The emission of hydrofluorocarbons (HFCs), perfluorocarbon (PFCs) and sulfur hexafluoride (SF 6 ) from China in 1995 are estimated primarily as 2 244 t, 2 581 2 t and 215 t, which account for 0 9%, 6 45% and 3 7% of the world total emission, respectively.