A5085029973- Occupational and environmental lung diseases
- Recycling and utilization of industrial and municipal waste in materials production
- Advanced ceramic materials synthesis
- Occupational Health and Safety Research
- Particle Dynamics in Fluid Flows
- Construction Engineering and Safety
- Cyclone Separators and Fluid Dynamics
- Electromagnetic Launch and Propulsion Technology
- Energetic Materials and Combustion
- Air Quality and Health Impacts
- Recycled Aggregate Concrete Performance
- Combustion and Detonation Processes
- Fluid Dynamics and Mixing
- Innovations in Concrete and Construction Materials
National Institute for Occupational Safety and Health
2002-2014
Observations of the size liquid droplets using Aerodynamic Particle Sizer (APS) and Aerosizer indicated that measured was significantly different from aerodynamic diameter as calculated by measuring droplet settling velocity. The shifts appeared to be caused distortion in detector flow field for Aerosizer. However, APS, sizing further affected impaction on upstream side focusing nozzle. It is suggested accumulated constricted nozzle, resulting a particle velocity increase at sensor. shift...
The objective of this study was to quantify the respirable dust and silica exposures roofing workers using an electric-powered circular saw with aftermarket local exhaust ventilation attachment cut concrete tiles. conducted determine whether able control exposure below occupational limits (OELs). Time-integrated filter samples direct reading concentrations were evaluated. consisted a shroud attached cutting plane saw; then connected small electric axial fan, which is intended collect at...
(2002). Control of Silica Exposure in Construction: Scabbling Concrete. Applied Occupational and Environmental Hygiene: Vol. 17, No. 12, pp. 809-813.
(2003). Control of Respirable Dust and Crystalline Silica from Breaking Concrete with a Jackhammer. Applied Occupational Environmental Hygiene: Vol. 18, No. 7, pp. 491-495.