Swelling, Itching, or Irritated Eyes, Nose or Throat; Congestion
May be an allergic reaction, 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 Sources," "Outdoor Sources," or "Building Sources" first). Symptoms may disappear when occupant is away from the building. Check for strong pollutant sources in the area/room (e.g., paint, solvent, adhesive, aerosol products, cleaners, petroleum products, printing, cooking). Check for any new pollutant sources in use. Also see information for the symptoms: "cough; congestion; chest tightness; shortness of breath; fever, chills and/or fatigue."
- Are sources of odors or pollutants (e.g., vehicle exhaust, stored chemicals or trash bins) located near outdoor air intakes, windows or doors?
- Are there sources nearby or upwind:
- Exhaust from traffic, loading docks or flues?
- Industrial, agricultural or lawn care activity?
- Construction activity?
- Are pollen levels high?