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Button that takes you to the Acid Mine Drainage page. Button that takes you to the Chemistry page. Button that takes you to the Dissolved Oxygen page. Button that takes you to the Alkalinity page. Button that takes you to the Hardness page. Button that takes you to the pH page. Button that takes you to the History of Coal Mining page. Image that says Acid Mine Drainage: Conductivity.
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Button that takes you to the Dredging page.		 Acid Mine Drainage: Conductivity
The ability of an aqueous solution to carry an electric current is called conductivity. The current is conducted in the solution by the movement of ions. Conductivity increases with increasing amounts and mobility of ions. In natural water, the dissociation of inorganic compounds is the main source of ions in the solution. Therefore, measuring conductivity reveals the concentration of dissolved salts in water. Conductivity is also affected by heavy metal ions released into water by acid mine drainage.

Try this with deionized water:
 Image displaying a battery connected to deionized water. Please have someone assist you with this.

 

Now add some salt(NaCl):
 Image displaying a battery connected to deionized water with some added salt. Please have someone assist you with this.

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