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Industrial hygiene sampling survey report of Hoover Universal, Inc., Greenfield, Ohio.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, IWS 83-13, 1986 Apr; :1-71
Past and present chemical exposures, particularly to toluene- diisocyanate (TDI), were examined at Hoover Universal, Inc. (SIC- 3717), Greenfield, Ohio, a molded foam production facility, for use in an epidemiologic mortality study. Past exposures were determined from available environmental monitoring records. Personal breathing zone air samples were tested for chemical exposures. Exposure records showed polyvinyl-chloride (9002862) resin had been used in this facility; no measurements were available. Air concentrations of monomeric 2,4-TDI (584849) ranged from less than 2 to 38 micrograms per cubic meter (microg/m3). Concentrations of 2,6-TDI (91087) ranged from less than 2 to 54microg/m3. Exposures to 2,6- TDI were generally higher than exposures to the 2,4 isomer for all job categories and in all production lines. Polymeric isocyanate groups were present at concentrations at least eight times greater than TDI monomer. In tests with Salmonella typhimurium strain TA98, the particulate phase of factory air was 20 to 96 times more mutagenic than outside air. Aliphatic amines were detected: triethylene-diamine (280579) in concentrations from 40 to 615microg/m3 and bis-(2-dimethylamino-ethyl)-ether (3033623) in concentrations from undetectable to 1374microg/m3. Methylene- chloride (75092) was detected in amounts ranging from less than 1 to 454 milligrams/m3. The author concludes that this facility should be included in the NIOSH cohort mortality study of TDI exposed workers.
NIOSH-Author; NIOSH-Survey; Field-Study; Region-5; Isocyanates; Chlorinated-methylenes; Ethers; Chlorinated-vinyls; Mutagenicity; Aliphatic-compounds
9002-86-2; 584-84-9; 91-08-7; 280-57-9; 3033-62-3; 75-09-2
Field Studies; Industry Wide
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: July 3, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division