The Indiana Department of Environmental Management has declared an Air Quality Action Day, urging approximately 7 million residents to avoid drive-thrus and limit activities that contribute to air pollution. Rising ozone levels are expected to reach unhealthy thresholds, prompting officials to recommend various measures to mitigate pollution. Residents are encouraged to carpool, walk, bike, or use public transportation, and to refuel vehicles after dusk when ozone levels are lower. Additional recommendations include postponing lawn mowing, consolidating car trips, and working from home if possible to reduce vehicle emissions. Inside homes, turning off lights and appliances, adjusting thermostats, and using energy-efficient products are advised. Ground-level ozone, which can lead to respiratory issues, particularly affects sensitive groups such as young children, the elderly, and individuals with pre-existing respiratory conditions. The Indiana Department of Environmental Management monitors ozone levels, which are most concerning from March through October, and issues alerts based on weather conditions and pollutant concentrations.