A new study shows Atlanta ranks ninth as the nation's most-polluted city.

The report was issued by the American Lung Association.

Earlier this month, the Georgia Conservancy and seven other environmental advocacy groups formed the Georgia Air Coalition. The group will lobby state leaders to do more to clean the air.

Here's a look at the U-S cities with the most soot and dust pollution measured on an annual basis. Atlanta actually tied for ninth with Birmingham, Alabama.

1. Los Angeles
2. Bakersfield, California
3. Pittsburgh
4. Visalia, California
5. Fresno, California
6. Detroit
7. Hanford, California
8. Cleveland
9. Birmingham
9. Atlanta