25 years after 9/11, Mamdani opens 170,000 pages of records on Ground Zero toxic air

New York City Mayor Zohran Mamdani has released more than 170,000 pages of previously withheld records on the health and air-quality impact of the September 11 attacks, ending a years-long legal battle over access to the documents.

New Delhi: Twenty-five years after the September 11, 2001, attacks in the US, New York City has opened a huge trove of records detailing what officials knew about the health and environmental dangers around Ground Zero in the months that followed.

Mayor Zohran Mamdani’s administration on Tuesday released more than 170,000 pages of city records and launched a public portal containing documents on air quality, contamination, health concerns and the city’s response to the attacks. The release also settles two lawsuits brought by the advocacy group 9/11 Health Watch seeking access to the records.

The documents include the so-called Harding Memo, records from 68 boxes that were discovered only in 2025, and files related to World Trade Center 7. The city said the portal will be updated over the next 12 months as additional........

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