Mayor Zohran Mamdani released roughly 170,000 pages of city records about post‑9/11 air quality and health on a new public portal and framed the move as part of a settlement ending lawsuits over the documents.
The Mamdani administration said the initial release includes air‑quality reports, the so‑called Harding Memo and the “68 boxes” of records recovered in 2025, and that Law Department review will continue so more files appear on the portal over the next 12 months. The announcement said the city settled two lawsuits and has budgeted to maintain the portal.

Mayor Zohran Mamdani used a September 8 press conference to tie the release to transparency and to urge survivors and first responders to use federal health programs; he said the records show officials had information about toxic air after the attacks and that New Yorkers were misled. Reporting by NPR noted the documents show officials collected data soon after the attacks but fought in court for years to keep it private.
The new portal — published by the city as nyc.gov/sept11docs and described in the mayor’s office statement — will be updated as redactions and reviews are completed. The mayor’s announcement also said the FY27 budget includes $34 million to create and maintain the records portal and appoint staff to help people access federal programs under the Zadroga Act.

The release came three days before the 25th anniversary commemoration at Ground Zero and prompted political backlash: CNN reported Republican figures and some family members urged Mamdani not to attend the memorial, while supporters and survivors welcomed the disclosure as long‑sought transparency.
Mayor Zohran Mamdani has also faced criticism over his attendance at memorial events in recent days, a separate controversy that has overlapped with the document release in news coverage and public debate. Coverage noted voices on both sides — some family members objected to his participation on political grounds, while others said calls to bar him were unfair and rooted in bias.
Why this matters: the newly released records and the portal could help survivors and responders document their presence in the Exposure Zone and support claims to federal programs, according to the mayor’s office and reporting that cited public‑health enrollment figures tied to 9/11 illnesses.
For readers who want more reporting and context on the release and its political fallout, see city coverage of the documents and recent photos from the commemorations.
Related coverage: Ground Zero: NYC releases more than 170,000 pages on 9/11 air quality and Mamdani and AOC seen smiling at 9/11 remembrance in New York.
Sources
- NYC Mayor’s Office — press release announcing the release of approximately 170,000 pages, the portal URL, the settlement and FY27 budget allocation.
- NPR — reporting that documents show officials knew about dangerous post‑9/11 air quality and that the city fought in court to keep records private.
- CNN — coverage of the political backlash ahead of the 25th‑anniversary ceremony and differing reactions from families and politicians.











