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Health hazard evaluation report: HETA-92-369-2322, Hubert H. Humphrey Building, Washington, D.C.

Esswein EJ; Martinez KF; Parker MG; Lonon MK
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, HETA 92-369-2322, 1993 Jun; :1-29
In response to a request from the staff, an evaluation was undertaken by NIOSH to examine occupant exposures to bioaerosols, resulting from an uncapped sewage pipe above the National AIDS Program Office (NAPO) (SIC-9431, SIC-9199), located in the Hubert H. Humphrey Building, Washington, DC. The office had a staff of nine and was one of many federal offices within the building. Contractors had apparently removed a section of sanitary drain pipe, which resulted in an overflow of sewage into the ceiling plenum and the collapse of the ceiling. Carpeting and building furnishings were contaminated with sewage. Water damaged building materials and furnishings were present at the time of the survey. No significant differences in indoor versus outdoor air samples were noted. No bacterial cultures revealed any organisms which were associated with building related illnesses. The authors conclude that building related illness was not identified in the affected area. The condition of condensate drain pans in air handling units and the presence of drip collection pans in the return air plenum suggested the need for increased maintenance to avoid conditions favorable for microbial growth and amplification. The authors recommend that necessary repairs to the building be made, moisture source be removed from air handling plenums, and repairs be made to the heating, ventilation and air conditioning system.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-92-369-2322; Hazard-Unconfirmed; Region-3; Indoor-air-pollution; Office-workers; Work-environment; Microorganisms; Ventilation-systems; Indoor-environmental-quality; Author Keywords: Administration of Public Health Programs, General Government, Not Elsewhere Classified; bioaerosols; bacteria and fungi; HVAC systems; indoor environmental quality; building-related illness
Publication Date
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
NIOSH Division
SIC Code
9431; 9199
Source Name
National Institute for Occupational Safety and Health
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division