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Researchers say wildfire smoke is reversing years of air pollution progress
By: Amanda Brandeis
and last updated 2021-02-01 15:30:56-05
SAN DIEGO, Calif. â Record-setting wildfires are becoming a regular occurrence in the Western United States. It s a sobering trend that poses a threat to people across the country, as hazardous smoke pollutes the air.
âFires burn in California, or in Nevada and Arizona, and prevailing winds carry that smoke as far as the Eastern Seaboard. And it can cause measurable changes in PM2.5 concentrations, very far away, explained Michael Wara, a senior research scholar at the Stanford Woods Institute for the Environment.