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Mamdani announces release of dozens of 9/11 air quality documents

New York City Mayor Zohran Mamdani announced the release of more than 170,000 pages of previously undisclosed records about air quality following the September 11, 2001, attacks, showing city officials at the time knew conditions around Ground Zero were unsafe to breathe despite repeated assurances to the public.

1:35 • Source: CNN
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