Exposure assessment is a crucial aspect of environmental and occupational health research that involves measuring and evaluating the levels of contact that individuals or populations have with various environmental hazards, contaminants, or stressors. This research area aims to understand how and to what extent people are exposed to these factors, as well as the potential health risks and impacts associated with these exposures. Exposure assessment methods may include environmental monitoring, biomonitoring, surveys, interviews, and modeling techniques to estimate and quantify exposure levels. The results of exposure assessment studies provide valuable information for risk assessment, epidemiological investigations, and the development of policies and strategies to mitigate potential health risks associated with environmental exposures.