Open Air Chicago
Open Air Chicago is a city initiative by the Chicago Department of Public Health that aims to reduce exposure to airborne pollutants by identifying and improving areas with poor air quality. The program uses mobile air monitoring to collect data and inform community-driven actions for cleaner air.
Background
Open Air Chicago is a city-run initiative by the Chicago Department of Public Health (CDPH) that tracks and displays real-time air quality data across the city. It uses a network of sensors to measure pollutants like fine particulate matter (PM2.5) and ozone, which are linked to respiratory and cardiovascular health problems. The program is part of a broader push for environmental justice — Chicago has significant air quality disparities, with historically marginalized (often low-income and minority) neighborhoods experiencing worse pollution due to proximity to highways, industry, and other sources. The data helps residents make informed decisions about outdoor activity and informs policy on pollution reduction.