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Results 431 - 440 of 580
NIOSH's Pittsburgh Research Laboratory (PRL) and the Mine Safety and Health Administration (MSHA) conducted joint research on post-explosion dust samples. The data will aid in future forensic investigations of accidental coal mine dust explosions.
This research determined noise exposures of equipment operators while documenting worker task. The types of equipment studied included asphalt pavers, backhoes, bulldozers, compaction equipment, excavators, haul trucks, and wheeled loaders.
Researchers at NIOSH have long used stationary tapered element oscillating microbalances (TEOMs®) in laboratory settings. They have served to assess the mass concentration of laboratory-generated particulates in experimental dust chambers and ...
5/1/2007 - Peer reviewed journal articlesThis paper summarizes a NIOSH investigation of engineering noise controls to reduce sound levels in cabs on air-rotary drill rigs. Results revealed that some drillers are exposed to A-weighted sound levels exceeding 85 dB even though a cab is used.
Comparing Measurements of Carbon in Diesel Exhaust Aerosols Using the Aethalometer, NIOSH Method 5040, and SMPSThe objective of this paper is to compare the results among (1) a NIOSH published standard to determine the mass of EC and OC on filter samples, (2) the aethalometer, which uses light extinction to measure "black carbon" or BC, and (3) measuring particl...
A quick, safe, and effective method has been developed that allows workers to clean their dust laden work clothing periodically throughout the day.
The Fate of Metal (Fe) During Diesel Combustion: Morphology, Chemistry, and Formation Pathways of NanoparticlesThis report describes an investigation in which NIOSH used iron-doped diesel fuel to generate metal-bearing diesel particles and a subsequent analysis of the particles using transmission electron microscopy (TEM) and energy-dispersive spectroscopy (EDS).
Effectiveness of Various Concentrations of an Inert Gas Mixture for Preventing and Suppressing Mining Equipment Cab Fires: Development of a Dual-Cab Fire Inerting System3/1/2007 - Peer reviewed journal articlesNIOSH conducted large-scale experiments to evaluate the effectiveness and safety of various concentrations of an inert gas mixture for preventing and suppressing cab fires. This has led to the choice of an optimum gas mixture concentration.
2/1/2007 - Peer reviewed journal articlesIn 2000, NIOSH initiated a long-term project to demonstrate how to implement an ergonomics process to identify and reduce exposures to ergonomic risk factors found in mining. This paper discusses how a coal mine implemented an ergonomics program.
1/1/2007 - Peer reviewed journal articlesA roof-fall hazard-assessment technique was developed based on engineering judgment acquired from extensive underground stone mine experience and on examination of the literature. The technique uses observational processes to assess roof fall hazard.