(NBC) - The American Lung Association released it's eighteenth "State of the Air" report today.
The report finds 125 million people live in areas of the country with unhealthy levels of air pollution.
It also finds many cities with the cleanest air are on the east coast, including Burlington, Vermont and Naples, Florida, while cities, mostly in California, Utah, and Nevada are seeing spikes in particle pollution from wildfires, factories, and vehicles.
Doctors say pollutants can cause severe asthma attacks, particularly in vulnerable children.
The American Lung Association lists grades for each state by county.
You can find grades for your area at the attached link.