Where Do Dissolved Solids Come From?

What Are Total Dissolved Solids?
August 6, 2017
Why Should You Measure the TDS Level in Your Water?
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Where Do Dissolved Solids Come From?

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  • Some dissolved solids come from organic sources such as leaves, silt, plankton, and industrial waste and sewage. Other sources come from runoff from urban areas, road salts used on street during the winter, and fertilizers and pesticides used on lawns and farms.
  • Dissolved solids also come from inorganic materials such as rocks and air that may contain calcium bicarbonate, nitrogen, iron phosphorous, sulfur, and other minerals. Many of these materials form salts, which are compounds that contain both a metal and a nonmetal. Salts usually dissolve in water forming ions. Ions are particles that have a positive or negative charge.
  • Water may also pick up metals such as lead or copper as they travel through pipes used to distribute water to consumers.
  • Note that the efficacy of water purifications systems in removing total dissolved solids will be reduced over time, so it is highly recommended to monitor the quality of a filter or membrane and replace them when required.

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