DURHAM (WTVD) -- A Durham man was hurt by a falling nitrogen gas tank overnight ... but their condition was unknown. Images from the scene also appeared to show gas leaking out of the tank.

ELIJAH NOUVELAGE//Getty Images Tanks of liquid nitrogen are seen at ... in Gainesville, Georgia. Nitrogen gas makes up roughly 78 percent of Earth's atmosphere by volume, according to the Royal ...

Many blacked-out sections cover details such as how the gas system is stored, tested and set up. Some parts still left visible do warn about the dangers associated with having nitrogen tanks in ...

Our brain knows when we breathe air but can be tricked briefly when breathing pure nitrogen. The chest rises and falls, the lungs inflate and deflate, but it’s like filling the gas tank with water.

As the waiver form notes, nitrogen is an invisible, odorless, tasteless gas that makes up about 78% ... from Alabama that there will be oxygen tanks, paramedics and ambulances nearby.

Alabama intends to carry out the first known execution by nitrogen gas this week, when it’s scheduled to put to death Kenneth Smith some 14 months after failing to carry out his capital ...

Louisiana used nitrogen gas to put a man to death Tuesday evening ... Some passed out prayer cards with photos of a smiling Hoffman and planned a Buddhist reading and “Meditation for Peace.” ...