Millions of residents across Indiana were told to avoid using drive-thrus and limit certain everyday activities on Thursday as air quality alerts were issued statewide due to rising ozone levels expected to reach unhealthy thresholds.
The Indiana Department of Environmental Management (IDEM) declared an Air Quality Action Day effective across nearly the entire state of Indiana, encompassing roughly 7 million people, with alerts remaining in effect until midnight local time. Officials warned that ozone pollution could reach levels classified as “Unhealthy for Sensitive Groups,” prompting guidance to reduce emissions and protect public health.
The alert comes as warm early-summer temperatures and strong sunlight create ideal conditions for ozone to build across the region. Ozone forms when pollutants from vehicles and other sources react in heat and stagnant air, meaning spikes are more likely during hotter stretches. These seasonal conditions can push air quality into unhealthy ranges, particularly in densely populated areas where emissions are higher…