American Lung Association
The American Lung Association provides an indepth look at Indoor Air Quality and the health concerns surrounding the issues. This site also provides links to additional studies on indoor air quality.
Environmental Protection Agency
The Environmental Protection Agency provides an excellent overview of Indoor Air Quality issues.
National Institute for Occupational Safety and Health
NIOSH presents fact sheets and other information about indoor air quality.
U.S. Department of Labor, Occupational Safety and Health Administration
OSHA covers air quality standards in the workplace.
U.S. Consumer Product Safety Commission
The U.S. Consumer Product Safety Commission features information about Indoor Air Quality, including a list of online publications that can be downloaded in HTML and PDF format.