WHAT IS INDOOR AIR QUALITY?
SICK BUILDING SYNDROME

The sick building syndrome comprises of various nonspecific symptoms that occur in the occupants of a building. This feeling of ill health increases sickness absenteeism and causes a decrease in the productivity of the workers. -NCBI
Building occupants complain of symptoms associated with acute discomfort, e.g., headache; eye, nose, or throat irritation; dry cough; dry or itchy skin; dizziness and nausea; difficulty in concentrating; fatigue; and sensitivity to odors. Most of the complainants report relief soon after leaving the building. -EPA
Primary causes of Sick Building Syndrome (SBS) are:
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Inadequate ventilation
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Indoor chemical contaminants (adhesives, carpeting, upholstery, manufactured wood products, copy machines, pesticides, and cleaning agents)
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Outdoor chemical contaminants (vehicle exhaust, building exhaust, and tobacco smoke)
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Biological contaminants (bacteria, mold, virus, and pollen)