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Industrial Hygiene Walk-Through Report, Diamond Shamrock Chemical Company, Belle, West Virginia, Report No. IWS-60-11.
Egan-E; Boeniger-M; Meinhardt-T
NIOSH :15 pages
A walk through survey was conducted at the Diamond Shamrock Chemical Company, Belle, West Virginia, where chloroform (67663), methylene- chloride (75092), carbon-tetrachloride (56235) and muriatic-acid (7647010) were produced. Raw materials and possible contaminants encountered during the production process included methanol (67561), hydrochloric-acid (7647010) and catalysts. Personal air samples were taken on a rotating basis routinely for all production and laboratory workers. Periodic physical examinations were required for employees and protective glasses, shoes, and respirators were supplied by the company. The hazards at this facility included possible chemical burns, damage to the nervous system or liver from methanol exposure, and a suspected cancer risk from chloroform (67663) and carbon-tetrachloride exposures. Chloromethane (74873) was detected in quantities ranging from 0.04 to 34.7 parts per million (ppm) with one reading reaching 101.7ppm in the maintenance shop area. Readings for dichloromethane (75092) ranged from 0.83 to 30.0ppm with one reading reaching 43.3ppm for a reactor operator. Trichloromethane (67663) readings ranged from 1.0 to 19.9ppm with one reading reaching 44.3ppm for a still operator. Readings for carbon-tetrachloride ranged from less than 0.03 to 1.9ppm with one reading reaching 8.9ppm for a reactor operator.
NIOSH-Author; NIOSH-Survey; Field-Study; Region-3; IWS-60-11; Chlorinated-hydrocarbons; Chloromethanes; Ventilation-systems; Respiratory-protective-equipment; Solvents; Chemical-manufacturing-industry; Chemical-industry-workers;
67-66-3; 75-09-2; 56-23-5; 7647-01-0; 67-56-1; 7647-01-0; 67-66-3; 74-87-3; 75-09-2; 67-66-3;
NTIS Accession No.
Division of Surveillance, Hazard Evaluations and Field Studies, NIOSH, Cincinnati, Ohio, Report No. IWS-60-11, 15 pages
VA; WV; OH;
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division