In air sampling, what is the aim of having a control sample?

The aim of having a control sample in air sampling is to provide a baseline for data comparison. Control samples are crucial for understanding the levels of contaminants present in the environment. By comparing the results from the control sample to those collected from the area of interest, researchers can determine if there has been an exposure to harmful substances beyond typical background levels.

This baseline helps to establish whether significant changes have occurred over time or in response to specific exposures. It allows for better interpretation of the data, ensuring that decisions made regarding air quality and safety are based on solid evidence.

While verifying the effectiveness of air filtration, enhancing sample collection protocols, and ensuring compliance with regulations are important aspects of air sampling programs, they are secondary goals that can benefit from the foundational data provided by control samples.