"The findings give new insight into the dangers of urban wildfires that burn plastics and other chemicals in homes and property."
"At the height of the Los Angeles County wildfires, atmospheric concentrations of lead, a neurotoxin, reached 100 times average levels even miles from the flames, according to early detailed measurements obtained by The New York Times. Levels of chlorine, which is also toxic at low concentrations, reached 40 times the average.
The spiking levels underscore the added danger from wildfires when cars, homes, and other structures burn, researchers said. Lead is often present in paint and pipes used in older homes, while chlorine and other chemicals are generated when plastic melts or combusts.
These fires were “a wake-up call,” said Haroula Baliaka, a Ph.D. candidate in atmospheric chemistry at the California Institute of Technology, who is part of a new nationwide effort to monitor airborne chemicals in real time. They are “no longer just about burning trees and grass,” she said. “They are urban wildfires, fueled by the very materials that make up our homes and cities.”"
Hiroko Tabuchi and Mira Rojanasakul report for the New York Times January 20, 2025.
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