Elevated ozone and fine particulate matter levels pose health risks, particularly for individuals with heart or lung conditions. During Air Quality Action Days, exposure to these pollutants can exacerbate respiratory and cardiovascular issues. The combination of stagnant air, industrial emissions, and wildfire smoke can significantly degrade air quality, especially in areas near Lake Michigan. Researchers have also noted that ozone damage to plants mirrors its harmful effects on human lungs, highlighting the broader environmental and health implications.