Which of the following is NOT a method of spill control?

• A. Adsorption
• B. Dilution
• C. Vapor suppression
• D. Confining

Answer: (B)

Dilution is not considered an effective method of spill control because it involves adding a large volume of water or other substances to a spill, which can exacerbate the situation. While it may seem like a way to reduce the concentration of hazardous materials, dilution does not eliminate the hazard or prevent it from spreading. In many cases, it can lead to a larger area of contamination and complicate cleanup efforts.

In contrast, adsorption involves the use of materials that can attract and hold contaminants from spills, making it a preferred method for cleaning up hazardous materials. Vapor suppression, on the other hand, involves reducing the release of harmful vapors into the air, which is critical for protecting responders and the environment during a spill incident. Confining is about containing the spill to a specific area to prevent its spread. Therefore, dilution stands out as an inadequate technique for effectively managing spill incidents.