Swelling, itching, or irritated eyes, nose, or throat; congestion

Notes: May be allergic, if only a small number are affected (check Biological Sources first); more likely to be irritation response if a large number are affected (check Housekeeping, Outdoor, or Building Sources first). Symptoms may dissipate when away from building. Check for strong pollutant sources in the area/room (e.g., paint, solvent, adhesive, aerosol products, printing, cooking). Check for any new pollutant sources in use.

Possible Contaminants:

• Biological
  • Is there an odor of mold or mildew in or near the complaint area?
  • Is there mold or any animals present?
  • Is there standing water near the complaint area, or instide the air handler or ductwork?
  • Is condensation often present on windows or cold surfaces?
  • Is indoor relative humidity above 60%?
  • Excess moisture can cause mold, fungi, dust mites, and some bacteria to flourish.
• Housekeeping
  • Do complaints occur during or just after housekeeping activities?
  • Do housekeeping activities take place near the complainants?
  • Are any new products in use?
  • Are housekeeping products used according to directions?
  • Are products stored in sealed containers or in vented rooms?
• Outdoor
  • Are sources of odor or pollutants (e.g., vehicles, stored chemicals, trash) located near outdoor air intakes?
  • Are there sources nearby or upwind:
    • combustion byproducts from traffic, loading docks, or flue exhausts?
    • industrial, agricultural, or lawn care activity?
  • Are pollen levels high?
• Building
  • Has there been recent painting, roofing, or other remodeling or construction?
  • Were pericides applied recently near the complaint area?
  • Has new furniture, flooring, or equipment been installed?
  • Are solvents or other chemicals stored in poorly sealed containers?
  • Is it overly dusty?