Millions of Americans have been urged to avoid driving on Thursday amid concerns over high air pollution levels.
The National Weather Service (NWS) has issued air quality alerts for major metropolitan areas in Texas, including Houston, Dallas-Fort Worth, San Antonio and Austin.
The warnings mean ground-level ozone and particulate concentrations are forecast to reach dangerous levels.
Why It Matters
The Texas Commission on Environmental Quality (TCEQ) warns that high levels of ground-level ozone are of particular concern because it is a “respiratory toxic agent that can cause acute respiratory health effects when people breathe high concentrations of it over several hours.”…