Bloomberg: Air quality in San Francisco sank to the level of smog-choked Beijing this week, as soot from more than a dozen wildfires in California’s wine country blanketed the Bay Area.
As San Francisco residents woke up to a hazy sky for the fifth day in a row, the concentration of dangerous particulate matter was forecast to be 158 on the air-quality index, according to the Bay Area Air Quality Management District. That’s roughly on par with notoriously smoggy Beijing, which clocked in at 165. Professor John Balmes is quoted.
Read the story here.