Frische R, Klöpffer W, Rippen G, Günther K O
Ecotoxicol Environ Saf. 1984 Aug;8(4):352-62. doi: 10.1016/0147-6513(84)90004-6.
Global distribution models which can be used for evaluating the environmental impact of persistent chemicals are not well suited to assess the environmental impact of less persistent substances; this is due to the fact that the environmental effects caused by the latter substances--if there are any--are only local or regional (close to the emission source), but not ubiquitous. As a tool for estimating potential regional exposure concentrations, the Environmental Model Segment Approach (EMSA) is presented. This model yields information about possible concentrations in reasonable worst-case situations.