Toxic air quality was being recorded in Manhattan soon after the 9/11 attacks, even as officials played down the health risks to the public, according to a trove of newly released files. More.

New York City Mayor Zohran Mamdani announced the release of more than 170,000 pages of records detailing the government’s response to the Sept. 11 terrorist attacks and the aftermath, including documents related to air quality and health concerns. More.

As the 25th anniversary of the Sept. 11 terrorist attacks in New York City approaches, Mayor Zohran Mamdani has launched a portal giving the public access to about 170,000 pages of documents concerning air quality, health hazards, and the government’s response following 9/11. More.

Hundreds of first responders have told me they remember exactly how they felt during the World Trade Center attacks, even 25 years on. They tell me that they remember not being able to think, see or smell anything. More.

Mayor Zohran Kwame Mamdani: Good afternoon, everyone, and welcome to City Hall. I want to acknowledge leaders throughout our administration that are standing here alongside me. More.

Today, ahead of the 25th Anniversary of the September 11th terrorist attacks, Mayor Zohran Kwame Mamdani will sign two Executive Orders to honor the victims, first responders, survivors, City workers and families whose lives were forever changed by the tragedy while strengthening City government’s ability to protect New Yorkers and maintain essential services during emergencies. More.

The number of 9/11 cancer victims has skyrocketed 1,680% over the past decade — fueled by rare variations of the disease, according to new statistics released as the grim 25th anniversary of the attacks nears. More.

A 9/11 volunteer who helped clear debris at Ground Zero is raising awareness about long-term health struggles as the nation prepares to mark 25 years since the attacks. More.