Articles | Volume 22, issue 5
Atmos. Chem. Phys., 22, 3371–3378, 2022
Atmos. Chem. Phys., 22, 3371–3378, 2022

Research article 14 Mar 2022

Research article | 14 Mar 2022

Global emissions of perfluorocyclobutane (PFC-318, c-C4F8) resulting from the use of hydrochlorofluorocarbon-22 (HCFC-22) feedstock to produce polytetrafluoroethylene (PTFE) and related fluorochemicals

Jens Mühle et al.


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on acp-2021-857', Anonymous Referee #2, 21 Nov 2021
  • RC2: 'Comment on acp-2021-857', Anonymous Referee #1, 29 Nov 2021
  • RC3: 'Comment on acp-2021-857', Anonymous Referee #3, 21 Dec 2021
  • RC4: 'Comment on acp-2021-857', Anonymous Referee #4, 06 Jan 2022
  • AC1: 'Comment on acp-2021-857', Jens Mühle, 15 Feb 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jens Mühle on behalf of the Authors (15 Feb 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (16 Feb 2022) by Ivan Kourtchev
Short summary
Emissions of the strong greenhouse gas perfluorocyclobutane (c-C4F8) into the atmosphere have been increasing sharply since the early 2000s. These c-C4F8 emissions are highly correlated with the amount of hydrochlorofluorocarbon-22 produced to synthesize polytetrafluoroethylene (known for its non-stick properties) and related chemicals. From this process, c-C4F8 by-product is vented to the atmosphere. Avoiding these unnecessary c-C4F8 emissions could reduce the climate impact of this industry.
Final-revised paper