US EPA

1322669 

Technical Report 

Health Hazard Evaluation Report HETA 92-090-2296, General Castings-Toledo Street Facility, Delaware, Ohio 

Burton, NC; Hall, R; Kinnes, G; Todd, W 

1993 

Burton, NC; Hall, R; Kinnes, G; Todd, W 

NTIS/02989479_2 

GRA and I 

GRA and I 

In response to a request from management, an investigation was begun into worker exposures at the Toledo Street Facility of General Castings (SIC-3321), Delaware, Ohio. The facility was a gray and ductile iron foundry with 55 workers on three shifts. Personal breathing zone concentrations of respirable silica (14808607) ranged from 31 to 284 micrograms per cubic meter microgram/cubic m as time weighted averages (TWAs). Of the 16 nearly full shift samples taken, six exceeded the OSHA Permissible Exposure Limit of 100 microgram/cubic m. The authors conclude that there was a hazard from respirable silica, carbon-monoxide, formaldehyde, and benzene exposures in the coremaking, molding, and shakeout areas. The authors recommend that engineering controsl, an improved respiratory protection program, and improved work practices be implemented to reduce exposures. 

Occupational safety and health; *Foundries; *Industrial hygiene; *Air pollution monitoring; Occupational exposure; Foundry practice; Foundry core making; Molding materials; Air sampling; Organic solvents; Dusts; Indoor air pollution; Metals; Benzene; Formaldehyde; Phenols; Propanols; Carbon monoxide; Respiratory diseases; Silicosis; Delaware(Ohio); SIC-3321; EPA Region 5; CAS No; 14808-60-7; 71432S; 50000; 630080