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Health hazard evaluation report: HETA-86-356-1930, Social Security District Office, Philadelphia, Pennsylvania.
Burr GA; Klein MK
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 86-356-1930, 1988 Sep; :1-26
In response to a request from the manager of the District Office of the Social Security Administration (SIC-9441), located in Philadelphia, Pennsylvania, an investigation was made of possible hazardous working conditions at that site. Employees had experienced headaches and nausea perhaps arising from cigarette smoke, kerosene (8008206), and gasoline (8006619) fumes. There were times when both kerosene and gasoline were stored at a gas station next to the office building. Interior carbon-dioxide (124389) (CO2) levels ranged from 800 to 1000 parts per million. Carbon-monoxide levels were negligible. Temperatures ranged from 72 to 77 degrees. Relative humidity ranged from 39 to 50 percent. The authors recommend that the flow rate of all of the air handling units be adjusted to design levels, that air flows from the diffusers also be rebalanced to design levels, that outside air dampers be set to provide a minimum of 910 cubic feet/minute of outside air, that blowers in both heating, ventilation, and air conditioning (HVAC) units be operated continuously, that outside air dampers be set to provide a minimum of 20 cubic feet/minute for the critical space on the system, that some method of supplying a correct amount of outside air for rooms used only periodically be devised, that operating temperatures of the ventilation equipment be corrected, that air from the smoking room not be recirculated to the building, that all return air grilles and registers be cleaned, that access to thermostats and ventilation system controls be limited to qualified personnel, that tanks at the neighboring gas station be filled during hours when the office building is vacant, that some technical adjustments be made to the equipment, and that a complaint system and safety manual be made available to the employees.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; Region-3; HETA-86-356-1930; Hazard-Confirmed; NIOSH-Technical-Assistance-Report; Office-workers; Closed-building-syndrome; Cigarette-smoking; Ventilation-systems; Author Keywords: Administration of Social, Manpower, and Income Maintenance Programs; ventilation; indoor air quality; carbon dioxide; carbon monoxide; temperature; relative humidity
8008-20-6; 8006-61-9; 124-38-9
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division