A Dirty-Air Puzzle

New report tackles a pollution puzzle: while other pollutants drop on weekends, smog-causing ozone levels actually increase over the weekend in certain parts of California.

1 minute read

October 27, 2000, 10:00 AM PDT

By Abhijeet Chavan @http://twitter.com/legalaidtech

In the Los Angeles area, ozone levels typically are 32 percent higher on Saturdays and Sundays than they are Monday through Friday when freeways are clogged with commuters. The difference is 25percent in San Francisco. The phenomenon in Los Angeles and San Francisco, first noticed in the 1980s, has four possible explanations, according to the report.

Thanks to Abhijeet Chavan

FULL STORY: Report cites several reasons for weekend smog increase

Wednesday, October 25, 2000 in Contra Costa Times-Walnut Creek

Environment California

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