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Health-hazard evaluation report HETA 86-421-1956, Cincinnati Public Schools, Cincinnati, Ohio

Technical Report ·
OSTI ID:5165195
An evaluation was made of the working conditions in rooms 430, 431, and adjacent areas at the Hughes Vocational School. The school is a six story brick building, about 125,000 square feet, attached to the Hughes High School. Each floor has its own heating, ventilating, and air conditioning system. Air samples for ethylene oxide (EtO), formaldehyde, hydrocarbons, and bioaerosols were below all relevant criteria. Temperature and relative humidity levels were within accepted comfort ranges. Levels of carbon dioxide at 500 to 1000 parts per million (ppm) inside, and 300 ppm outside, indicated that inadequate amounts of fresh air were being delivered to classrooms 431 and 432. The symptoms of respiratory problems were reported in eight of nine persons in these classrooms and included eye irritation, irritation or sores in the mouth, unusual odors, headaches and fatigue. These symptoms have been associated with a lack of enough fresh air, rather than being attributed to a specific toxic agent. This report concludes that inadequate ventilation was the most likely cause for the symptoms and recommends specific improvements in the ventilation system, including correction of deficiencies, and evaluation of the system by a ventilation contractor.
Research Organization:
National Inst. for Occupational Safety and Health, Cincinnati, OH (USA)
OSTI ID:
5165195
Report Number(s):
PB-90-103557/XAB; HETA--86-421-1956
Country of Publication:
United States
Language:
English