"Tens of millions of Americans experienced at least a day last year shrouded in wildfire smoke. Entire cities were blanketed, in some cases for weeks, as unprecedented wildfires tore across the Western U.S., causing increases in hospitalizations for respiratory emergencies and concerns about people's longer-term health.
A new study finds those concerns are well founded.
Researchers with the Scripps Institution of Oceanography at the University of California, San Diego say that the tiny particles released in wildfire smoke are up to 10 times more harmful to humans than particles released from other sources, such as car exhaust.
The research, published in the journal Nature Communications Friday, paints a worrisome picture for Americans living on a fire-prone continent, especially as climate change amplifies fire risk worldwide."
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