MTS October 7, 2020 5:29 am San Diego MTS Celebrates California Clean Air Day NBC 7’s Audra Stafford shares how the San Diego Metropolitan Transit System is celebrating California Clean Air Day 2020, and how everyone can do their part to curb air pollution. US & World Videos 0:23 Names of two pandas coming to San Diego revealed 1:57 Small plane crashes into El Cajon neighborhood, pilot injured 7:30 US Coast Guard crew helps save Oceanside Pier during fire | San Diego News Daily 2:48 Water contact closure lifted near Oceanside Pier, where massive fire erupted 0:27 1 killed, another injured in double stabbing in Escondido