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Indoor Air Quality (IAQ)

Multiple reports from the Building Assessment Survey and Evaluation Study

These documents summarize airborne culturable bacteria statistics from the US Environmental Protection Agency Building Assessment Survey and Evaluation (BASE) studies.

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  • Concentrations of airborne culturable bacteria (PDF)(11 pp, 171 K)
    This paper presents summary statistics of airborne culturable bacteria from the US Environmental Protection Agency Building Assessment Survey and Evaluation (BASE) study.
  • Airborne Culturable Fungi Comparison (PDF)(1 pg, 25 K)
    Airborne Culturable Fungi: Comparison by Winter Temperature (Hot, Moderate or Cool Winters). Samples collected in the Building Assessment Survey and Evaluation (BASE) Study.
  • Airborne biological contaminants mean concentrations (PDF)(1 pg, 12 K)
    Mean Concentrations of Total Airborne Culturable Bacteria (Sum of Mesophilic and Thermophilic Bacteria) (CFU/m3), by Location Indoors/Outdoors) and Season (Summer/Winter). Samples collected in the Building Assessment Survey and Evaluation (BASE) Study.
  • Mean of Total and Thermophilic Bacteria (PDF)(1 pg, 15 K)
    Mean Concentrations of Airborne Culturable Bacteria (CFU/m3) Total Bacteria and Thermophilic Bacteria. Samples collected in the Building Assessment Survey and Evaluation (BASE) Study.
  • Comparison of Sample Percentages (PDF)(1 pg, 18 K)
    Comparison of the Percentages of Samples in which Fungal Groups were Identified by Culture (Andersen Samples) and Direct Microscopic Examination (Burkard Samples) in the Building Assessment Survey and Evaluation (BASE) Study.
  • Comparison by Sampling Location (PDF)(1 pg, 18 K)
    Airborne Culturable Fungi: Comparison by Sampling Location (Outdoors vs. Indoors) of Samples in Which the Most-Frequently Identified Fungal Groups Were Found in the Building Assessment Survey and Evaluation (BASE) Study.
  • Mean Concentrations by by Climate Region, Location and Season (PDF)(1 pg, 12 K)
    Mean Concentrations of Total Airborne Culturable Bacteria (CFU/m3) by Climate Region, Sampling Location, and Season. Samples collected in the Building Assessment Survey and Evaluation (BASE) Study.
  • Comparison by Season - Indoors and Outdoors (PDF)(1 pg, 17 K)
    Airborne Culturable Fungi: Comparison by Season (Summer vs. Winter) of Samples Collected Outdoors (left-hand pair) and Indoors (right-hand pair) in the Building Assessment Survey and Evaluation (BASE) Study.
  • Comparison by Summer Humidity (PDF)(1 pg, 17 K)
    Airborne Culturable Fungi: Comparison by Summer Humidity (Damp vs. Dry Summers) of Samples Collected Outdoors (left-hand pair) and Indoors (right-hand pair) in the Building Assessment Survey and Evaluation (BASE) Study.
  • Comparison by Winter Temperature (PDF)(1 pg, 25 K)
    Airborne Culturable Fungi: Comparison by Winter Temperature (Hot, Moderate, or Cool Winters). Samples collected in in the Building Assessment Survey and Evaluation (BASE) Study.