Here's why:
* Molecules are the basic building blocks of matter, like water molecules (H2O).
* Dissolved solids encompass all the other substances that are dissolved in the water. These can include:
* Inorganic ions: like calcium (Ca2+), magnesium (Mg2+), sodium (Na+), chloride (Cl-), and sulfate (SO42-)
* Organic compounds: like humic acids, pesticides, and pharmaceuticals
* Other particles: like bacteria, viruses, and suspended solids
TDS is typically measured in milligrams per liter (mg/L) or parts per million (ppm). It gives an indication of the total amount of dissolved substances in the water, which can be important for:
* Drinking water quality: High TDS levels can affect taste, odor, and can potentially be harmful to health.
* Industrial processes: TDS can affect the performance of equipment and processes.
* Environmental monitoring: High TDS levels in water bodies can indicate pollution.
