Why are initial worker exposure air samples collected?

Initial worker exposure air samples are collected primarily to predict future exposures on the project. These samples establish a baseline measurement of airborne asbestos levels in the work environment, which helps assess the effectiveness of control measures implemented to minimize exposure. By understanding the initial levels of asbestos present, it allows project managers and safety professionals to anticipate how these levels may change over time and under varying work conditions. This predictive capability is essential for implementing appropriate safety precautions and ensuring that workers remain within safe exposure limits throughout the duration of the project.

Other options, while relevant to the broader context of air sampling, do not specifically capture the primary intent behind collecting initial air samples as effectively as this answer.