Which tactic is used to minimize the effects of a hazardous spill?

The tactic of confinement is specifically aimed at containing the hazardous material to prevent it from spreading further, thus minimizing its impact on the environment and human health. This can involve strategies such as creating barriers or dikes that hold the hazardous substance in a designated area, which helps to reduce the likelihood of contamination to surrounding areas. By restricting the movement of the hazardous material, responders are better able to manage the situation and implement further response actions safely.

Other tactics, while valuable in specific scenarios, serve different functions. Diversion might redirect the flow of a spill to a less sensitive area, but doesn't necessarily prevent spread. Neutralization involves chemically altering the hazardous material to lessen its harmful effects, which can be useful but may not be viable for all substances. Dispersal aims to break down or spread out the hazardous spill over a larger area, which can sometimes make the situation worse rather than containing it. Therefore, confinement stands out as the most effective tactic for minimizing the immediate effects of a hazardous spill.