LA County April 19, 2017 7:25 pm LA County Worst in Air Quality Nationally: Report The American Lung Association gave LA County an “F” for air quality in a report released Wednesday. Angie Crouch reports for the NBC4 News at 5 p.m. on Wednesday, April 19, 2017. US & World Videos 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:42 USC students share thoughts on cancelation of main commencement 0:45 Where will the 2025 NFL draft take place? 1:23 NFL draft prospects continuing family legacies 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger
