This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Both metal and copper oxidize when exposed to oxygen and this is a natural process. Copper that is exposed to the outside environment is more likely to turn green and that is why copper vases and decorative pieces in gardens are often green.
Effect of Copper. Copper helps drive your metabolism by helping your cells produce energy. Your cells rely on a constant supply of energy to function, since the millions of chemical reactions occurring in your cells require some energy input. Copper helps you create adenosine triphosphate, or ATP, a molecule your cells use as fuel.