Fluorinated Gas

Question 1

CFCs (Chlorofluorocarbons)

Answer 1

z Used in refrigeration, solvents, aerosols, and industrial applications.
z Phased out due to ozone depletion.Potent GHGs with higher greenhouse
effect potential than CO2.

Question 2

HFCs (Hydrofluorocarbons)

Answer 2

z Used in refrigeration, aerosols, solvents, etc., as CFC replacements. Potent
GHGs with long atmospheric lifetimes.
z Hydrofluorocarbons (HFCs) GWPs range from 140 to 11,700, lifetimes vary
between 1 to 270 year

Question 3

PFCs (Perfluorocarbons)

Answer 3

z Composed of carbon and fluorine. Emitted during aluminium production,
semiconductor manufacturing. Perfluorocarbons (PFCs) GWPs between
6,500 to 9,200, lifetimes span from 800 to 50,000 years.

Question 4

SF6 (Sulphur Hexafluoride)

Answer 4

z Used in magnesium processing, semiconductor manufacturing, and as a
tracer gas. Sulphur hexafluoride (SF6) GWP of 23,900, lasts around 3,200
years in the atmosphere.