Mamdani Releases 170,000 Pages of 9/11 Records, Says New Yorkers Were ‘Lied’ to About Toxic Air
New York City Mayor Zohran Mamdani has opened a massive collection of previously unreleased city records concerning air quality and health hazards following the September 11, 2001, terrorist attacks, accusing government leaders at the time of misleading New Yorkers about the dangers of breathing the air around Ground Zero.
The Mamdani administration on Tuesday made approximately 170,000 pages of records available through a new public portal examining the city’s response to the attacks and their aftermath. The city’s fiscal 2027 budget includes $34.2 million for the creation and maintenance of the portal, which officials say will eventually contain additional records from numerous city agencies.
“Close to 25 years later, more people have died from 9/11-related illnesses than were killed on the day itself,” Mamdani said during a press conference announcing the release.
Mamdani appeared alongside relatives of 9/11 victims, first responders and advocates. Rep. Jerry Nadler and comedian Jon Stewart, who has spent years advocating for 9/11 first responders and survivors, also participated in the event.
“It would be one thing if government had stood alongside survivors and provided them with everything they needed at every step of the way,” Mamdani added, noting that “could not be further” from what occurred.
“People got sick because the leaders they trusted lied and told them they were safe to breathe in toxic air,” the mayor continued.
The newly released material includes records dealing with health concerns, environmental conditions and the city’s actions following the destruction of the World Trade Center. Among the documents are the so-called Harding Memo and the “68 boxes” of records that officials say were not located until 2025 despite repeated Freedom of Information Law requests.
The release also brings an end to two lawsuits filed against the city by 9/11 Health Watch, which had fought for access to records concerning what city officials knew about environmental and health dangers following the attacks.
Ben Chevat, executive director of 9/11 Health Watch, thanked Mamdani “for being the Mayor, after 25 years, who finally begins to answer the question, ‘What did the City know about the dangers from the toxic cloud at Ground Zero and when did it know it?’”
Mamdani is the fifth mayor to lead New York City since the attacks. Rudy Giuliani was mayor on September 11, 2001, and was succeeded by Michael Bloomberg, Bill de Blasio, Eric Adams and Mamdani.
The terrorist attacks killed 2,977 victims at the World Trade Center, the Pentagon and aboard United Airlines Flight 93 in Pennsylvania. In the years since, however, the health consequences of exposure to the toxic dust and debris have continued to claim lives and cause serious illnesses.
More than 400,000 people were exposed to contaminants resulting from the destruction of the World Trade Center, according to the 9/11 Memorial & Museum. Its figures show approximately 140,000 people enrolled in the World Trade Center Health Program as of March 2024, with about 49,000 first responders and survivors diagnosed with cancers certified by the program as connected to their World Trade Center exposure.
The health consequences remain particularly pronounced among first responders. A report released this month by the city and FDNY found that more than 10,000 FDNY members have been certified as suffering from a physical health condition related to 9/11.
The World Trade Center Health Program was established under the James Zadroga 9/11 Health and Compensation Act, signed into law by President Barack Obama in 2011. The program provides medical monitoring and treatment for eligible responders and survivors suffering from conditions associated with exposure to the World Trade Center disaster.
During Tuesday’s press conference, Mamdani said the documents being made public could help provide a clearer picture of what city officials knew about the environmental dangers surrounding Ground Zero and how the government responded.
Asked specifically by a reporter whether Giuliani had lied about air quality following the attacks, Mamdani declined to make that accusation directly.
“I leave it to New Yorkers to make their judgements.”
Mamdani added, “What we want to do is finally allow them the documents that they have long been demanding.”
The initial 170,000-page release is only the beginning. Mamdani said additional batches of records will be published during the coming year, potentially bringing the total number of available documents much higher and allowing survivors, first responders, families and researchers to examine records that had remained inaccessible for decades.
