September 11, 25 Years Later: The Fire Service's Evolving Understanding of Toxic Exposure

Portland, Oregon, USA, August 30th, 2026, FinanceWire

Twenty-five years ago, the fire service faced a single morning that changed everything firefighters thought they knew about their job. September 11, 2001, is remembered first for extraordinary bravery: first responders running toward danger while everyone else ran away. But it is also remembered for something else, well documented in the years since: thousands of responders who worked at Ground Zero went on to develop serious, often fatal illnesses tied to what they were exposed to in the aftermath, long after the immediate crisis had passed.

That reality reshaped how the fire service understands risk. For generations, danger meant heat, flame, and structural collapse. What became undeniable in the years following September 11th is that a different kind of danger exists too, one that does not announce itself with smoke or fire, but settles quietly into gear, lungs, and skin, and stays there long after a scene is declared clear.

An Understanding Built On Research, Not Assumption

This is not a lesson confined to one historic event. It has become a foundational understanding that shapes how departments think about every call today. Chronic exposure to heat, smoke, and toxicants puts firefighters at higher risk for developing cancer when compared to non-firefighters, and that exposure does not require visible smoke to occur. The danger persists through overhaul and cleanup, through every phase of a fire scene that most people outside the profession never think about.

In 2022, the International Agency for Research on Cancer (IARC) formally classified occupational exposure as a firefighter as carcinogenic to humans. In 2025, 80% of International Association of Fire Fighters (IAFF) member line-of-duty deaths were linked to cancer. These are not abstract statistics. They describe the same underlying risk that became so visible in the aftermath of September 11th: that the danger firefighters face does not end when the fire does.

From Understanding To Action

Recognizing a risk and addressing it are two different things. Firefighter turnout gear traps carcinogens deep within its fibers, layers that traditional water washing was never fully equipped to reach. Studies on standard cleaning methods have shown effectiveness ranging from just 15% to 40%. Comparative testing of NFPA-specified SVOCs found that water washing achieved only a 66% average removal rate, with individual contaminants such as Pyrene having a removal rate as low as 27%. Gear can look and smell completely clean while still carrying measurable levels of these substances deep within its structure.

Emergency Technical Decon (ETD) was founded to protect the people beneath the gear, built on exactly this understanding. The company's Liquid CO2+ Enertia system was engineered specifically to solve the problem that surface-level cleaning was never enough to address. Independent testing has shown this process removes more than 84% of PFAS, 99.9% of SVOCs, 75% of heavy metals, and 99.9999% of biological contaminants from turnout gear, addressing contamination at a molecular level that water-based cleaning was never designed to reach.

Twenty-five years after September 11th, the fire service understands something it once did not: that protecting firefighters means protecting them long after the fire is extinguished. That understanding continues to evolve as new hazards, including lithium-ion battery fires, introduce contamination profiles that the fire service is still learning to fully address.

Continuing The Work

This anniversary is not just a moment to reflect on the past. It is a reminder of how far the science has come, and how much further it still needs to go. ETD's mission exists because firefighters put their lives on the line for their communities every day, and the company exists to protect them in return, removing harmful contaminants from PPE and preserving gear performance throughout its service life. Twenty-five years of hard lessons deserve more than remembrance. They deserve continued action, delivered through technology built specifically to meet the standard those lessons demand, refined constantly through ongoing laboratory research as new hazards continue to emerge.

Contact