Dilution is used as a decontamination method for an anhydrous ammonia incident.

Dilution is used as a decontamination method for an anhydrous ammonia incident.

• A. False
• B. Only when water is not available
• C. Never used
• D. True

Answer: (D)

The key idea here is that dilution with water is an effective first step to reduce exposure from an anhydrous ammonia release. Ammonia dissolves readily in water, so applying copious water to contaminated skin, clothing, or surfaces rapidly lowers the chemical’s concentration and helps wash it away, reducing both contact hazard and inhalation risk from vapors. Because of this, dilution is a standard decontamination method for ammonia incidents—quick, practical, and widely recommended in hazmat guidance. That’s why the statement is true: using water to dilute and flush away the chemical is an appropriate and effective decontamination approach. If water isn’t available, responders would adapt with other methods, but that doesn’t mean dilution isn’t used when water is accessible.

The key idea here is that dilution with water is an effective first step to reduce exposure from an anhydrous ammonia release. Ammonia dissolves readily in water, so applying copious water to contaminated skin, clothing, or surfaces rapidly lowers the chemical’s concentration and helps wash it away, reducing both contact hazard and inhalation risk from vapors. Because of this, dilution is a standard decontamination method for ammonia incidents—quick, practical, and widely recommended in hazmat guidance.

That’s why the statement is true: using water to dilute and flush away the chemical is an appropriate and effective decontamination approach. If water isn’t available, responders would adapt with other methods, but that doesn’t mean dilution isn’t used when water is accessible.