Hazardous Materials Management System Practice Test

Using a chemical dispersant to disperse or break up the material involved in liquid spills in water is called:

Damming Dispersion Diversion Retention

Correct Answer:

Dispersion

Explanation:

Chemical dispersion describes using a dispersant to break up a liquid spill in water. The dispersant lowers interfacial tension and helps the spilled material—such as oil—form smaller droplets that become suspended in the water column, promoting dilution and biodegradation. This approach is different from damming (creating barriers to block flow), diversion (changing the spill’s path), or retention (keeping the material contained). Dispersants are chosen based on spill conditions and ecological considerations, but when the goal is to break up and dilute the spill in the water, dispersion is the correct term.

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