Poor air quality poses serious health risks, especially for sensitive groups. Exposure to elevated ozone levels and fine particulate matter can irritate the lungs, trigger asthma attacks, and worsen heart and lung diseases. In Southern California, wildfire smoke contains fine particles that can penetrate deep into the lungs, increasing the risk of respiratory infections and hospitalizations. Urban areas with dense traffic and industrial emissions are experiencing the worst conditions. Health officials warn that prolonged exposure could lead to significant respiratory and cardiovascular issues, particularly for outdoor workers and active individuals.