An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Office of Inspector General

Report: Survey of Air Quality Information Related to the World Trade Center Collapse

Report #2003-P-00014September 26, 2003

What Was Found

Overall, the majority of respondents wanted more information regarding outdoor and indoor air quality, wanted this information in a more timely manner, and did not believe the information they received.

Report Materials

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.