An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Ambient Monitoring Technology Information Center (AMTIC)

Ambient Monitoring Technology Information Center (AMTIC)

The Ambient Monitoring Technology Information Center (AMTIC) provides information on monitoring programs and  methods, quality assurance and control procedures, and federal regulations. This website is primarily intended for staff responsible for collecting ambient air monitoring data. Learn more.

Ambient Air Monitoring Assessments

Reports and dashboards of data.

Additional Monitoring Information

Learn more from EPA, states, and other organizations.