Air Quality July 4, 2023 11:29 am Fourth of July Fireworks Forecast Fourth of July fireworks mean poor air quality. Here’s why. US & World Videos 0:36 Truckload of lithium ion batteries on fire in San Pedro 2:47 First Alert Forecast: Cool morning 0:52 Judge orders VA to lock down UCLA's Jackie Robinson Stadium 2:00 UCLA's first day of fall quarter after campus protests 0:30 Thieves use truck to break into Sunland liquor store