Walk-Through Survey, Pure Carbon Company, 441 Hall Avenue, St. Mary's, Pennsylvania, Report No. IWS-142-10.
A walk through survey was conducted at the Pure Carbon Company (SIC- 3624), St. Mary's, Pennsylvania, to determine whether this facility would be suitable for inclusion in a larger study of the carbon products industry. At this location mechanical carbon products were produced such as rings, seals, and bearings from the basic raw materials or calcined petroleum coke and coal tar pitch. Air samples were collected and analyzed for 17 polycyclic aromatic hydrocarbons (PAHs), the highest concentrations of which were found in the baking area. It was not possible to identify the source of these PAHs in this area as 16 of the 17 analyzed for are common to both coal tar pitch and molding flour bulk samples. Benzene solubles detected in the mixing and baking areas ranged from 0.05 to persons in three workshifts. Each employee underwent a preemployment physical. A relocation program was now underway which, when completed, would significantly reduce employee exposure to coal tar pitch volatiles. The author concludes that this facility is not suitable for inclusion, since petroleum pitch is not used. The author recommends that all cleanup processes in the pressing or molding areas of this facility be performed using a vacuum system.
NIOSH-Author; Field-Study; NIOSH-Survey; IWS-142-10; Region-3; Petroleum-products; Coal-products; Dust-control; Machine-shop-workers; Airborne-dusts
Field Studies; Industry Wide
NTIS Accession No.
Division of Surveillance, Hazard Evaluations and Field Studies, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. IWS-142-10, 14 pages, 10 references