Mamdani to Release Cache of 9/11 Air Quality Documents Ahead of Anniversary

As the 25th anniversary of the September 11 attacks approaches, New York City Mayor Zohran Mamdani has ordered the public disclosure of a significant collection of records concerning the city’s investigation into air quality in Lower Manhattan. Mamdani is expected to address the release during a press event on Tuesday.

The documents, funded by a $34.2 million allocation from the city’s $126-billion budget for the 2027 fiscal year, will be hosted on a new online portal. The mayor’s office stated that the database will eventually contain millions of pages, with additional records added on a rolling basis.

According to The New York Times, which reported that the first batch would be made available Tuesday, the trove includes air quality reports, contamination records, and correspondence among city officials. Some of these pages were part of a cache discovered in 68 boxes stored in a municipal office, which advocates argue had been withheld from the public for years.

Among the notable documents is the so-called Harding memo from 2001, which reportedly shows city leaders preparing for potential liability regarding claims from thousands of residents affected by toxic air. The files also contain records related to 15 John Street, near the former World Trade Center site, which detected asbestos levels exceeding acceptable limits approximately a year after the attacks. An audit submitted to the federal Environmental Protection Agency in November 2001 indicated high concentrations of benzene, a known carcinogen, in the air near the towers.

“So many of these New Yorkers are ones who made the decision to run towards Ground Zero,” Mamdani told CBS News last week. “And for that, they have suffered medically, and the city should be there for them.”

The Centers for Disease Control and Prevention has stated that exposure to these contaminants increases the risk of respiratory and digestive illnesses. The agency estimates that around 400,000 people were exposed to such factors following the attacks. Nearly 3,000 people died directly in the 9/11 strikes, but health officials believe more have since succumbed to related diseases.

The document release coincides with growing pressure on Mamdani from victim families and Republican politicians not to attend the upcoming 9/11 commemoration on Friday. In July, Giovanni Galante, a widower of a 9/11 victim, launched a petition opposing the mayor’s presence, citing concerns over Mamdani’s associations and his refusal to condemn rhetoric some view as hostile.

Former Governor George Pataki and former Mayor Rudy Giuliani have also urged Mamdani to skip the ceremony. Giuliani criticized the mayor’s faith and baselessly suggested support for extremist ideology, while Pataki referenced Mamdani’s appointment of Ramzi Kassem as chief counsel. Kassem previously served as legal counsel for Ahmed al-Darbi, who pleaded guilty to charges related to a 2002 al-Qaeda bombing plot.

Despite the backlash, Mamdani, New York’s first Muslim mayor, confirmed he will attend the Friday event. He previously signed executive orders designating September 11 as a citywide “Day of Remembrance and Service” and updating emergency preparedness protocols. Addressing the controversy, Mamdani emphasized his commitment to the victims and first responders.

“I’m proud to be the mayor of this city,” Mamdani said. “I love this city. I love this country. And what I want this week to be a focus on is on the families whose loved ones were stolen from them 25 years ago… and a focus also on the first responders who gave everything they could to this city.”