Abundances, emissions, and loss processes of the long-lived and potent greenhouse gas octafluorooxolane (octafluorotetrahydrofuran, c-C4F8O) in the atmosphere

Vollmer, Martin K.; Bernard, François; Mitrevski, Blagoj; Steele, L. Paul; Trudinger, Cathy M.; Reimann, Stefan; Langenfelds, Ray L.; Krummel, Paul B.; Fraser, Paul J.; Etheridge, David M.; Curran, Mark A. J.; Burkholder, James B.

doi:10.5194/acp-19-3481-2019

Articles | Volume 19, issue 6

https://doi.org/10.5194/acp-19-3481-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-19-3481-2019

© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 6

Research article

|

20 Mar 2019

Research article |

| 20 Mar 2019

Abundances, emissions, and loss processes of the long-lived and potent greenhouse gas octafluorooxolane (octafluorotetrahydrofuran, c-C₄F₈O) in the atmosphere

Martin K. Vollmer, François Bernard, Blagoj Mitrevski, L. Paul Steele, Cathy M. Trudinger, Stefan Reimann, Ray L. Langenfelds, Paul B. Krummel, Paul J. Fraser, David M. Etheridge, Mark A. J. Curran, and James B. Burkholder

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Feb 2019	17	8	0	25
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Jul 2019	19	13	0	32
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Oct 2019	16	4	1	21
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Jan 2020	22	7	2	31
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Jun 2020	18	12	1	31
Jul 2020	24	14	4	42
Aug 2020	13	11	1	25
Sep 2020	16	4	1	21
Oct 2020	6	8	1	15
Nov 2020	17	15	0	32
Dec 2020	19	6	0	25
Jan 2021	19	5	0	24
Feb 2021	8	3	0	11
Mar 2021	9	7	0	16
Apr 2021	6	6	0	12
May 2021	8	7	2	17
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Apr 2022	7	2	1	10
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Jan 2024	25	7	0	32
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Cumulative views and downloads (calculated since 25 Sep 2018)

Month	HTML	PDF	XML	Total
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Oct 2018	73	18	1	92
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Dec 2018	11	5	0	16
Jan 2019	16	3	0	19
Feb 2019	17	8	0	25
Mar 2019	169	56	3	228
Apr 2019	58	17	2	77
May 2019	33	16	0	49
Jun 2019	34	6	0	40
Jul 2019	19	13	0	32
Aug 2019	11	5	0	16
Sep 2019	9	6	0	15
Oct 2019	16	4	1	21
Nov 2019	16	10	0	26
Dec 2019	16	8	0	24
Jan 2020	22	7	2	31
Feb 2020	10	8	1	19
Mar 2020	8	7	1	16
Apr 2020	5	8	0	13
May 2020	14	9	1	24
Jun 2020	18	12	1	31
Jul 2020	24	14	4	42
Aug 2020	13	11	1	25
Sep 2020	16	4	1	21
Oct 2020	6	8	1	15
Nov 2020	17	15	0	32
Dec 2020	19	6	0	25
Jan 2021	19	5	0	24
Feb 2021	8	3	0	11
Mar 2021	9	7	0	16
Apr 2021	6	6	0	12
May 2021	8	7	2	17
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Jan 2022	10	8	2	20
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Dec 2023	20	6	2	28
Jan 2024	25	7	0	32
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Mar 2024	38	13	2	53
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May 2024	60	9	1	70
Jun 2024	78	6	1	85
Jul 2024	154	3	2	159
Aug 2024	53	10	4	67
Sep 2024	32	3	0	35
Oct 2024	51	6	0	57
Nov 2024	36	4	1	41
Dec 2024	35	5	2	42
Jan 2025	45	10	2	57
Feb 2025	43	6	0	49
Mar 2025	38	5	2	45
Apr 2025	29	10	0	39
May 2025	59	6	0	65
Jun 2025	68	10	6	84
Jul 2025	59	13	0	72
Aug 2025	72	23	1	96
Sep 2025	125	23	2	150
Oct 2025	54	22	0	76
Nov 2025	97	28	7	132
Dec 2025	70	35	1	106
Jan 2026	160	30	11	201
Feb 2026	90	13	5	108
Mar 2026	39	27	7	73
Apr 2026	28	9	1	38

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Short summary

We have discovered a new compound in the atmosphere, octafluorooxolane (c-C₄F₈O), from measurements in archived air samples. From our laboratory studies, we find that c-C₄F₈O is a very powerful greenhouse gas thereby contributing to global warming, and that it has a very long atmospheric lifetime of more than 3500 years. Based on our measurements we could reconstruct its atmospheric evolution over more than 4 decades. Based on this, we could estimate the global emissions of c-C₄F₈O.