[wenc]

I'm not sure if you are actually referring to nitrogen?

Nitrogen (N2) constitutes 78% of the air we breathe. It's an inert, nontoxic gas and one of the least hazardous gases around -- the primary hazard being that of asphyxiation in closed spaces at high concentrations (due to displacement of O2).

I'm not sure I follow that Belgium has an abundance of nitrogen. Every country in the world has an abundance of nitrogen - it's literally 78% of the air around us. To extract nitrogen, you pull air into a separation column and out comes N2. Any country in the world can do this. The two inputs are air and electricity (to power the compressor and other equipment).