Protection Devices and Measures. Device used to measure an individual's personal exposure to environmental contaminants or other stressors. - A device worn on or near the contact boundary that measures concentration [Zartarian, et al., 1997: Quant. Def. of Exp. & Related Concepts] Glossary of Exposure Assessment Related Terms: A Compilatio. Prepared by the Exposure Terminology Subcommittee of the IPCS Exposure Assessment Planning Workgroup for the International Programme on Chemical Safety Harmonization of Approaches to the Assessment of Risk from Exposure to Chemicals, November 1, 2001