V - Copper
Copper is a naturally occurring element that is found in many different forms in the environment, including in water. Copper is essential for human health, as it is required for the proper functioning of the body's enzymes, hormones, and cells. However, when present in excessive levels in water, copper can be harmful to human health and the environment. One of the primary sources of copper in water is from the corrosion of copper pipes and fixtures in homes and buildings. As water flows through copper pipes, it can cause the metal to corrode and release copper ions into the water. Additionally, copper can also be found in water as a result of agricultural and industrial activities, such as the use of pesticides and fertilizers, and the discharge of industrial waste into water sources. In conclusion, copper is an essential element for human health, but excessive levels of copper in water can be harmful to human health and the environment.