Industrial Hygiene Report: Preliminary Survey of Wood Preservative Treatment Facility at Cascade Pole Company, McFarland Cascade, Tacoma, Washington, May 30, 1980

摘要

Harmful exposures to wood preserving chemicals were investigated at the Cascade Pole Company in Tacoma, Washington on May 30, 1980. Approximately 18 employees worked in areas of potential exposure. Area air samples were collected from the tap of cylinder doors and during the opening of cylinders during ammonical-copper-arsenate (ACA) and chromated-copper-arsenate (CCA) processing. Air samples also were collected from the top of treated wood storage areas and wipe samples were collected from ACA and CCA processed woods. Samples were analyzed for copper (Cu), creosote, pentachlorophenol (PCP), chrome (Cr), and arsenic (As). All air samples were undetectable for Cu, As, and PCP. Creosote concentrations at the cylinder and on treated wood were 3.94 and 2.12 milligrams per cubic meter were measured gravimetrically and by ultraviolet light. Wipe samples from CCA and ACA treated woods contained trace amounts of Cu, Cr, and As ranging from 19 to 240 micrograms, with the highest concentrations found after ACA treatment. The authors conclude that the treated lumber presents a potential skin exposure problem which would be eliminated by wearing protective gloves.