Mitigating foam hazards includes:

• A. Disposing of used foam fire fighting equipment.
• B. Diluting foam concentrates so they are less harmful.
• C. Flushing used foam directly into the nearest body of water.
• D. Decontaminating PPE used at an incident where foam was used.

Answer: (D)

The main idea is that removing foam contaminants from responders and their gear is essential to protect people and prevent further spread of hazards. Foam concentrates can leave chemical residues on skin, clothing, and equipment that may cause irritation, perform poorly if re-exposed, or transfer to others. Decontaminating PPE used at an incident where foam was deployed reduces the risk of secondary exposure when doffing, handling, or reusing gear, and it helps prevent contaminants from spreading to vehicles, other equipment, or the environment. This is the most effective way to mitigate foam hazards because it directly addresses the primary source of exposure—the contaminated gear itself.

Disposing of used foam equipment isn’t the focus here, and altering foam concentrates on scene isn’t a recognized protective measure, since it can change foam performance and safety. Flushing foam into a body of water would create environmental contamination and is unsafe. While proper cleanup of foam on site and along with equipment maintenance are important, the best single action described is thorough decontamination of PPE after incidents involving foam.