Potassium

Potassium in a naturally occurring ionic compound (or salt) and can be found in most bodies of water. It generally finds it way into water through clay, which is made up of minerals containing potassium, and other natural processes. Potassium is widely used in glass production and can be found in glass manufacturers wastewater. Potassium is required by organisms for nerve functions but can be toxic to aquatic life and humans in higher levels – hence why it needs to be treated and monitored.