The large mounds of fire debris that remain on Los Angeles County beaches have caused concerns about long-term effects on the environment and beachgoers.

Charred wood, plastic, chemicals and heavy metals were all part of the debris from the wildfires that washed out to the ocean during the rainstorms. Now, some of that sludge is washing back up on southland beaches.

Toxic debris from the Palisades Fire that spilled out into the Pacific Ocean is now washing up on the shores of Santa Monica, concerning environmental organizations.