Health Hazard Evaluations (HHEs)

(1974) Wheeling-Pittsburgh Steel Corporation, Steubenville, Ohio. (Click to open report)
Results of observational and environmental evaluation performed in the hand scarfing area of the steel mill reveal that total dust, iron-oxide (1317619), carbon-monoxide (630080), and ozone (10028156) exposures are not at concentrations hazardous to the health of workers. The evaluation was made by taking personal samples on all hand scarfers and all crane operators. Results of observational and environmental evaluation performed in the hand scarfing area of the steel mill reveal that total dust, iron-oxide (1317619), carbon-monoxide (630080), and ozone (10028156) exposures are not at concentrations hazardous to the health of workers. The evaluation was made by taking personal samples on all hand scarfers and all crane operators. (Click to show less)
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(1973) Central Main Power Company, Yarmouth, Maine. (Click to open report)
An environmental and medical evaluation of sulfur-dioxide (7446095), vanadium (7440622) containing dust, and respirable dust containing silica (7631869) at an electric power plant indicates that the gas and the dust are non-toxic at the concentrations found in the plant. Toxic effects of sulfur-dioxide include burning sensations, dryness and pain in the nose and throat accompanied by a dry or productive cough. Symptoms of vanadium poisoning are lung irritation leading to chest tightness, congest... (Click to show more) An environmental and medical evaluation of sulfur-dioxide (7446095), vanadium (7440622) containing dust, and respirable dust containing silica (7631869) at an electric power plant indicates that the gas and the dust are non-toxic at the concentrations found in the plant. Toxic effects of sulfur-dioxide include burning sensations, dryness and pain in the nose and throat accompanied by a dry or productive cough. Symptoms of vanadium poisoning are lung irritation leading to chest tightness, congestion, cough, wheezing, broncho-pneumonia and pulmonary edema. Silica can lead to silicosis. Recommendations include respiratory protection, and pre-employment and periodic screening of employees. (Click to show less)
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(1973) Cincinnati Gas and Electric, Miami Fort Station. (Click to open report)
This letter advised the Cleveland Wrecking Company, Cincinnati, Ohio, that a study of asbestos (1332214) exposure has been made, at their request, at the Cincinnati Gas and Electric Miami Fort Station. Workers were in the process of removing insulation from a boiler at the time four personal breathing zone samples were taken, extending over a period of about 0.5 hours. During the removal operation, one worker continually sprayed the boiler with water, thus minimizing the amount of dust generated... (Click to show more) This letter advised the Cleveland Wrecking Company, Cincinnati, Ohio, that a study of asbestos (1332214) exposure has been made, at their request, at the Cincinnati Gas and Electric Miami Fort Station. Workers were in the process of removing insulation from a boiler at the time four personal breathing zone samples were taken, extending over a period of about 0.5 hours. During the removal operation, one worker continually sprayed the boiler with water, thus minimizing the amount of dust generated by the other worker who was removing the insulation. Respirators were worn by these workers. Persons were engaged in this type of activity for only 4 to 8 hours per week. At no time were workers found to be exposed to levels of asbestos fiber which exceeded the Department of Labor allowable limit of 5 fibers/cubic centimeter (f/cc). No distinction was made between fibers of asbestos and glass (14808607). The concentrations for fibers of asbestos and glass together ranged from present at the site and encourages the continued use of both respirators and the wetting process when this activity is being performed. (Click to show less)
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(1973) Dunham-Bush, Inc., West Hartford, Connecticut. (Click to open report)
Environmental survey, biological sampling, and medical evaluation of workers in a pump room, and in brazing and silver (7440224) soldering, spray painting, welding, grit blasting, and polyurethane foam (9009545) filling operations in a metal fabrication plant, indicating potentially hazardous exposure to environmental contaminants, including: trichloroethylene (79016) (from vapor degreasers), methylene chloride, toluene-2,4-diisocyanate, and fumes of cadmium (7440439), zinc oxide (1314132), copp... (Click to show more) Environmental survey, biological sampling, and medical evaluation of workers in a pump room, and in brazing and silver (7440224) soldering, spray painting, welding, grit blasting, and polyurethane foam (9009545) filling operations in a metal fabrication plant, indicating potentially hazardous exposure to environmental contaminants, including: trichloroethylene (79016) (from vapor degreasers), methylene chloride, toluene-2,4-diisocyanate, and fumes of cadmium (7440439), zinc oxide (1314132), copper (7440508), ultraviolet radiation and infrared radiation, and silver metal and soluble compounds. Noise is found to be above permissible exposure levels. Symptoms include burning or itching eyes, tiredness, heart palpitations, cough, weakness, dizziness, changes in skin color, interaction with alcohol, nervousness and headache. Trichloroacetic acid (76039) and trichloroethanol (115208) metabolites are found in the urine. Recommendations include: provision and improvement of ventilation, use of respirators, noise abatement and hearing conservation, warning signs, shielding for welding, sanitation, engineering controls, personal protective equipment, first aid facilities, and trained first aid personnel. (Click to show less)
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(1973) Ferry Morse Seed Company, Mountain View, California. (Click to open report)
Environmental survey and medical investigation of workers in relation to exposure to airborne dust containing seed treating chemicals as pesticides. Exposures to thiram, captan (133062), aldrin (309002), Victoria green (569642), gamma-benzenehexachloride (58899), and beta-benzenehexachloride (319857) are determined as not excessive. Mercury (7439976) is not detected in blood samples as indicator of exposure to Panogen 15 and Cerasan M organomercury compounds; red blood cell cholinesterase levels... (Click to show more) Environmental survey and medical investigation of workers in relation to exposure to airborne dust containing seed treating chemicals as pesticides. Exposures to thiram, captan (133062), aldrin (309002), Victoria green (569642), gamma-benzenehexachloride (58899), and beta-benzenehexachloride (319857) are determined as not excessive. Mercury (7439976) is not detected in blood samples as indicator of exposure to Panogen 15 and Cerasan M organomercury compounds; red blood cell cholinesterase levels are normal, as indicator of malathion (121755) poisoning. Recommendations are made for improvement of design and maintenance of exhaust ventilation equipment, fungicide handling and seed treating operations, housekeeping, use of protective clothing and approved respirators, personal sanitation, and noise exposure reduction and noise abatement. (Click to show less)
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