It marked the city's first smog incident. Here's what it looked like-back then and over the years that followed.

Facing a Bureau of Automotive Repair allegation? Automotive Defense Specialists helps protect and save your STAR-certified smog testing business. “In California, even hard-working and honest smog ...

Proponents of a "redesignation" say it reduces environmental red tape and promotes economic growth. Opponents say it strips public health protections.

This is read by an automated voice. Please report any issues or inconsistencies here. See more from the L.A. Times in Google Search. Set us as preferred It’s late July in 1943. Over the radio, Bing ...

Oregon DEQ has issued a smog advisory for Salem, Portland, Hermiston and Ontario as wildfire smoke blankets central, southern ...

North Texas smog has reached unhealthy levels 14 times this year. A moderate forecast offers only a partial reprieve.

Here’s a good reminder to anyone running a tuned car out in California: As of today, July 19, the state’s notoriously strict smog testing will automatically fail any car when it detects modified ...

Add Yahoo as a preferred source to see more of our stories on Google. Wearing gas masks and carrying protest signs, Pasadena housewives calling themselves the Smog-A-Tears parade through downtown ...

Economic interests have shaped society’s response to pollution. Now, policy needs to align with the scientific evidence to clean up our air.