You might be breathing a lot of bad air, according to a new report being released Wednesday.
The National Resources Defense Council has put the Washington-Baltimore region on its "Filthy 15" list, according the Associated Press.
The AP says the list was based on ground-level ozone emissions, and that many households in the area spend one out of four days breathing this bad air.
Other cities cracking the "Filthy 15" included Philadelphia, New York and Los Angeles.
We'll provide more details after the list is officially released.
Published at 7:36 AM EDT on Oct 26, 2010 | Updated at 7:45 AM EDT on Oct 26, 2010
Copyright Associated Press / NBC4 Washington