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.

Data sets

The Advanced Global Atmospheric Gases Experiment (AGAGE) Data - 2022-02-16 submission R. Prinn, R. Weiss, J. Arduini, T. Arnold, H. L. DeWitt, P. Fraser, A. Ganesan, J. Gasore, C. Harth, O. Hermansen, J. Kim, P. Krummel, Z. Loh, C. Lunder, M. Maione, A. Manning, B. Miller, B. Mitrevski, J. Mühle, S. O'Doherty, S. Park, S. Reimann, M. Rigby, T. Saito, P. Salameh, R. Schmidt, P. Simmonds, P. Steele, M. Vollmer, H. Wang, B. Yao, D. Young, and L. Zhou

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