Industrial Hygiene Survey of the Triangle Brick Company, Durham, North Carolina.
NIOSH 1976 Feb; :1-4
Worker exposures to silica (7631869) were surveyed on August 4 to 8, 1975, at Triangle Brick Company (SIC-3255) in Durham, North Carolina. Personal respirable samples were collected for 12 workers. Dust concentrations ranged from 0.0 to 1.78 milligrams per cubic meter, and contained 0.0 to 0.162 milligrams per cubic meter of silicon dioxide. Three samples exceeded the threshold limit value (unspecified). The author concludes that a nuisance dust hazard exists at this facility. Recommendations include improvement of the material transport system, enclosure of transfer points, separation of dusty and nondusty operations, and installation of exhaust ventilation in the work area.
NIOSH-Author; NIOSH-Survey; Field-Study; IWS-30-18; Region-4; Health-survey; Silicates; Mineral-dusts; Dust-exposure; Brick-kilns; Air-sampling; Dust-analysis; Industrial-hygiene; Worker-health;
NTIS Accession No.
Environmental Investigations Branch Division of Field Studies and Clinical Investigations National Institute for Occupational Safety and Health Cincinnati, Ohio