9/11 Dust Exposure Linked to Long-Term Health Risks

Published: 11 September 2026. The English Chronicle Desk. The English Chronicle Online

More than two decades after the September 11 attacks, the consequences of the World Trade Center disaster continue to emerge in the lives of people who survived it.

For one British journalist who reported from New York in the immediate aftermath, returning to the Ground Zero memorial this year carried a deeply personal significance. He was no longer visiting only as a reporter remembering the victims of 9/11. He was standing among their names as someone whose own health has since become linked to the toxic environment created by the attacks.

In September 2001, he walked through the streets of lower Manhattan as a Daily Mirror journalist, surrounded by the enormous cloud of dust and smoke generated by the collapse of the Twin Towers. He later described ash covering pavements so heavily that workers were shovelling it like snow and recalled being able to taste the acrid smoke.

At the time, there was no way to know what those exposures might mean decades later.

Now he has been enrolled in the official World Trade Center Health Program as a responder following a diagnosis of cardiac sarcoidosis, a rare inflammatory disease affecting the heart.

His medical history does not by itself establish that the disease was caused by his exposure to the 9/11 dust. The US World Trade Center Health Program makes an important distinction between enrollment and certification: membership provides access to the programme, while individual conditions must separately meet certification requirements before treatment is covered as a WTC-related illness.

Nevertheless, scientific research has established that people exposed to the World Trade Center dust and smoke have experienced serious long-term health consequences. Mount Sinai researchers have found associations between intense exposure to the initial dust cloud and cardiovascular abnormalities, including changes linked to atherosclerosis.

The journalist’s journey back to Ground Zero therefore carried a significance that could scarcely have been imagined on the morning of September 12, 2001.

At about 7.55am that day, he was photographed in midtown Manhattan by photographer John Chapple. The two men then began walking towards Ground Zero, with the enormous dust cloud still hanging above the city.

The previous morning had changed the United States and the world.

At 8.40am on September 11, 2001, the journalist had been taking his two young daughters, then six and seven, to school. He was living in the United States and working as the Daily Mirror’s US editor.

Six minutes after he returned home, American Airlines Flight 11 struck the North Tower of the World Trade Center.

What followed became one of the defining moments of the modern era.

The next morning, the streets of Manhattan were transformed. At Grand Central Station, he witnessed strangers wishing each other good luck before heading into an uncertain city. Notices offering crisis counselling were already appearing.

Walking towards Ground Zero, he encountered the physical remains of the disaster. A passenger’s boarding pass from the Boston-to-Los Angeles flight lay among the debris. A badly burned bank statement from a World Trade Center company had also survived.

Shoes were scattered in the streets.

The atmosphere was strangely quiet.

The journalist was even given a lift by firefighters in a damaged fire engine. Its windows had been blown out, yet the crew insisted on taking him and photographer Charlie Varley to their next assignment. As they travelled through deserted streets with the sirens operating, an elderly man stood on the pavement applauding.

It was an extraordinary moment in a city struggling to comprehend what had happened.

The effects were also felt far beyond Manhattan.

In Stamford, Connecticut, where the journalist and his family lived, 10 people were killed. A neighbour’s car remained abandoned at the local railway station for weeks because its owner had gone to work at the World Trade Center and never returned.

Another man from the community walked 28 miles home after being caught in the disaster. He arrived covered in dust and deeply traumatised.

A woman the journalist knew had witnessed people falling from the towers. She was pregnant at the time and returned home terrified about bringing a child into a world that suddenly seemed profoundly unsafe.

The consequences of that morning therefore spread through families, schools, workplaces and communities.

Yet some of the most persistent consequences would not become apparent for years.

In March 2024, more than two decades after 9/11, the journalist suddenly developed severe shortness of breath. He was taken by ambulance to Princess Alexandra Hospital in Harlow, Essex.

Doctors regarded his condition as critical.

His wife, Lois, was told that medical staff might have to stop his heart and use a defibrillator to restart it. A member of the hospital staff held her hand and warned that he might not survive.

He was defibrillated again the following day before being transferred by ambulance to London’s Bart’s Hospital.

There, doctors implanted an implantable cardioverter defibrillator, a device designed to detect dangerous heart rhythms and deliver an electrical shock when necessary.

Further investigations revealed cardiac sarcoidosis.

Sarcoidosis is an inflammatory disease in which clusters of immune cells called granulomas can form in organs and tissues. When the heart is affected, the condition can interfere with electrical signalling and heart muscle function and can lead to potentially dangerous arrhythmias.

The journalist was subsequently enrolled in a specialist cardiac sarcoidosis programme at Bart’s, where he became one of around 120 patients being monitored and contributing to research into the disease.

For him, the diagnosis created an unexpected connection between two periods of his life separated by more than 20 years.

He had spent the immediate aftermath of the attacks breathing an atmosphere containing dust, smoke and a complex mixture of potentially hazardous substances. Mount Sinai research has documented the scale of the environmental exposure faced by people who worked at Ground Zero. Studies have identified materials including cement dust, smoke, glass fibres and heavy metals, while earlier research found that people who arrived earliest at the site experienced the greatest exposure.

Researchers have subsequently identified long-term respiratory, cardiovascular, gastrointestinal, mental-health and cancer-related consequences among responders and recovery workers.

A 2024 Mount Sinai study examining the combined environmental exposures experienced by rescue and recovery workers further highlighted the complex relationship between hazardous substances encountered after the attacks and chronic disease.

The existence of those studies has become increasingly important as the population exposed to 9/11 continues to age.

The World Trade Center Health Program was established under the James Zadroga 9/11 Health and Compensation Act and is administered by the National Institute for Occupational Safety and Health, part of the US Centers for Disease Control and Prevention. It provides medical monitoring and treatment for eligible responders and survivors and is currently authorised through 2090. The programme now serves more than 125,000 responders and survivors.

Its work reflects an uncomfortable reality: the physical disaster ended within hours, but its health consequences did not.

For people who were at Ground Zero, the Pentagon or the Pennsylvania crash site, or who lived, worked or studied in affected areas, the medical consequences can emerge long after the original exposure. The programme’s eligibility rules specifically recognise people who were present in the New York City disaster area or dust cloud on September 11 and those who lived, worked or attended school in the area during the relevant periods.

That long-term perspective has also changed the way the attacks are remembered.

At the Ground Zero memorial, the journalist recently stood beside the names of 2,983 people killed in the attacks and their aftermath. The waterfalls surrounding the memorial provided a quiet backdrop to a day that was both commemorative and deeply personal.

Among the names were people whose stories he had previously reported, including firefighter Gary Geidel, Daniel Lee and Fire Department chaplain Mychal Judge.

But this time, he approached the memorial with knowledge of his own illness.

The experience prompted him to think about the thousands of people who were exposed to the dust and smoke and who later developed serious diseases. Some have died from illnesses associated with their exposure. Others continue to undergo medical monitoring years after the attacks.

Michael Barasch, an attorney and advocate involved in the 9/11 health and compensation movement, has argued that authorities underestimated the dangers of the air around Ground Zero. His own experience with 9/11-related illness has made him a prominent campaigner for affected workers and survivors.

John Feal, another prominent 9/11 health advocate, has spent years drawing attention to responders who became sick after the attacks. His work includes efforts to ensure that people who died from 9/11-related illnesses are remembered alongside those killed on the day itself.

For survivors and responders, the definition of a 9/11 victim has consequently become broader.

The tragedy is no longer confined to the 2,977 people murdered in the attacks themselves. It also includes people whose lives were subsequently altered by trauma, exposure and disease.

The full medical legacy may never be completely known.

What is increasingly clear is that the World Trade Center disaster created an environmental and public-health crisis whose effects have continued across generations. The scientific record shows that heavy exposure to the dust cloud was associated with measurable health risks, including cardiovascular changes, while federal programmes continue to provide long-term monitoring and treatment for affected populations.

For the British journalist, the diagnosis of cardiac sarcoidosis has changed the meaning of a place he first visited as a reporter.

In 2001, he walked towards Ground Zero to document history.

Twenty-three years later, he was fighting for his own health.

He has been able to return to work because his condition is currently being managed, with specialist treatment and monitoring helping him live with a disease described as incurable.

But the memory of that white cloud remains.

More than two decades after the towers collapsed, the dust that settled over Manhattan has not disappeared entirely from the lives of those who breathed it in. For some, it remains in medical records, hospital appointments and lifelong diagnoses.

And for others, like the journalist standing once again at the memorial, it is a reminder that the consequences of September 11 did not end when the smoke cleared.

They continued quietly, sometimes invisibly, long after the world had moved on.

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