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. Each exposure pathway includes a source or release from a source, an exposure point, and an exposure route. If the exposure point differs from the source, a transport/exposure medium, such as air, or media in cases of intermedia transfer, is also included.

Source: 22 SDR 86, effective December 18, 1995; transferred from § 74:03:33:02, July 1, 1996.

General Authority: SDCL 34A-2-93 , 34A-2-99 , 34A-2-101 , 34A-12-7.

Law Implemented: SDCL 34A-2-98 , 34A-12-1.