air quality March 11, 2025 9:11 am California has 10 out of 15 most polluted cities in North America A new study on air quality found that Los Angeles was the most polluted major U.S. city, while Seattle was the cleanest. Local 9:55 Single mom sobs after landing dream job thanks to Pennsylvania Women Work 10:28 Family receives emotional surprise after daughter's cancer battle 3:48 Viral therapy dogs jump into action after tragic D.C. plane crash 0:28 ‘There was a collision': Air traffic control recording captures moment of crash 3:30 Witness describes seeing plane in moments before it crashed
