Inhabitants of Bangladesh have deepened drinking water wells to avoid extracting arsenic-rich groundwater from shallow aquifers, but these may not be free from pollution either.
Groundwater transport
Modeling Transport and Charge Effects in Heterogeneous Media
Simulation of charged species reactive transport in complex physically and electrostatically heterogeneous porous media is possible with a multiple continua approach coupled to a geochemical code.
Treating Colloids as Clusters Better Predicts Their Behavior
New research suggests that an accurate prediction of colloidal particle mobilization in the environment should account for the effect of clustering.
A Closer Look at Turbulent Transport in Gravel Streambeds
Lab-built streams reveal new insights into turbulence-driven exchange of dissolved substances between stream water and sediments below.
Groundwater Contamination in Karst Regions Affects Human Health
Karst, Groundwater Contamination, and Public Health: Moving Beyond Case Studies; San Juan, Puerto Rico, 27 January to 1 February 2016