that they have been tested and approved by NIOSH, giving purchasers a false sense of confidence in the level of protection they provide. Additionally, NIOSH has identified several i ...
    Public Domain
  • PPE CASE Notes Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requriements P100 Filters
    PPE CASE Notes: Fraudulent Cartridges and Filters Fail to Meet NIOSH Performance Requriements: P100 Filters
    National Institute for Occupational Safety and Health
    2025/09/01 | National Institute for Occupational Safety and Health (NIOSH)
    The National Institute for Occupational Safety and Health (NIOSH) continues to identify fraudulent cartridges and filters on the market. These products falsely indicate that they have been tested and approved by NIOSH, giving purchasers a false sense of confidence in the level of protection they provide. Additionally, NIOSH has identified several i ...
    Public Domain
  • Quantitative Headform Fit Evaluation and Predictive Modeling to Assist with Selecting N95 Filtering Facepiece Respirators to Mitigate Respiratory Hazards
    Quantitative Headform Fit Evaluation and Predictive Modeling to Assist with Selecting N95 Filtering Facepiece Respirators to Mitigate Respiratory Hazards
    Vollmer, Brooke ;
    Bergman, Michael S.
    2025/08/27 | National Institute for Occupational Safety and Health (NIOSH)
    Ensuring that respiratory protection is effective for all can be difficult if limited resources are available to assist with selecting a well-fitting respirator model and user guidance. To better understand how various N95® filtering facepiece respirator models fit on a variety of face sizes, a quantitative fit evaluation was performed on 12 differ ...
    Public Domain
  • Compatibility of Engineered Stone Materials with a Tetrahydrofuran Processing for Crystalline Silica Analysis by XRD
    Compatibility of Engineered Stone Materials with a Tetrahydrofuran Processing for Crystalline Silica Analysis by XRD
    Wang, Chen ;
    Rishi, Kabir
    2025/08/23 | National Institute for Occupational Safety and Health (NIOSH)
    This study investigated the compatibility of Tetrahydrofuran (THF) dissolution, following the procedures outlined in NIOSH Method 7500 and the similar OSHA ID-142 method, as a sample preparation technique for respirable crystalline silica (RCS) analysis in engineered stone materials compared to the muffle furnace (MF) ashing method. Our results rev ...
    Public Domain
  • Rapid and Sensitive Detection of Wood Smoke Exposure Biomarkers Using Europium Fluorescent Nanoparticle LabelLateral Flow Immunoassay
    Rapid and Sensitive Detection of Wood Smoke Exposure Biomarkers Using Europium Fluorescent Nanoparticle Label/Lateral Flow Immunoassay
    Du D ;
    Fu Y
    2025/08/15 | National Institute for Occupational Safety and Health (NIOSH)
    Exposure to wood smoke is associated with various adverse health problems. Biomonitoring of smoke exposure-associated biomarkers provides accurate measurements of personally absorbed doses. As a specific metabolite of benzene, the quantitative measurement of S-phenylmercapturic acid (S-PMA) plays a vital role in evaluating human exposure to wood sm ...
  • Exploring the Future of Occupational Safety Research A Strategic Foresight Approach
    Exploring the Future of Occupational Safety Research: A Strategic Foresight Approach
    Streit, Jessica M. K. ;
    Felknor, Sarah A.
    2025/08/14 | National Institute for Occupational Safety and Health (NIOSH)
    A team from the U.S. National Institute for Occupational Safety and Health conducted a strategic foresight project to explore the future of occupational safety research (OSR). Data collected via systematic horizon scanning and key informant interviews were synthesized into six drivers of OSR change: (1) technological advancement, (2) partnerships a ...
    Public Domain
  • Health Hazard Evaluation Program Evaluation of Workplace Exposures in a School Ceramics and Visual Arts Studio HHE202300693420
    Health Hazard Evaluation Program: Evaluation of Workplace Exposures in a School Ceramics and Visual Arts Studio [HHE-2023-0069-3420]
    O'Connor, M. Colleen ;
    Rinsky, Jessica L.
    2025-08-01 | Health Hazard Evaluation Reports (HHE)
    Management of a school requested a health hazard evaluation of their ceramics and visual arts studio. They were interested in an assessment of potential exposures related to ceramics, including exposure to respiratory hazards such as respirable crystalline silica. We visited the school to learn more about the art studio space, potential hazards, an ...
    Public Domain
  • Health Hazard Evaluation Program Evaluation of Noise Exposures at a Metal Walkway Manufacturer HHE202101383423
    Health Hazard Evaluation Program: Evaluation of Noise Exposures at a Metal Walkway Manufacturer [HHE-2021-0138-3423]
    Charles, Melissa ;
    Hayden, Marie A.
    2025-08-01 | Health Hazard Evaluation Reports (HHE)
    Employees of a metal walkway manufacturer confidentially requested a health hazard evaluation due to concerns about the potential for hearing loss from noise exposures in production areas of the facility. The company manufactured metal walkways and mezzanines from sheet metal using equipment such as reticulators (equipment which perforates metal), ...
    Public Domain
  • Health Hazard Evaluation Report No 202300843425 Evaluation of Exposure to Metals and Noise During Shipbuilding and Ship Repair Operations
    Health Hazard Evaluation Report No. 2023-0084-3425: Evaluation of Exposure to Metals and Noise During Shipbuilding and Ship Repair Operations
    Methner, Mark M. ;
    Brueck, Scott E.
    2025/08/01 | Health Hazard Evaluation Reports (HHE)
    The National Institute for Occupational Safety and Health received a request for a health hazard evaluation (HHE) from an employer representative at a shipbuilding and ship repair company. The request concerned potential exposure to airborne metals and noise during various shipbuilding and ship repair activities. We initially visited each facility ...
    Public Domain
  • Health Hazard Evaluation Report No 202100053426 Ergonomic and Musculoskeletal Evaluation of an Aircraft Distribution Center
    Health Hazard Evaluation Report No. 2021-0005-3426: Ergonomic and Musculoskeletal Evaluation of an Aircraft Distribution Center
    Ramsey, Jessica G.
    2025/08/01 | Health Hazard Evaluation Reports (HHE)
    Management and union representatives at an aircraft distribution center requested a health hazard evaluation. They were concerned about ergonomic risk factors and potential musculoskeletal injuries among employees who performed material handling duties. We visited the facility to evaluate ergonomic hazards and musculoskeletal health symptoms of emp ...
    Public Domain
  • N95 Filtering Facepiece Respirator Contamination with SARSCoV2 Following Reuse and Extended Use
    N95® Filtering Facepiece Respirator Contamination with SARS-CoV-2 Following Reuse and Extended Use
    Ford, James S. ;
    Wang, Ralph C.
    2025/08/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: During the COVID-19 pandemic, the United States Centers for Disease Control and Prevention provided strategies, such as extended use and reuse, to preserve N95 filtering facepiece respirators (FFR). We aimed to assess the prevalence of N95 FFR contamination with SARS-CoV-2 among healthcare personnel (HCP) in the Emergency Department (ED) ...
    Public Domain
  • Dynamic Bayesian Learning for Spatiotemporal Mechanistic Models
    Dynamic Bayesian Learning for Spatiotemporal Mechanistic Models
    Banerjee, Sudipto ;
    Chen, Xiang
    2025/07/25 | National Institute for Occupational Safety and Health (NIOSH)
    We develop an approach for Bayesian learning of spatiotemporal dynamical mechanistic models. Such learning consists of statistical emulation of the mechanistic system that can efficiently interpolate the output of the system from arbitrary inputs. The emulated learner can then be used to train the system from noisy data achieved by melding informat ...
  • Capturing and Converting CO2 Using Amino Acids as Various Commercially Valuable NanoCarbonates
    Capturing and Converting CO2 Using Amino Acids as Various Commercially Valuable Nano-Carbonates
    Li B ;
    Li Q
    2025/07/19 | National Institute for Occupational Safety and Health (NIOSH)
    Carbon dioxide (CO2) is the most significant greenhouse gas and one of the strategies to reduce CO2 emission is to convert CO2 into commercially valuable products. Currently, methods that can effectively capture and convert CO2 into carbonate nanomaterials, which have unique applications in various fields, have rarely been reported, and there are n ...
    Public Domain
  • Associations Between US HighSchool Student and Parental Job Loss During the COVID19 Pandemic and Student Substance Use Adolescent Behaviors and Experiences Survey ABES 2021
    Associations Between U.S. High-School Student and Parental Job Loss During the COVID-19 Pandemic and Student Substance Use: Adolescent Behaviors and Experiences Survey (ABES), 2021
    Shockey TM ;
    Silver, Sharon R.
    2025/07/03 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Job loss among both adults and adolescents increased markedly early in the COVID-19 pandemic. While parental job loss has been associated with the adverse effects, including adolescent substance use, no research is available on the effects of adolescent job loss on substance use. Methods: Analyses of Adolescent Behaviors and Experiences ...
    Public Domain
  • Line of Duty Death Report Career Lieutenant Dies and Five Injured in Structural Collapse of MixedUse Occupancy During Cause and Origin Investigation Pennsylvania
    Line of Duty Death Report: Career Lieutenant Dies and Five Injured in Structural Collapse of Mixed-Use Occupancy During Cause and Origin Investigation – Pennsylvania
    Ringer, Stephen J. ;
    Loflin, Murrey E.
    2025-07-01 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    On June 18, 2022, at approximately 01:53 hours, the Fire Communications Center (FCC) dispatched Box 443 in response to a reported fire in a third-floor apartment, with initial reports indicating potential trapped occupants. Multiple units responded immediately. Engine 2 (E2) arrived on the scene within four minutes of dispatch, reporting smoke cond ...
    Public Domain
  • Improving the Usability of Large Emergency 911 Data Reporting Systems A Machine Learning Case Study Using Emergency Incident Descriptions
    Improving the Usability of Large Emergency 911 Data Reporting Systems: A Machine Learning Case Study Using Emergency Incident Descriptions
    Furek A ;
    Haas, Emily J.
    2025/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: Emergency 9-1-1 incident data are recorded voluntarily within fire-department-specific computer-aided dispatch systems. The National Fire Incident Reporting System serves as a repository for these data, but inconsistency and variability in reporting practices across departments often lead to challenges in data quality and utility. Thi ...
    Public Domain
  • DaytoDay Dynamics of Facial Emotion Expressions in Posttraumatic Stress Disorder
    Day-to-Day Dynamics of Facial Emotion Expressions in Posttraumatic Stress Disorder
    Feltman S ;
    Khudari C
    2025/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Facial expressions are an essential component of emotions that may reveal mechanisms maintaining posttraumatic stress disorder (PTSD). However, most research on emotions in PTSD has relied on self-reports, which only capture subjective affect. The few studies on outward emotion expressions have been hampered by methodological limitations, including ...
  • The Association of Public Safety Power Shutoffs and Motor Vehicle Crashes
    The Association of Public Safety Power Shutoffs and Motor Vehicle Crashes
    Berman JD ;
    Erickson DJ
    2025/07/01 | National Institute for Occupational Safety and Health (NIOSH)
    Introduction: Utility companies in California de-energize equipment during periods of high wildfire risk. These Public Safety Power Shutoffs (PSPS) are designed to prevent power lines from igniting wildfires. The loss of electricity and subsequent failure of traffic signals may increase the risk of motor-vehicle crashes. Methods: We determined the ...
121 - 140 / 82972