Effective controls for air contaminants in the tire manufacturing industry (SIC-3011) were evaluated. An indepth facility survey was performed at Goodyear Tire and Rubber Company, Union City, Tennessee on January 7 to 17, 1980. The controls for the following unit operations were evaluated: curing press, cementing, repair table, calendering, roller die festoon, mixing, pelletizer, and compound weighing. These controls included automatic compound weighing and packaging systems, mixer ventilation, roller die festoon hood, understock cementer hood, three roll calender ventilation system, general dilution makeup air system for a row of curing presses, defect repair table hood, and a cement house ventilation system. Detailed information regarding industrial hygiene sampling, ventilation data for the engineering controls, and observations of work practices was provided. In the cement house for example, background solvent concentrations were probably the major source of the workers' exposure. The ventilation system's performance was significantly less than that specified by the company. Many of the local exhaust hoods were found to be operating at less than 50 percent of the design specifications.
Engineering Control Technology Branch, NIOSH, Cincinnati, Ohio, NTIS PB83-162-941, 189 pages