Meanwhile, red-flag warnings for fire danger remain in effect until Wednesday evening.
RED FLAG WARNING for high fire danger due to gusty winds & low humidity across many areas of California. http://t.co/F7TqyEa7tn— CAL FIRE (@CAL_FIRE) January 15, 2014
warning: red flag warning still in effect! 3 homes burned in Kimball Island brush fire near Antioch . http://t.co/LAVXO4X0Kj— Kristen Sze TV News (@abc7kristensze) January 15, 2014
Scientists have long known that wildfires pollute the air with soot and other fine particles that are dangerous to human health. But as a new study shows, particle pollution from wildfires is much worse than previously thought.