To maximize benefits while minimizing complications, the use of casts and splints is generally limited to the short term. Excessive immobilization from continuous use of a cast or splint can lead to chronic pain, joint stiffness, muscle atrophy, or more severe complications (e.g., complex regional pain syndrome).
Energy Department: Fracking doesnât contaminate groundwater. In this March 29, 2013 photo, technicians inside a trailer direct the pressure and mix of water and chemicals pumped into an Encana Oil & Gas (USA) Inc. well during hydraulic fracturing, outside Rifle, in western Colorado.
Once in the aquifer they move with the groundwater flow. As contamination moves it disperses. This means that the concentration decreases as it moves farther away from the source of the pollution. For that reason there are different concentrations of contaminants at different points in the aquifer.