â What/How do you mean?â = â Meaning? â [=what exactly do you mean when you say that?] âHe can be a little difficult.â â I know what you mean.â [=I agree]
It has an atmospheric life of 3,200 years and global warming potential 23,900 times stronger than carbon dioxide. SF6 is considered one of the most dangerous greenhouse gases known. It is banned as a tracer gas and is limited to high voltage applications. In addition, the US Department of Energy repaired leaks in several laboratories, thereby reducing emissions by 35,000 pounds a year.
Plutonium is the most dangerous element you can handle because it is highly radioactive. Just inhaling a small amount of plutonium dust will give you lung cancer. However, plu â¦ tonium is rather hard to come by so the most dangerous element you will probably come into contact with is mercury.