# sulfur hexafluroide as a greenhouse gas and its atmospheric journey

Maybe a simple question, but if sulfur hexafluoride is 6 times heavier than air then how does it get into the high atmosphere. All be it in low quantities now, but there is a large stock of the stuff in potentially vulnerable and prevalent infrastructure such as substations of the electricity grid. If there was a much larger leak of the chemical than is now observed would we expect it to reach the upper atmosphere to become a dangerous greenhouse gas at that position in the atmosphere... as i understand potent ghg's induce greater warming when high in the atmosphere. Anyone know more about this? its mode of transport there, what activities are getting it up there? Ive done some research on existing and past growing concentrations but wonder if its Global warming potential is dangerous unless it can actually accumulate significantly high in the atmosphere?

• (So if I read ideatank's question right, he suggests there is data to show some $SF_6$ in the upper atmosphere [if not, perhaps the question should be altered])... are you suggesting the process that got it there is that it mixes up to the turbopause, and small amounts get above the mixed realm and settle just above that? Feb 27 at 7:50