Which of the following is NOT a physical decontamination method?

Neutralizing is a chemical decontamination method, used to alter or neutralize hazardous substances through a chemical reaction. In contrast, physical decontamination methods involve the removal of contaminants without altering their chemical structure.

Vacuuming, scraping, and isolating are all techniques that focus on the physical removal or separation of contaminants. Vacuuming actively removes particulates from surfaces or environments, scraping involves physically removing layers of contaminant from surfaces, and isolating refers to separating contaminated materials to prevent their spread. Therefore, identifying neutralizing as the capability that does not fit within the category of physical decontamination methods demonstrates an understanding of the distinction between chemical and physical decontamination techniques.