Exposure Pathway 01
Exposure Pathway 01 : Medicine. (a) The path a chemical or physical agent takes from source to exposed organism; consists of (1) source or release, (2) transport medium (possible), (3) exposure point, and (4) exposure route. [AIHA, 2000: Risk Assessment Principles for the Industrial Hygienist, attributed to USEPA RAGS, 1989]; (b) The physical course a chemical or pollutant takes from the source to the organism exposed. [USEPA, 1992: GL for Exposure Assessment] [USEPA, 1992a: Dermal Exposure Assessment] [REAP, 1995: Residential Exposure Assessment Project] [USEPA, 1997a: EPA Terms of Environment] [USEPA, 1997b: Exposure Factors Handbook] [AIHA, 2000: Risk Assessment Principles for the Industrial Hygienist]; (c) The path from sources of pollutants via, soil, water, or food to man and other species or settings. [USEPA, 1997a: EPA Terms of Environment]; (d) The course a chemical takes from the source to the exposed individual. An exposure pathway analysis links the sources, locations, and types of environmental releases with population locations and activity patterns to determine the significant pathways of human exposure. [USEPA, 1999: Superfund Risk Assessment Glossary]
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