| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Completed exposure pathway | Health | [see exposure pathway]. Comprehensive Environmental Response, Compensation, and Liability Act of 1980 (CERCLA) CERCLA, also known as Superfund, is the federal law that concerns the removal or cleanup of hazardous substances in the environment and at hazardous waste sites. ATSDR, which was created by CERCLA, is responsible for assessing health issues and supporting public health activities related to hazardous waste sites or other environmental releases of hazardous substances. This law was later amended by the Superfund Amendments and Reauthorization Act (SARA). (references) | |
| Exposure pathway | Administration | The route by which radioactivity travels through the environment to eventually cause radiation exposure to a person or group. (references) | |
| Exposure pathway | Environment | 1: The release pathway is the physical course that a chemical takes from its emission by the facility to the exposed individual and is related to the type of release. RSEI models fugitive and stack air releases and fish ingestion and drinking water intake from releases to surface water. (references) | |
| 2: The course a chemical or physical agent takes from the source to the exposed organism; describes a unique mechanism by which an individual or population can become exposed to chemical or physical agents at or originating from a release site. Each exposure pathway includes a source or a release from a source, an exposure point, and an exposure route. (references) | |||
| 3: The path from sources of pollutants via, soil, water, or food to man and other species or settings. (references) | |||
| 4: The physical course a chemical or pollutant takes from the source to the organism exposed. (references) | |||
| 5: A route by which materials could travel between the point of release and the point of delivery of a radiation or chemical dose to a receptor organism. (references) | |||
| Exposure pathway | Health | 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 environmental 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. (references) | |
| Exposure pathway | Physics | An exposure pathway outlines the route a contaminant may follow to reach humans. Contaminants may enter the local environment by air or water and pass through soil, plants, livestock, or wildlife, ultimately reaching humans through inhalation (breathing), ingestion (eating and drinking) or adsorption through skin or wounds. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
