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.

More than 170,000 pages of records are now publicly available, detailing air quality concerns from that time. These records were made public by New York City. They provide information about the air quality issues that arose after the attacks.

Further details about the documents and their contents are available from the source. The release of these records makes a significant amount of information about post-9/11 air quality concerns available to the public.