Nearly two years after the tech company Microsoft installed more than 100 air quality sensors atop bus shelters across Chicago, a MuckRock analysis of the data documents the neighborhood-by-neighborhood hotspots and disparities — and raises questions about how air pollution continues to affect the city’s fenceline communities.

In its award announcement, the Institute for Nonprofit News noted that “this collaboration among five newsrooms revealed stark disparities in the way medical examiners reported cause of death during the pandemic and introduced a new method of analyzing mortality data.”

More than two years after the first Long COVID patients drew attention to their condition, the federal government’s response to this crisis has been frustratingly slow, experts say. If you are a patient, advocate, caregiver, researcher or someone else connected to the Long COVID community, we want to hear your thoughts on these questions.