What is lead?

Lead is a common, naturally occurring metallic element that can be found in air, soil, and water. It is also a powerful toxin that is harmful to human health.

Lead was commonly used in gasoline and paint until the 1970s and is still found in products such as ceramics, batteries, ammunition, and cosmetics. Lead has been used for centuries in plumbing because of its pliability and resistance to leaks. In fact, lead’s chemical symbol, Pb, is derived from the Latin word for plumbing. In 1975, Canada banned the use of lead pipes in new construction, but lead-based solder and brass were used until 1986.