by Ericka | Dec 18, 2013 | International Smelting & Refinery (IS&R)
Arsenic is a powerful poison. It occurs naturally in the earth’s crust in small amounts. It is also found in minerals and ore. You can’t taste or smell arsenic. Once released it it doesn’t evaporate, but it can dissolve in water. It can stay in a... by Ericka | Dec 18, 2013 | International Smelting & Refinery (IS&R)
Lead is a natural element in the earth’s crust. It is the fifth most important metal in the USA economy. It can enter the body through the atmosphere or from drinking water. It can be bright silver in color or have a bluish cast. Once exposed to the air it turns...
