As fire crews and air tankers work to block the wildfires' explosive growth, images of red clouds of fire retardant falling onto trees are common. What is it — and what's in it?
Crews battling the deadly ongoing Los Angeles wildfires have started dropping bright pink fire retardant known as Phos-Chek from the skies to combat the stubborn flames. The eye-catching flame ...
The red color of the fire retardant is caused by the chemical component iron oxide, commonly known as rust. The retardant is colored with the component so it is easily seen from the air and by ...