Health Hazard Evaluation Determination Report No. 74-9-271: Wheeling Pittsburgh Steel Corporation: Steubenville, Ohio
Public Domain
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1976/03/01
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English
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Description:Exposures to coal-tar-pitch (8007452), iron-oxide (1345251), carbon- monoxide (630080), silica (7631869), graphite (7782425), manganese (7439965), calcium-oxide (1305788), and dust were investigated in various work areas of the Wheeling Pittsburgh Steel Corporation (SIC- 3325) in Steubenville, Ohio on April 25, 1974. From April 29 to May 1, 1975 a follow up sampling was conducted for respirable particulates in the stockhouse and cast floor areas. The evaluation was requested by an authorized representative of an unspecified number of employees. Personal and area air samples were collected by 10 millimeter nylon and 0.5 inch steel cyclones, respectively, and these were analyzed using the x-ray diffraction technique. Total dust samples of iron-oxide and free silica were obtained using closed faced three piece cassettes with filters which were measured gravimetrically for weight gain. The 1974 free silica personal air samples contained three exposures in the blast furnace area 4 times over the OSHA standard of 100 micrograms per cubic meter and 2 exposures in the stockhouse were 21 and 28 times over the federal standards. One crane operator was exposed to a nontoxic level of iron-oxide. Area samples were negative and carbon-monoxide, sulfur- dioxide (7446095), and iron-oxide were below detectable limits. The 1975 study for free silica in area sampling was negative in the cast floor and stockhouse. Exposures of 7 of 36 cast floor workers and 1 of 17 stockhouse workers were equal to air in excess of the NIOSH recommended free silica standard of 50 micrograms per cubic meter. Over half of all the samples were in excess of this NIOSH standard for exposure to free silica. The author concludes that both factory areas may expose workers to potentially toxic concentrations of respirable free silica. The author recommends medical screening of potential employees, medical examinations every 3 years, safety training, posting exposure areas, personal respirators, hygienic practices, and air monitoring. [Description provided by NIOSH]
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Pages in Document:14 pdf pages
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Contributor:Flesch, Jerome P. ; Ruhe, Raymond L. ; Rivera, Raymond O. ; Smallwood, Anthony W.
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NIOSHTIC Number:nn:00099426
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NTIS Accession Number:PB89-166003
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Citation:Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 74-9-271, 1976 Mar ; :1-14
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Federal Fiscal Year:1976
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Peer Reviewed:False
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Main Document Checksum:urn:sha-512:894102590268dfca5bd978ba364b87f2ebc4226b4f3710d03a9f33e1352ca9d101431bbd525aaad6d822f8177d48e079d39e3b9cccb604a37bfeec0e25d9593f
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English
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