FGAs

FGas is a common shorthand for fluorinated greenhouse gases, a group of synthetic compounds that contain fluorine. The category includes hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6) and nitrogen trifluoride (NF3). These gases are widely used in refrigeration and air conditioning, insulation foams, semiconductor manufacturing, electronics, and various industrial processes.

Fluorinated gases are potent greenhouse gases with high global warming potentials and long atmospheric lifetimes relative to carbon dioxide. Their radiative forcing means that even small emissions can have large climate effects. For example, SF6 has one of the highest GWPs of any known greenhouse gas, while HFCs and NF3 span a range from hundreds to tens of thousands in GWP.

Regulation and policy: The European Union regulates fluorinated greenhouse gases under the F-Gas Regulation (EU Regulation 517/2014 and amendments), controlling production, import, use, recovery, and disposal, with mandatory leakage checks, labeling, and a phase-down of allowances. Globally, the Kigali Amendment to the Montreal Protocol aims to phase down HFCs to reduce future warming. Many countries also implement national reporting and inspections.

Mitigation and alternatives: The industry is pursuing containment, recycling, and destruction of F-Gases to minimize emissions. Substitutes and low-GWP options include low-GWP HFCs, hydrofluoroolefins (HFOs), and natural refrigerants such as carbon dioxide, ammonia, and hydrocarbons, depending on safety and application considerations.