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NYC Officials Release 40,000 Additional Unseen Post-9/11 Documents

The archive now totals 210,000 pages and includes internal emails on air quality, building safety and legal concerns after the attacks.

  • On Wednesday, Mayor Zohran Mamdani's administration released 40,000 additional records related to the Sept. 11 attacks, bringing the cumulative total to 210,000 pages available through the city's 9/11 portal.
  • The release follows a settlement with 9/11 Health Watch, an advocacy group that sued the city for years to access records on air quality, health risks, and government decisions following the 25-year-old attacks.
  • Records reveal internal discussions about hazardous dust, made public after the administration waived attorney-client privilege. General Counsel Wilfredo Lopez noted, "We've been telling people everything is okay," while discussing testing or cleanup.
  • Advocates praised the release, with Executive Director Ben Chevat stating the documents show "a disturbing record" that government agencies failed to change course even after realizing the extent of hazards.
  • Additional records are expected in the coming months as part of the ongoing settlement, furthering the promise of transparency for families and first responders affected by the attacks.
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22 Articles

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The documents, which total more than 200,000 pages, are available for public consultation. One of them alerted, in private, to the serious risks of exposure to toxic substances in the Ground Zero, while the municipal and federal authorities ensure that the air in downtown Manhattan was safe.

·Lisboa, Portugal
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Hola NewsHola News
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New York, Oct 21 (EFE).- The mayor of New York, Zohran Mamdani, announced on Wednesday the publication of 40,000 documents related to the attacks of September 11, 2001, which add to the thousands of records that his Administration released last September on air quality in Zone Zero. [...] The post New York publishes new documents on 9/11 and toxic hazards in Zone Zero was first published in HolaNews.

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This document, attributed to Robert Harding, deputy mayor in 2001, warned privately of the serious risks of exposure to toxic substances in Zone Zero.

·Guayaquil, Ecuador
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NBC New York broke the news in New York, United States on Wednesday, October 21, 2026.
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