Which of the following best describes mass decontamination?

Mass decontamination refers to the process of simultaneously decontaminating multiple individuals who have been exposed to hazardous substances. This approach is crucial in emergency situations where a large number of people may be at risk and require immediate attention to prevent further contamination or health hazards. By treating several individuals at the same time, mass decontamination ensures a swift response, reducing the potential for harm and streamlining the overall decontamination process.

In contrast, focusing on individual treatment would imply a slower, more methodical approach that may not be efficient or feasible during large-scale incidents. Primary decontamination for minor exposures also does not capture the essence of mass decontamination, as it specifically targets those with less severe exposures. Lastly, suggesting that decontamination is limited to chemical substances overlooks other methods and processes that can aid in decontamination, such as physical removal of contaminants through water or other cleaning techniques. Thus, the definition of mass decontamination is best encapsulated by the concept of simultaneous treatment for multiple individuals exposed to harmful agents.