World Trade Center Response

The terrorist attacks of September 11, 2001 exposed rescue and recovery workers to unprecedented levels of risk for job-related injury, illness, and death. The National Institute for Occupational Safety and Health (NIOSH) responded swiftly to address workers' needs in the aftermath of the attacks. NIOSH quickly sent to Ground Zero dozens of staff who applied their technical expertise to help meet immediate worker protection needs.

Currently, NIOSH funds programs to provide medical screening, monitoring, and treatment for responders who served at the WTC site. Links to information about the NIOSH response, and World Trade Center health resources, can be found below.

Responder Health Programs
Were you a responder or volunteer at the World Trade Center site in New York City and would you like more information about the WTC Responder Health Program?

Non-Responder Health Program
Were you a student, resident or worker who lived, went to school, or worked in the area around the World Trade Center site in New York City?

Science Summaries
Would you like more information about the scientific studies that have looked at the effects of the attacks on the World Trade Center?

Frequently Asked Questions
Would you like to see answers to Frequently Asked Questions about the World Trade Center program?

Other Resources
Are you interested in other sources of information related to the support of those affected by the events of September 11, 2001?

Numbers of Participants in the WTC Health Programs
The number of patients in treatment are those responders who have been referred from a monitoring exam for follow-up care and received any treatment between July 1, 2008 and June 30, 2009. Other information can be found on this page about the number of participants in the World Trade Center Health Program.

Responder Health Programs