Identify one factor that can complicate exposure assessments in multifaceted workplaces.

The complexity of exposure assessments in multifaceted workplaces is significantly influenced by the presence of multiple hazardous substances and their interactions. When various contaminants are present simultaneously, it becomes challenging to predict and assess their combined effects accurately. Toxicological interactions may occur, such as synergism or antagonism, where the overall risk of exposure could be greater or lesser than the sum of individual exposures. This interactivity complicates the establishment of safe exposure levels and requires a more sophisticated approach in both assessing risks and implementing controls.

In contrast, while factors like the availability of safety equipment, employee turnover rates, and regulatory oversight can also play roles in workplace safety, they do not inherently complicate the fundamental assessment of exposure as directly as multiple hazardous substances do. Safety equipment can mitigate risks if properly used; turnover might affect consistency in training or adherence to protocols; and regulatory oversight could influence compliance efforts. However, the core challenge of measuring and understanding the impact of varied hazardous substances is a primary concern when conducting exposure assessments in complex environments.