why is the air quality bad in iowa today

The air quality in Iowa today is reported to be bad primarily due to smoke drifting in from wildfires burning in northwestern Canada. This smoke has caused fine particulate levels to rise above national health standards, leading to haze and unhealthy air conditions in parts of Iowa. The smoke carries tiny particles and gases that can be harmful to breathe, especially for people with heart or lung disease, older adults, children, teenagers, and outdoor workers. This smoky condition is expected to remain until a stronger weather system pushes it out of the area. To protect health, people are advised to limit outdoor activities, keep windows closed, and use air purifiers if available.