‘Insane’ California Air Topped World Health Standard by 60 Times

California’s air exceeded world health standards by 60 times last week, and conditions on Monday continued to top safe thresholds with the deadliest blaze ever in the state is about 65 percent contained.

Last week, particulates in the air reached as high as 1,500 micrograms per cubic meter. The threshold set by the World Health Organization is 25. Lower levels on Monday still exceeded the benchmark.

“It is just insane,” said Rebecca Buchholz, a project scientist, who studies pollution from fires at the National Center for Atmospheric Research in Boulder, Colorado. “It is quite amazing how high these fine-particulate levels are.”

Read the entire article at Bloomberg.com