"Wildfire Smoke Sparks Health Concerns and Emergency Calls in Wisconsin"

Smoke from Canadian wildfires has caused hazy and unhealthy air conditions in Iowa, with over two-thirds of the state affected. The Iowa chapter of the American Heart Association warns that the smoke can increase the risk of sudden cardiac arrest due to the pollutants and fine particles present. Recommendations include staying indoors when air quality is poor, using air conditioning with high-quality filters, and staying hydrated. The air quality alert is expected to end on Thursday.