A description of the way that a chemical moves from its source (where it began) to where and how people can come into contact with (or get exposed to) the chemical. ATSDR defines an exposure pathway as having 5 parts: Source of Contamination Environmental Media and Transport Mechanism Point of Exposure Route of Exposure Receptor Population When all 5 parts of an exposure pathway are present, it is called a Completed Exposure Pathway. If any part is missing, people can not be exposed.

a description of the process by which a chemical containment moves from a source of contamination to a receptor population

the path a hazardous substance takes or could take from a source to an exposed organism. The exposure pathway describes the mechanism by which an individual or population is exposed or has the potential to be exposed to hazardous substances at or originating from a site. Each exposure pathway includes an actual or potential source or release from a source, an exposure point, an an exposure route. If the exposure point differs from the source of the hazardous substance, the exposure pathway also includes a transport/exposure medium. ( MTCA, p 16)

a route by which a radionuclide or other toxic material can enter the body. The main exposure routes are inhalation, ingestion, absorption through the skin, and entry through a cut or wound in the skin.

The physical course a chemical or pollutant takes from the source to the organism exposed.

The course an AGENT takes from the SOURCE to the TARGET.

The course a contaminant takes from its source to the exposed individual. A complete exposure pathway generally requires four elements: (1) a source and mechanism of release, (2) a retention or transport medium, (3) a point of potential human contact with the contaminant (referred to as the exposure point), and (4) an exposure route (e.g., external gamma irradiation, ingestion, inhalation, dermal absorption). If any of these elements is missing, the exposure pathway is considered incomplete.

The path from sources of pollutants via, soil, water, or food to man and other species or settings.

The course a chemical or physical agent takes from a source to an exposed organism. An exposure pathway describes a unique mechanism by which an individual or population is exposed to chemicals or physical agents at or originating from a site.

A description of the way that a chemical moves from its source (where it began) to where and how people can come into contact with (or get exposed to) the chemical. ATSDR defines an exposure pathway as having 5 parts: A. Source of Contamination, B. Environmental Media and Transport Mechanism, C. Point of Exposure, D. Route of Exposure, and E. Receptor Population. When all 5 parts of an exposure pathway are present, it is called a Completed Exposure Pathway. Each of these 5 terms is defined in this Glossary.

An exposure pathway is the process by which an individual is exposed to contaminants that originate from some source of contamination. It consists of five elements: 1) Source of Contamination, 2) Environmental Media/Transport, 3) Point of Exposure, 4) Route of Exposure and 5) Receptor Population.

The physical course of a radionuclide or other hazardous agent from its source to an exposed person.

The route a substance takes from its source (where it began) to its end point (where it ends), and how people can come into contact with (or get exposed to) it. An exposure pathway has five parts: a source of contamination (such as an abandoned business); an environment media and transport mechanism (such as movement through groundwater); a point of exposure (such as a private well); a route of exposure (eating, drinking, breathing, or touching), and a receptor population (people potentially or actually exposed). When all five parts are present, the exposure pathway is termed a completed exposure pathway.

The route of contaminants from the source of contamination to potential contact through a medium (air, soil, surface water, or groundwater) to a human or environmental receptor.