What is arsenic and why is it dangerous?
Arsenic is a chemical element that occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. It is commonly used as a means of poison in both humans and animals. A recent study found that over 137 million people in over 70 countries are probably affected by arsenic poisoning from drinking water. Additionally over 100,000 americans are hospitalized each year due to food poisoning.