A new report by the American Lung Association finds that the St. Louis metro area still
has high levels of ozone pollution, the main ingredient in smog.
The annual State of the Air report ranked St. Louis 13th out of 217 metro areas in the country for ozone pollution. That’s worse than St. Louis performed in last year’s report, although the trend over recent decades has been gradual improvement.
It's getting warmer in St. Louis and that means the issue of the region's air quality returns to the forefront.
Historically, the area has had pretty poor ozone levels. (Ozone is the main ingredient of urban smog that can be a significant health hazard, particularly for children with asthma.) Susannah Fuchs with the American Lung Association says the region’s air quality has gotten better but it still needs work.