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Travel Time Equations for Dispersive Contaminants
Author(s) -
Wheatcraft Stephen W.
Publication year - 2000
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.2000.tb00242.x
Subject(s) - travel time , environmental science , contamination , arrival time , mechanics , hydrology (agriculture) , soil science , geology , geotechnical engineering , physics , engineering , ecology , transport engineering , biology
Travel time estimates for contaminant fronts or plumes are often obtained using estimates of average pore velocities from Darcy's law calculations. These estimates provide information only about the travel time of the average concentration (or the peak, for contaminant pulses). Equations are developed here for other portions of the breakthrough curve for a nonreactive contaminant, which allow estimates of travel time for concentrations other than the average or the peak. These travel time equations provide a simple method for calculating early arrival times for low concentrations.