Germany, the Netherlands, Norway, Sweden and Denmark are preparing a proposal to restrict PFAS for the European Chemicals Agency (ECHA) under the REACH regulation.
The document looks at how GWP measures up over 20 years to show the true environmental effect of common refrigerants used today.
The countries – Germany, the Netherlands, Norway, Sweden and Denmark – are seeking feedback on their proposal by September 19.
Researchers see a 33-fold increase in atmospheric TFA globally and up to 250-fold across Europe.
HFO-1234ze, marketed as a replacement refrigerant for HFCs, could produce significant amounts of an HFC with a GWP of more than 12,000, the study says.
The agency found significantly higher concentrations of TFA, an HFO byproduct, in rainwater.
ECOS calls for use of natural refrigerants, not HFOs and other new F-gases, whose climate impact is often understated.