Fire Retardant Concerns: Los Angeles is using bright pink fire retardant, Phos-Chek, to combat ongoing wildfires. The substance raises safety and environmental concerns due to its potential impacts on wildlife and public health. Impact on Communities: The use of Phos-Chek fire retardant is crucial for protecting Los Angeles communities from wildfires, but its deployment has sparked debates over environmental safety, particularly regarding aquatic ecosystems.