Full Breakdown
New Documents Reveal City Knowledge of Toxic Air After 9/11 as Survivors Continue to Face Illness
By Drooid · · How we work
The Ongoing Health Crisis 25 Years After the Attacks
A quarter-century after the towers collapsed on September 11, 2001, more than 150,000 survivors and first-responders remain enrolled in the World Trade Center (WTC) Health Program. The program has recorded over 139,000 distinct health conditions, with cancers accounting for roughly 71 % of diagnoses in the past year. Chronic respiratory problems, gastro-esophageal reflux disease and PTSD also persist.
Background: Dust, Exposure, and the Zadroga Act
In the weeks after the collapse, a dust plume containing concrete, asbestos, glass and chemicals settled over lower Manhattan. The James Zadroga 9/11 Health and Compensation Act of 2010 funds treatment for the documented conditions.
Data on Illnesses and Mortality
- 139,000+ health conditions documented as of June 30, 2026.
- 150,000+ individuals enrolled in the WTC Health Program.
- 57,000 cancer patients receiving care, split almost evenly between responders and survivors.
- Non-melanoma skin cancer is the most common, followed by prostate and breast cancers; rarer forms such as brain cancer, leukemia and testicular cancer also appear.
- Approximately 6,000 deaths have been attributed to cancer and 10,000 to other 9/11-related illnesses.
Personal Accounts from Ground Zero Workers
Matthew McCauley, a former police officer who helped sift rubble, now works as a lawyer for 9/11 Health Watch. He describes a “persistent cough and sinus issues” that feel “like you’ve smoked” despite never having smoked. McCauley has lost several close friends to 9/11-related illnesses, including volunteer firefighter Brian Payne, who died of cancer in 2022.
Official Statements & Responses
Mayor Zohran Mamdani announced the release of more than 170,000 pages of municipal records on September 8, 2026, stating that the city’s past assurances that the air was safe were misleading and that the new portal will aid research and compensation efforts. Former EPA Administrator Christine Todd Whitman defended the agency’s early statements, saying they were based on the scientific data available at the time and noting the EPA’s limited jurisdiction over indoor air at the site.
On-the-Ground Reports
Local residents reported dust infiltrating homes and workplaces for weeks after the attacks. A former NYU Grossman School of Medicine clinical director, Denise Harrison, notes that new patients continue to present with cancers and latent conditions such as interstitial lung disease.
Conflicting Reports & Gaps
The CDC’s estimate of 400,000 exposed individuals differs from the “more than 145,000” currently receiving treatment cited by other sources. While the WTC Health Program records 71 % of recent conditions as cancer, some advocacy groups argue the true burden may be higher because many affected residents remain unenrolled.
Verbatim Quotes
- “People got sick because the leaders they trusted lied and told them they were safe to breathe in toxic air,” — Zohran Mamdani, New York City mayor
- “The World Trade Center was basically made of every single carcinogen known to man, as most buildings are, and then [it] was micronized in seconds and became airborne,” — Matthew McCauley, 9/11 Health Watch
What’s Next
The searchable archive is expected to inform future epidemiological studies and may prompt refinements to the Zadroga Act. City officials have pledged to use the documents to improve outreach to unregistered survivors and to support litigation seeking broader coverage for illnesses not yet recognized by the WTC Health Program.
