Microfilm equipment, window clean- ers, acid drain cleaners, combustion products, tobacco smoke, blueprint equipment Combustion products from gas fur- naces and appliances tobacco smoke, welding, and gas- and diesel- engine exhausts Copy machines, electrostatic air cleaners, electrical arcing, smog Ground beneath buildings, building materials, and groundwater Fibrous glass and mineral wool Cigars, cigarettes, pipe tobacco Paints, cleaning compounds, moth- balls, glues, copy machines, “spirit” duplicators, signature machines, sili- cone caulking materials, insecticides, herbicides, combustion products, asphalt, gasoline vapors, tobacco smoke, dried out floor drains, cos- metics, and other personal products 266 Miscellaneous inorganic gases (includes ammonia, hydrogen sulfide, sulfur dioxide) Nitrogen oxide Ozone Radon Synthetic fibers Tobacco smoke Volatile organic compounds (includes trichloroethylene, benzene, toluene, methyl ethyl ketone, alcohols, meth- acrylates, acrolein, polycyclic aro- matic hydrocarbons, and pesticides) Eye, respiratory tract, mucous mem- brane irritation aggravation of chronic respiratory diseases pul- monary edema if exposure dose is high enough (occurs several hours after exposure) Eye, respiratory, and mucous mem- brane irritation Eye, respiratory, mucous membrane irritation aggravation of chronic res- piratory diseases No acute health effects are known but chronic exposure may lead to increased risk of lung cancer from alpha radiation (radon) Irritation of the eyes, skin, and lungs dermatitis Tobacco smoke can irritate the respira- tory system and, in allergic or asth- matic persons, often results in eye and nasal irritation, coughing, wheezing, sneezing, headache, and related sinus problems. People who wear contact lenses often complain of burning, itch- ing, and tearing eyes when exposed to cigarette smoke. Tobacco smoke is a major contributor to IAQ problems. Tobacco smoke contains several hun- dred toxic substances including car- bon monoxide, nitrogen dioxide, hydrogen sulfide, formaldehyde, ammonia, benzene, benzo(a)pyrene, tars, and nicotine. Most indoor air par- ticulates are due to tobacco smoke and are in the respirable range. (See guideline Smoking Cessation, page 295, for additional information.) Nausea dizziness eye, respiratory tract, and mucous membrane irrita- tion headache fatigue Source: OSHA Technical Manual (TED 1–0.15A), Indoor Air Quality Investigation, January 20, 1999. Contaminant Source Acute Health Effects