59 percent nitrogen, 21 percent hydrogen<span>, 9 percent </span>carbon dioxide<span>, 7 percent methane and 4 percent oxygen. Only about one percent of a fart contains </span>hydrogen sulfide gas<span> </span>
A typical fart is composed of about 59 percent nitrogen, 21 percent hydrogen, 9 percent carbon dioxide, 7 percent methane and 4 percent oxygen. Only about one percent of a fart contains hydrogen sulfide gas and mercaptans, which contain sulfur, and the sulfur is what makes farts stink.
