Definition: Contaminations are occurrences of substances or contaminants in a substance that can harm or cause damage to living organisms, human beings, and other living things. These contaminants may be present in various forms such as water, air, soil, etc., which are released into the environment through various sources such as industrial processes, agricultural activities, landfills, etc. Contaminations can occur naturally due to natural processes or man-made accidents. They can also be caused by environmental pollutants, chemicals, and other substances