What is the most commonly used decon method?

• A. Washing and dilution
• B. Dry brushing
• C. Chemical neutralization
• D. Mechanical scrubbing

Answer: (A)

Removing contaminants from skin, gear, and surfaces as quickly and safely as possible is the goal of decontamination. Washing with soap and water is the most universally effective approach because it uses simple dilution and mechanical action to physically lift and rinse away a wide range of substances. This method reduces the contaminant load efficiently, is safe to perform in most field situations with basic supplies, and minimizes the chance of spreading contaminants to others or the environment.

Dry brushing, while sometimes used in the field, tends to aerosolize or redistribute particles rather than truly remove them, which can increase exposure risk. Mechanical scrubbing is more aggressive and can irritate skin or damage protective equipment; if not carefully controlled, it can also spread contaminants. Chemical neutralization only works for specific chemicals that have compatible neutralizers and requires exact knowledge of the contaminant; it isn’t a general solution for most decon needs.