MuckRock and the Cicero Independiente are also looking for volunteers who are interested in having a free air quality sensor installed outside their home or business. Fill out the form in the article for more information.

MuckRock y Cicero Independiente también están buscando voluntarios que estén interesados ​​en tener un sensor de calidad del aire instalado fuera de su hogar o negocio. Complete el siguiente formulario para obtener más información.

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 2010, the number of Californians living in areas exposed to at least one day of 100 micrograms of PM2.5 barely crossed 200,000. A decade later, that number increased to 4.5 million.

In the late 1980s, an area of the Jurupa Valley in Riverside, California began a transformation that would turn it from a community of sprawling dairy farms to hub for enormous warehouses. David Danelski, then an investigative reporter for the Riverside-Press Enterprise, unraveled the details through public records on town planning and found one important document missing from projects approved by county officials for more than a decade: the environmental impact statement. Here are his tips on this and other key records requests you can file.