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Health Effects of Exposures to Lead in Drinking Water

Author: Time: 07/18/2016 Read: 1002

Lead can enter drinking water when service pipes that contain lead corrode, especially where the water has high acidity or low mineral content that corrodes pipes and fixtures. The most common problem is with brass or chrome-plated brass faucets and fixtures with lead solder, from which significant amounts of lead can enter into the water, especially hot water.
 
Corrosion is a dissolving or wearing away of metal caused by a chemical reaction between water and your plumbing. A number of factors are involved in the extent to which lead enters the water, including:
·         the chemistry of the water (acidity and alkalinity) and the types and amounts of minerals in the water,
·         the amount of lead it comes into contact with,
·         the temperature of the water,
·         the amount of wear in the pipes,
·         how long the water stays in pipes, and
·         the presence of protective scales or coatings inside the plumbing materials.

It is important to recognize all the ways a child can be exposed to lead. Children are exposed to lead in paint, dust, soil, air, and food, as well as drinking water. If the level of lead in a child's blood is at or above the CDC action level of 5 micrograms per deciliter, it may be due to lead exposures from a combination of sources. EPA estimates that drinking water can make up 20 percent or more of a person’s total exposure to lead. Infants who consume mostly mixed formula can receive 40 percent to 60 percent of their exposure to lead from drinking water.

Don't forget to filter wate before drink.