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Chemical Contaminants

  • nPrinters and copiers emit VOCs, including formaldehyde, as well as particulates, nitrogen oxides, and ozone (older equipment)

    • dominant VOCs: ethylbenzene, xylenes, styrene

  • Occupants themselves

    • VOCs in exhaled breath: an “important indoor source”

      • typically: isoprene, acetone, ethanol, methanol, other alcohols

        • See: J. Air & Waste Manage. Assoc. 49:594-598 (May 1999)

    • dry-cleaning solvents on clothing

    • personal care products

  • Cleaning and maintenance products sometimes dominate

  • Furnishings, finishes

    • carpet, sheet goods, paints, varnish/shellac, manufactured wood products, GWB joint compound, adhesives, caulks

  • Art and science classrooms, shops, copier rooms

    • local control, pressure relationships are critical

  • Carbon monoxide and other criteria pollutants, radon, pesticides

     

 

 

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