Newly declassified documents reveal previously undisclosed details about air quality conditions in New York City following the September 11 attacks, offering fresh insights into the environmental aftermath of the disaster. The records, obtained through public records requests, describe the presence of hazardous substances in the air and their potential health impacts on residents and first responders. Experts say the findings could provide a clearer understanding of long-term effects tied to the collapse of the World Trade Center towers. The release follows decades of speculation about the extent of contamination in the days and weeks after the attacks.
New 9/11 documents about air quality in New York City after attacks released CBS News