UV Index Resources. 1  Download the free UV Index smartphone app. 2  Stay up to date with our UV Index applications. 3  UV Alert map Exit- Areas in the U.S. where the UV Index is forecasted to be above normal. 4  Cities forecast bulletin Exit- A plain text listing of forecasted UV Index values for 58 U.S. cities.
High electrical conductivity refers to the ability of certain materials to conduct a large amount of electrical current. Electrical conductivity is abbreviated by the Greek letters sigma (Ï) or kappa (Îº). The SI unit of electrical conductivity is Siemens per meter (S/m).
Conductivity is a measure of waterâs capability to pass electrical flow. This ability is directly related to the concentration of ions in the water 1. These conductive ions come from dissolved salts and inorganic materials such as alkalis, chlorides, sulfides and carbonate compounds 3.