"This is our Hurricane Katrina—an epochal disaster that's changing Los Angeles," said Dr. David Eisenman, whose research ...

Wildfires like those in Los Angeles that destroy urban structures release toxic chemicals, including lead, into the air.

Not far from where Ceci Carroll lives, a rock-mining company has polluted the air with dust across the San Gabriel Valley, she said. Now, as crews clean charred remains from the Los Angeles wildfires, ...