L.A. region begins the year with the smoggiest first 5 months in a decade
- Posted on June 6, 2026
- By Los Angeles Times
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- 1 min read
L.A. region begins the year with the smoggiest first 5 months in a decade
So far this year, the South Coast air basin, which includes Los Angeles, Orange, Riverside and San Bernardino counties, has seen 39 days when the concentration of lung-irritating ozone exceeded the federal standard, according to preliminary state air quality data.
