Health warnings issued across 11 US states as toxins fill the air
Air quality alerts warn Americans to limit outdoor activity due to dangerous ozone and wildfire smoke/PM2.5, especially for children, older adults, and people with heart or lung conditions.
Stay indoors alert as toxic smog spreads across three US states
Ground-level ozone pollution prompted air quality alerts across Arizona, Texas, and California, urging residents to limit outdoor activity to prevent respiratory and long-term health harm.