Health Hazard Evaluations (HHEs)

(1973) Mobil Oil Corporation, Augusta, Kansas. (Click to open report)
Evaluation of hazards from exposures to asbestos (1332214) dust and hot environments relevant to an oil refinery's requirement for insulators' wearing of special clothing. Survey of insulators does not indicate any symptoms attributable to overexposure to asbestos, although wearing of paper coveralls over personal clothes contributes somewhat to the problem of heat exposure. Asbestos is not found toxic at the concentrations used and found in the insulators' working operation. The toxic effects o... (Click to show more) Evaluation of hazards from exposures to asbestos (1332214) dust and hot environments relevant to an oil refinery's requirement for insulators' wearing of special clothing. Survey of insulators does not indicate any symptoms attributable to overexposure to asbestos, although wearing of paper coveralls over personal clothes contributes somewhat to the problem of heat exposure. Asbestos is not found toxic at the concentrations used and found in the insulators' working operation. The toxic effects of prolonged inhalation of asbestos include pulmonary fibrosis and asbestosis, respiratory insufficiency, and cardiac failure. Physical agents include: hot environments which create heat fatigue characterized by decreased ability to concentrate, tiredness, and irritability, heat collapse, exhaustion, or syncope. Recommendations include adherence to the Federal rules and NIOSH standards relating to exposures to hot environments, and provision of cloth coveralls instead of paper coveralls, and laundering services. (Click to show less)
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(1973) N. L. Industries, Inc. Titanium Pigment Division St. Louis, Missouri. (Click to open report)
Environmental survey and medical evaluation of workers in a plant producing titanium dioxide pigment from ilmenite ore, involving various ore dressing techniques, including digestion, bleaching, washing, calcining, and milling. Monoisopropanolamine or MIPA and triethanolamine or TEA had been found to cause dermatitis in use prior to the inspection; titanium dioxide dust levels are found to be below standard limits. No pulmonary or noncutaneous health problems are identified. Noise levels are fou... (Click to show more) Environmental survey and medical evaluation of workers in a plant producing titanium dioxide pigment from ilmenite ore, involving various ore dressing techniques, including digestion, bleaching, washing, calcining, and milling. Monoisopropanolamine or MIPA and triethanolamine or TEA had been found to cause dermatitis in use prior to the inspection; titanium dioxide dust levels are found to be below standard limits. No pulmonary or noncutaneous health problems are identified. Noise levels are found to exceed standard limits. Recommendations are made for use of protective clothing if use of MIPA or TEA is reintroduced, complete implementation of a hearing conservation program, preventive maintenance program for filters, use of vacuum equipment for precluding airborne dust, and use of respirators for inert dusts and nuisance dusts. (Click to show less)
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(1973) PPG Industries, Inc., Clarksburg, West Virginia. (Click to open report)
Air sampling and medical evaluation performed at a glass cutting and packaging operation reveals that salicylic dust, a component of Polytek glass used in the process, is toxic at the concentration used or found, causing acute irritation of the eyes, nose and throat of the workers exposed. Air concentration levels of 0.08 mg per cubic meter of salicylic-acid (69727) does not cause significant blood levels of the compound, but it does induce symptoms. Limited evaluation of the new Polytek dispens... (Click to show more) Air sampling and medical evaluation performed at a glass cutting and packaging operation reveals that salicylic dust, a component of Polytek glass used in the process, is toxic at the concentration used or found, causing acute irritation of the eyes, nose and throat of the workers exposed. Air concentration levels of 0.08 mg per cubic meter of salicylic-acid (69727) does not cause significant blood levels of the compound, but it does induce symptoms. Limited evaluation of the new Polytek dispenser operation has shown a significant reduction in symptomatology. (Click to show less)
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(1973) Reynolds Metals Company, Bauxite, Arkansas. (Click to open report)
Air sampling and medical investigations at an industry manufacturing alumina (1344281) from bauxite indicate that alumina dust and sinter dust are toxic at the concentrations found during the evaluation, while crystalline silica and fluorides in the cryolite area are not toxic in the concentrations measured. Workers in the alumina bagging area noted occasional burning of the nose and had a history of skin irritation, although dermatitis was well controlled by the use of protective creams. Air sampling and medical investigations at an industry manufacturing alumina (1344281) from bauxite indicate that alumina dust and sinter dust are toxic at the concentrations found during the evaluation, while crystalline silica and fluorides in the cryolite area are not toxic in the concentrations measured. Workers in the alumina bagging area noted occasional burning of the nose and had a history of skin irritation, although dermatitis was well controlled by the use of protective creams. (Click to show less)
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(1973) Steel Tool and Engineering Company, Taylor, Michigan. (Click to open report)
Evaluation of hazards from exposure to dusts from grinding and sandblasting operations, heat, degreasing operations, solvent test operations, and "Acryloid" glue operations, in the manufacture of high temperature alloy components (SIC-349) for the gas turbine industry. Evaluation also covers exposure to dusts of chromium (7440473), cobalt (7440484), molybdenum (7439987), nickel (7440020), and iron (7439896). Solvents involved in the operations are ethylene-dichloride (107062), acetone, 1,1,1-tri... (Click to show more) Evaluation of hazards from exposure to dusts from grinding and sandblasting operations, heat, degreasing operations, solvent test operations, and "Acryloid" glue operations, in the manufacture of high temperature alloy components (SIC-349) for the gas turbine industry. Evaluation also covers exposure to dusts of chromium (7440473), cobalt (7440484), molybdenum (7439987), nickel (7440020), and iron (7439896). Solvents involved in the operations are ethylene-dichloride (107062), acetone, 1,1,1-trichloroethane (25323891) and trichloroethylene (79016). Data are given for the evaluation design and evaluation methods, 8-hour time weighted concentration, and pathological effects of various types of dusts. Toxic effects of the metals and chemicals include cancer of the lung, nose, and sinus, pneumonitis, mucosal irritation, ciderosis, irritation of the eyes and nose, narcosis, headaches, dizziness, vertigo, tremors, nausea, vomiting, insomnia, fatigue, liver damage and lightheadedness. Environmental survey results are given for grinding area, acryloid area, degreasing area, and furnace area with recommendations for each area based on medical survey results. (Click to show less)
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