Los Angeles air 'cleanest in world' since COVID-19. 6:11pm Apr 8, 2020. (Ron Eisenbeg/Michael Ochs Archives via Getty Images) “Only twenty of ten on Monday morning and already the sky was a flat canvas of smog haze pulled taut to its combustible edges as far as the eye could see.” The notorious Los Angeles smog is nowhere insight, and the city's enjoying its longest stretch of good air quality in at least 40 years -- but of course, the reason for that sucks. The skyline of downtown Los Angeles seen through a smoggy twilight haze in 1975. According to the California Air Resources Board, the last time ozone (a major contributor to smog) in the Los Angeles area reached unhealthy levels was in … The Los Angeles skyline shrouded in smog as seen from the 1st street bridge in July 1993. By CNN.
Tourists at the Griffith Observatory observation deck look out at the Los Angeles skyline as heavy smog shrouds the city in California on May 31, 2015. With the state of California under a stay-at-home order for the last several weeks because of the threat of coronavirus, Los Angeles' notoriously dirty air has dramatically improved.

Los Angeles, a city well known for its smog and pollution currently has some of the cleanest air among major cities across the world, CNN reported. The mental image many people have of the Los Angeles skyline is one obscured by smog, with thick air pollution hanging over its downtown buildings.