Heavy metals are high-density metallic elements that can be toxic or poisonous even at low concentrations. Human beings are exposed to these elements are different circumstances during their day to day lives. These metals if accumulated, can cause harmful effects to the health and have a negative impact. These elements do not have a biological role but impair the normal functioning of the human body in different ways. They can interfere with metabolic processes by acting as a pseudo element of the body. The harmful effect of accumulation depends on the amount of exposure, duration, and nature of exposure. The
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