Part 4 of Abating Hazardous Air Pollutants: Lead
What is Lead?
Back in middle school most of us probably learned a little about lead. It is in the grey area on the periodic table, is a metal, has a chemical element in the carbon group and has a symbol of Pb. Lead is a soft metal that easily tarnishes and has a shiny finish. It is a double magic number in the nuclear shell model which makes it sound quit fancy and it’s many uses and users may agree.
Where is lead found?
Lead is very common in stars but here on Earth lead is found in minerals that are above the Earths crust. It’s compound is similar to zinc and cooper and as with those two minerals is usually found in ore. Lead deposits are also common in hydrothermal vein, impregnation, and replacement deposits; volcanogenic sedimentary deposits; and hydrothermal or marine sedimentary deposits. The largest resources of lead are in Australia, China, Ireland, Mexico, Peru, Portugal, Russia as well as the US. [Read more…]