Among the metals Lead is a metal that humans do. The toxicity of it most. Due to the wide use Especially in the industry is the use of lead as a raw material lot.
Among the metals in the world lead the human interest with its toxicity, most due to greater utilization, especially in industry, lead compounds are used as bulk raw materials.
In all the metal in the world lead to the metal human toxicity of it's attention to the most because of its advantage in the industry, especially with the use of lead as a raw material.