Mamdani: NYC leaders ‘lied’ about post-9/11 air quality

New York City Mayor Zohran Mamdani on Tuesday made public a large trove of municipal records concerning the city’s handling of air-quality problems that followed the Sept. 11, 2001 terrorist attacks. Mamdani’s office said it released 170,000 pages of documents and the mayor asserted that prior city leaders had misled the public about how safe breathing conditions were in the aftermath.

The records were described by the mayor’s office as material tied to the city government’s response to the worsened air quality after 9/11. Mamdani used the release to criticize past officials, saying they had "lied" about the safety of the air, a claim his team has linked to public-health concerns stemming from that period.

Alongside the document release, Mamdani’s fiscal 2027 budget package includes $34 million related to the issue, according to his office. The inclusion of that funding in the mayor’s proposed budget signals an effort by the current administration to address matters connected to the post-9/11 air-quality legacy.

The mayor’s announcement places new public focus on the city’s past communications and actions after a major public-health event. The records' publication gives researchers, affected residents and journalists material to examine the municipal response, while the budget item indicates the city intends to devote resources to the matter going forward.