The use of lead solder to join plumbing pipes used to be common worldwide. Although use of lead solder in plumbing was banned in 1986 in the United States, older plumbing may still contain lead-soldered joints. In addition, plumbing parts made of brass contain approximately 8 percent lead. Through the corrosion of lead-containing plumbing, water can contain elevated levels of lead.
Therefore, wherever you are in the world, if you are concerned that there may be lead in your drinking water, the simplest thing that you can do is follow the advice issued by the U.S. Environmental Protection Agency and the American Water Works Association: