Caltrans District 7, which serves Los Angeles and Ventura counties, shared on X Wednesday various freeway and highway closures “due to fires or wind-related incidents” in the area it serves. Here’s what is closed and opened as of 10 a.m. Wednesday due to wildfires and weather events, according to Caltrans.

Southern California — with sprawling cities, clogged freeways and heavy industry — is already notorious for some of the worst air quality in the nation. This week's wildfires are putting millions of people at risk for immediate health problems and longer term issues.