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NYC releases 9/11 records showing officials misled New Yorkers about air quality around Ground Zero

The release follows a lawsuit settlement and includes records showing asbestos and other contaminants were found in lower Manhattan after the attacks.

  • Mayor Zohran Mamdani's administration will release more than 170,000 pages of records on Tuesday, revealing city officials possessed evidence of dangerous air conditions in Lower Manhattan despite public assurances following the World Trade Center collapse.
  • The documents indicate officials were aware of troubling environmental test results, including spiking benzene and asbestos concentrations in November 2001, even as public statements offered reassurance about air safety near the World Trade Center.
  • Rep. Jerrold Nadler said he met with former Mayors Rudy Giuliani and Michael Bloomberg to raise concerns, but his warnings went unheeded. "They knew about the air quality and they essentially did nothing about it," Nadler said.
  • Thousands of New Yorkers have developed cancers and respiratory illnesses linked to contamination exposure. Former New York Gov. George Pataki revealed he was diagnosed with restrictive airway disease attributed to his exposure at the site.
  • As the 25th anniversary approaches, the release adds to long-running questions about whether officials adequately warned workers and residents of hazards while prioritizing the reopening of Wall Street.
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New York City officials knew after the September 11, 2001, attacks that the air quality at the site of the World Trade Center was toxic and dangerous to human health, yet they assured the public otherwise, New York City Mayor Zohran Mamdani said Tuesday, citing more than 170,000 documents on post-attack air quality that the city has now released for the first time.

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The Columbian broke the news in Vancouver, United States on Monday, September 7, 2026.
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