Environmental Protection Agency - Air Quality Planning and Standards
www.epa.gov/air/oaqps/

Information from the Office of Air Quality Planning and Standards that provides technical information for professionals involved with monitoring and controlling air pollution, creating governmental policies, rules, and guidance for professionals and government, and educating the public about air pollution and what can be done to control and prevent it.

Iowa Department of Natural Resources
www.iowadnr.com/

The Iowa Department of Natural Resources is the government agency that leads Iowans in caring for their natural resources. Contains information for all of Iowas Air Quality services.

Environmental Protection Agency
www.epa.gov/

The Environmental Protection Agency main page, a government agency since 1970 that leads the nation's environmental science, research, education and assessment efforts.

Environmental Protection Agency - Environmental Monitoring for Public Access and Community Tracking
www.epa.gov/EMPACT/

Contains data from the EMPACT program to help communities to bring people up-to-date on local environmental information.

Environmental Protection Agency - AirData: Access to Air Pollution Data
www.epa.gov/air/data/index.html

The AirData Web site gives access to yearly summaries of United States air pollution data, taken from EPA's air pollution databases. The data include all fifty states plus District of Columbia, Puerto Rico, and the U. S. Virgin Islands. AirData has information about where air pollution comes from (emissions) and how much pollution is in the air outside our homes and work places (monitoring).

Environmental Protection Agency - About Air Toxics, Health, and Ecological Effects
www.epa.gov/oar/toxicair/newtoxics.html

Provides information about toxic air pollutants, health effects, sources, and various other resources for air toxics.

Linn County Air Quality Division
linncleanair.org

Air Quality webpage for Air Quality Division of the Linn County Public Health Department.

Polk County Air Quality
www.polkcountyiowa.gov/airquality/

Air Quality webpage for Air Quality Division of the Des Moines-Polk County Planning and Development Department.

Environmental Protection Agency - National Ambient Air Quality Standards
www.epa.gov/air/criteria.html

Explains the National Ambient Air Quality Standards for pollutants considered harmful to public health and the environment.

Environmental Protection Agency - Real-Time Ozone & PM 2.5 Maps
www.airnow.gov/

Shows featured conditions of select pollutants across the nation. Contains links to current air quality maps, animations, forecasts, and state and local Web sites. Provides a national overview with maps showing the whole country with links to local information.

EPA - AQI (Air Quality Index)
airnow.gov/index.cfm?action=static.publications

Publicized information and packets provided by the Environmental Protection Agency.