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Health hazard evaluation report: HETA-80-186-1149, TLB Plastics Corporation, Marion, Indiana.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 80-186-1149, 1982 Jul; :1-21
Worker exposures from cellulose acetate propionate extrusion were investigated on August 20, 1980 at TLB Plastics Corporation (SIC- 3070) in Marion, Indiana. Evaluation was requested by the Safety and Health Project Director, Allied Industrial Workers of America for 124 workers concerned about previous ethylene-dichloride (107062) exposure and current ethyl-acetate (141786) exposure. Previous air sampling results were reviewed; air and bulk samples were analyzed for ethyl-acetate. Fifty nine exposed workers completed medical questionnaires; mortality, accident and illness records were evaluated. Previous records indicated airborne ethylene-dichloride concentrations of 22 to 44 parts per million (ppm), NIOSH recommends exposure be kept at the lowest feasible limit. Exposures to ethyl-acetate were below the OSHA limit of 400ppm, no NIOSH standard exists. Symptoms of mucous membrane irritation and respiratory discomfort were inconsistent with chemical exposure concentrations. Analysis of cellulose acetate propionate extrusion emissions revealed exposures to propionic-acid (79094), acetic-acid (64197), and plasticizers. Workers symptoms were associated with increased exposure to fumes. No chronic disease patterns were found; mortality rate was not increased. The authors suggest that health complaints are associated with exposure to plastic emission products. They recommend methods to minimize or eliminate exposure, and increase worker comfort.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; Hazards-Unconfirmed; Plastics-industry; Employee-exposure; Air-quality-measurement; Time-weighted-average-exposure; Work-practices; HETA-80-186-1149; NIOSH-Technical-Assistance-Report; Region-5; Author Keywords: Plastic Molding; Ethylene Dichloride; Ethyl Acetate; Propionic Acid; Acetic Acid; Di(2-Ethylbutyl)azelate; Cellulose Acetate Propionate
107-06-2; 141-78-6; 79-09-4; 64-19-7
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division