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170K Pages: City Knew 9/11 Air Was Toxic
11 Sep
Summary
- Over 170,000 pages of air quality documents were released.
- City officials knew air quality was unsafe after 9/11.
- More people have died from 9/11 illnesses than the attack.

New York City has unveiled more than 170,000 pages of previously undisclosed records concerning air quality after the September 11, 2001, attacks. These documents demonstrate that city officials acknowledged unsafe breathing conditions around ground zero, contradicting public statements made at the time.
The released materials include contamination data, air quality reports, and internal communications from local environmental agencies. They show officials were concerned about air quality and potential legal liability due to public exposure to toxins. These findings emerge nearly 25 years after the attacks, a period during which the human toll from related illnesses has grown significantly.
Unions representing New York firefighters have voiced frustration over the revelations. Exposure to the toxic dust from the World Trade Center has been linked to increased risks of cardiovascular disease, respiratory illnesses, and thousands of cancer diagnoses among first responders. The ongoing health impact underscores that for many, the consequences of September 11th continue to this day.