Metro Atlantas air quality was so bad Friday that the area shot past a Code Red to a Code Purple, and Saturday already looks like it will be just as bad as thermometers across the region race into triple-digits again.To help vulnerable metro Atlantans escape the high temps, more cooling stations are opening, and the city of Atlanta announced at noon that seven of its public swimming pools will offer free admission today.

via Crazy heat turns Atlanta purple  | ajc.com.