Which is NOT a typical method for testing decontamination effectiveness?

Visual inspection is indeed a common technique used in various decontamination processes, but it's not considered a quantitative or systematic method for assessing decontamination effectiveness. Rather, it is subjective and relies on the observer’s judgment, which can introduce variability in results.

On the other hand, methodologies such as using an air monitor, UV light, or testing water (H2O) provide more objective measures.

Air monitors are specifically designed to detect and quantify hazardous substances in the air, giving a direct measure of contaminants remaining after decontamination efforts.

UV light can be employed both for disinfection and as a method to visualize residues on surfaces through fluorescence, enabling a more systematic approach to identifying areas that may still be contaminated.

Testing water used for rinsing or other decontamination can also provide concrete data on contaminants, helping to assess the effectiveness of the decontamination process directly.