General Questions and Answers

Why Nitrogen is one of the most DANGEROUS GASES found in refineries and chemical plants?

The atmosphere we live in, the air we breathe every day consists of 78% Nitrogen, 21% Oxygen and 1% traces of other gases. But only oxygen is vital and essential to human beings for respiration/survival. Without sufficient oxygen, i.e. if oxygen level falls below 16%, we will die of asphyxiation.