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چکیده
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Heavy metal pollution such as lead has become one of the most serious environmental problems today. Lead is a chemical element with an atomic number of 82, which is represented by the symbol Pb in the periodic table and is classified as a metal. This metal is heavy, toxic, and malleable and does not pass nuclear radiation. Due to this property, its use in industries related to nuclear physics has recently been expanded. Also, the treatment of lead is of special concern due to their recalcitrance and persistence in the environment.In 1995, the World Health Organization (WHO) set the limit of lead in water at 50 ppb. In 2010, the organization lowered the lead limit to 10 ppb. Also, according to the definition of the American Environmental Protection Agency (EPA), the permissible limit of lead in blood is 100 micrograms per liter, and in drinking water is 15 ppb.Therefore, it is very important to evaluate the available amounts of lead because of the possible risks.
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