9/11 25th Anniversary Adds Seventh Moment of Silence for Nearly 10,000 Killed by Toxic Exposure

The 9/11 ceremony at Ground Zero will fall silent a seventh time on Friday, a first, honouring nearly 10,000 people killed by illnesses from the toxic dust, a toll that now dwarfs the 2,977 who died that morning.

The National September 11 Memorial and Museum added the tribute for the 25th anniversary, sounding a bell for the responders, cleanup workers, and lower Manhattan residents whose deaths trace back to the plume that hung over the site for months.

For a generation too young to remember the attacks, it reframes 9/11 as an open wound, not a closed chapter.

A Second Toll That Keeps Climbing

The September 11th Victim Compensation Fund, the federal programme that pays people sickened at the crash sites, has linked nearly 10,000 deaths to 9/11 illnesses over 25 years, including 5,892 responders and neighbours who died of cancer. That total is more than three times the number killed on the day.

A separate government effort, the World Trade Centre Health Program, counts close to 7,000 deaths among its members, though officials stress that figure covers all causes, not only exposure.

Bridget Gormley knows the second toll first-hand. Her father, a New York firefighter, lived through the attacks but died of bladder cancer 16 years later. 'It's not going to stop until the last person passes away that was down here,' she said.

Firefighters Pass a Grim Milestone

The Fire Department of the City of New York (FDNY) has now lost 453 members to World Trade Centre illnesses, overtaking the 343 killed while responding on 11 September 2001. More than 12,000 firefighters have been diagnosed with at least one linked condition, an FDNY health report found.

Cancer has become a leading line-of-duty killer for firefighters across the country. The Firefighter Cancer Support Network has begun a national campaign warning that the danger did not end in 2001.

A Crisis Spread Across All 50 States

An estimated 400,000 people were exposed to the mix of pulverised concrete, asbestos, and jet-fuel residue that settled over lower Manhattan. As of 30 June 2026, the World Trade Centre Health Program was treating 145,275 responders and survivors, who now live in every US state.

Across the programme's life, 57,044 members have had a cancer certified as 9/11-related, with respiratory disease and cancer driving most of the caseload.

Newly Released Records Reopen the Air Question

Days before the anniversary, New York City released more than 170,000 pages of previously sealed records that firefighters say prove officials knew the air was hazardous while telling the public it was safe.

In September 2001, then-Environmental Protection Agency (EPA) administrator Christine Whitman said testing showed the air was safe to breathe. The EPA's inspector general later found the agency struggled to gather and share information about conditions around the towers.

'We were dying with every breath,' said Lieutenant James Brosi, who leads the Uniformed Fire Officers Association and worked at Ground Zero. Mayor Zohran Mamdani, marking his first anniversary in office, said the day should centre on victims, survivors, and first responders.

The seventh moment of silence will follow the reading of the names and stay a permanent part of the ceremony. Proceedings begin at 8:30am, with the first silence at 8:46am, the minute the North Tower was struck.