After several wildfires combined to torch tens of thousands of acres of vegetation in Los Angeles County ... said the South Coast Air Quality Management District on Tuesday.

The South Coast Air Quality Management District extended ... it's going to be weeks." Los Angeles Unified School District remained closed on Friday due to the poor air quality.

The South Coast Air Quality Management District, a regional air pollution control agency, operates about 35 air monitoring stations across nearly 11,000 square miles of the Los Angeles region to ...