Following the Sept. 11 attacks, air quality concerns were a major issue. The Mamdani administration has released a large number of documents related to this topic. The records total over 170,000 pages and detail air quality concerns during that time.

These documents have been made public, providing information about the air quality issues that arose after the attacks. For more detailed information, further resources are available.

The release of these documents provides a significant amount of information about the air quality concerns that existed at that time.