August 19, 2020 6:12 pm Bay Area Enveloped by Bad Air Quality The air quality has improved slightly in some areas since Wednesday morning, but it’s still at unhealthy levels across the Bay Area, especially in the Peninsula. Jackie Ward reports. US & World Videos 2:59 2 San Jose police officers shot, injured in gunbattle at hotel 1:46 Pursuit standoff causes traffic backup in Solano County 3:23 UC Davis finds brain sizes are growing 3:36 Waymo expands driverless taxi service 5:21 A closer look: 2 police officers shot, injured in San Jose