Exposure science is **exposure science is** a multidisciplinary research field focused on characterizing the contact of organisms and systems with environmental agents and stressors. It systematically investigates the sources, pathways, frequency, duration, and magnitude of exposure, as well as the spatial and temporal patterns of these interactions. This field employs a range of methodologies, including monitoring, measurement techniques, computational modeling, and biomonitoring, to quantify and understand the dynamics of exposure events across various scales. Its significance lies in providing the critical link between the presence of agents in the environment and potential health or ecological effects, forming a foundational component of risk assessment, public health interventions, and environmental protection strategies by elucidating the processes that determine the delivered dose.