enviromental+and+health+effects

**Enviromental effects....**
Nitrogen constitutes 78 percent of Earth's atmosphere and is a constituent of all living tissues. Nitrogen is an essential element for life, because it is a constituent of DNA and, as such, is part of the genetic code.

Nitrates and nitrites are known to cause several health effects. These are the most common effects:


 * Reactions with haemoglobin in blood, causing the oxygen carrying capacity of the blood to decrease
 * Decreased functioning of the thyroid gland
 * vitamin A nitrate
 * Fashioning of nitro amines, which are known as one of the most common causes of cancer

http://www.lenntech.com/Periodic-chart-elements/N-en.htm