A measurement collected from an individual's immediate environment using active or passive devices to collect the samples. [USEPA, 1992a: Dermal Exposure Assessment] Glossary of Exposure Assessment Related Terms: A Compilation. 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