Hotspot of glyoxal over the Pearl River delta seen from the OMI satellite instrument: implications for emissions of aromatic hydrocarbons

Chan Miller, Christopher; Jacob, Daniel J.; González Abad, Gonzalo; Chance, Kelly

doi:10.5194/acp-16-4631-2016

Articles | Volume 16, issue 7

https://doi.org/10.5194/acp-16-4631-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Ten years of Ozone Monitoring Instrument (OMI) observations...

https://doi.org/10.5194/acp-16-4631-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 7

Research article

|

13 Apr 2016

Research article |

| 13 Apr 2016

Hotspot of glyoxal over the Pearl River delta seen from the OMI satellite instrument: implications for emissions of aromatic hydrocarbons

Christopher Chan Miller, Daniel J. Jacob, Gonzalo González Abad, and Kelly Chance

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Jan 2022	9	12	1	22
Feb 2022	13	11	1	25
Mar 2022	18	13	0	31
Apr 2022	11	7	4	22
May 2022	5	5	0	10
Jun 2022	16	14	2	32
Jul 2022	9	8	0	17
Aug 2022	19	9	0	28
Sep 2022	12	12	1	25
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Nov 2022	24	13	0	37
Dec 2022	16	9	2	27
Jan 2023	22	14	1	37
Feb 2023	26	5	1	32
Mar 2023	25	14	0	39
Apr 2023	7	4	0	11
May 2023	36	15	0	51
Jun 2023	44	6	1	51
Jul 2023	41	11	2	54
Aug 2023	40	10	2	52
Sep 2023	47	15	2	64
Oct 2023	46	9	1	56
Nov 2023	36	5	1	42
Dec 2023	46	10	2	58
Jan 2024	40	5	1	46
Feb 2024	36	5	0	41
Mar 2024	43	19	2	64
Apr 2024	48	12	2	62
May 2024	33	24	8	65
Jun 2024	50	14	3	67
Jul 2024	20	10	2	32
Aug 2024	35	11	3	49
Sep 2024	16	14	0	30
Oct 2024	18	5	1	24
Nov 2024	16	6	2	24
Dec 2024	16	7	4	27
Jan 2025	27	11	0	38
Feb 2025	31	12	4	47
Mar 2025	20	13	2	35
Apr 2025	15	10	1	26
May 2025	28	5	0	33
Jun 2025	52	10	2	64
Jul 2025	44	18	0	62
Aug 2025	72	18	4	94
Sep 2025	69	13	2	84
Oct 2025	21	20	0	41
Nov 2025	30	22	0	52

Cumulative views and downloads (calculated since 19 Jan 2016)

Month	HTML	PDF	XML	Total
Jan 2016	92	61	2	155
Feb 2016	24	19	1	44
Mar 2016	27	19	0	46
Apr 2016	135	82	0	217
May 2016	32	21	1	54
Jun 2016	17	12	0	29
Jul 2016	7	9	1	17
Aug 2016	9	6	0	15
Sep 2016	14	7	0	21
Oct 2016	17	6	0	23
Nov 2016	4	18	0	22
Dec 2016	12	19	0	31
Jan 2017	26	34	1	61
Feb 2017	11	19	1	31
Mar 2017	21	34	2	57
Apr 2017	25	54	2	81
May 2017	25	19	1	45
Jun 2017	23	12	4	39
Jul 2017	18	9	0	27
Aug 2017	13	18	0	31
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Oct 2017	15	13	0	28
Nov 2017	18	19	2	39
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Jan 2018	11	13	1	25
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Feb 2021	15	13	4	32
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Jun 2021	8	12	0	20
Jul 2021	7	9	0	16
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Jan 2022	9	12	1	22
Feb 2022	13	11	1	25
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Apr 2022	11	7	4	22
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Jul 2022	9	8	0	17
Aug 2022	19	9	0	28
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Oct 2022	21	10	1	32
Nov 2022	24	13	0	37
Dec 2022	16	9	2	27
Jan 2023	22	14	1	37
Feb 2023	26	5	1	32
Mar 2023	25	14	0	39
Apr 2023	7	4	0	11
May 2023	36	15	0	51
Jun 2023	44	6	1	51
Jul 2023	41	11	2	54
Aug 2023	40	10	2	52
Sep 2023	47	15	2	64
Oct 2023	46	9	1	56
Nov 2023	36	5	1	42
Dec 2023	46	10	2	58
Jan 2024	40	5	1	46
Feb 2024	36	5	0	41
Mar 2024	43	19	2	64
Apr 2024	48	12	2	62
May 2024	33	24	8	65
Jun 2024	50	14	3	67
Jul 2024	20	10	2	32
Aug 2024	35	11	3	49
Sep 2024	16	14	0	30
Oct 2024	18	5	1	24
Nov 2024	16	6	2	24
Dec 2024	16	7	4	27
Jan 2025	27	11	0	38
Feb 2025	31	12	4	47
Mar 2025	20	13	2	35
Apr 2025	15	10	1	26
May 2025	28	5	0	33
Jun 2025	52	10	2	64
Jul 2025	44	18	0	62
Aug 2025	72	18	4	94
Sep 2025	69	13	2	84
Oct 2025	21	20	0	41
Nov 2025	30	22	0	52

Latest update: 18 Nov 2025

Short summary

Volatile organic compounds (VOCs) are important precursors for photochemical smog. Glyoxal is an organic compound produced in the atmosphere from reactions of larger VOCs. OMI satellite observations of glyoxal show a large hotspot over the Pearl River delta. The hotspot can be explained by industrial paint and solvent emissions of aromatic VOCs. Our work shows OMI observations are consistent with current VOC emissions estimates, whereas previous work has suggested large underestimates.