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The quality changes of shallow groundwater from karst hilly areas in Guiyang region of China impacted by the urbanization were investigated. The results show that the major ions in shallow groundwater from the karst hilly areas are mainly composed of HCO3−, SO42−, Ca2+ and Mg2+, and the concentrations scopes of NO3−, Cl−, K+ and Na+ of the groundwater in agricultural, residential and industrial...
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