Mold Assessment Technician Practice Exam

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Sampling results for airborne contaminants can be affected by which of the following?

Temperature fluctuations
High indoor personal activity
Humidity levels
Light exposure

The correct answer is: High indoor personal activity

High indoor personal activity can indeed have a significant effect on sampling results for airborne contaminants. When individuals are active in a space—moving around, speaking, or performing tasks—they can stir up dust, mold spores, and other particulate matter that may be present in the environment. This disruption can lead to fluctuations in airborne contaminant levels at the time of sampling, providing inaccurate or misleading data about actual air quality. Factors such as temperature fluctuations, humidity levels, and light exposure also impact airborne contaminants, but their influence is generally more associated with the growth and survival of mold rather than directly altering the concentration of airborne particles during sampling. For example, humidity can contribute to the proliferation of mold spores, while temperature can affect the viability of molds, but these aspects might not directly influence the immediate airborne levels during a specific sampling event as human activity does.