Abstract
The relationship between maximum concentration and longitudinal distance, independent of time, can determine the size of the area to be contaminated, under well-defined conditions of injection and flow in a saturated medium. The envelope curve for maximal concentrations is easily obtained as a function of the axial distance in non-dimensional variables in the cases of one- and two-dimensional uniform flow, as well as in those of radially symmetric converging or diverging flow. Graphs providing relations between dimensionless variables (as described in the text) are given for the following cases: 1. (1) uniform flow with instantaneous discharge of a pollutant; measurement downstream of the injection point, no transverse dispersion; 2. (2) uniform flow with continuous injection of a pollutant; measurement downstream of the injection point, influence of transverse dispersion included; 3. (3) convergent radial flow towards a well; pollution caused by an instantaneous pointsource at some distance; and 4. (4) divergent radial flow from an injection point; pollution caused by instantaneous injection of a pollutant.
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