What is the pink powder being dropped from planes to fight California wildfires? Is it safe?

Phos-Chek, a pink fire retardant, is being used to combat California's wildfires, coating vegetation to slow flames. While crucial in wildfire management, it raises environmental concerns, particularly near waterways. Pilots face life-threatening risks deploying it, but for many communities, this solution is vital

What is the pink powder being dropped from planes to fight California wildfires? Is it safe?
Phos-Chek, a pink fire retardant, is being used to combat California's wildfires, coating vegetation to slow flames. While crucial in wildfire management, it raises environmental concerns, particularly near waterways. Pilots face life-threatening risks deploying it, but for many communities, this solution is vital