Effect of oxidant concentration, exposure time, and seed particles on secondary organic aerosol chemical composition and yield

Lambe, A. T.; Chhabra, P. S.; Onasch, T. B.; Brune, W. H.; Hunter, J. F.; Kroll, J. H.; Cummings, M. J.; Brogan, J. F.; Parmar, Y.; Worsnop, D. R.; Kolb, C. E.; Davidovits, P.

doi:10.5194/acp-15-3063-2015

Articles | Volume 15, issue 6

https://doi.org/10.5194/acp-15-3063-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-15-3063-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 15, issue 6

Research article

|

18 Mar 2015

Research article |

| 18 Mar 2015

Effect of oxidant concentration, exposure time, and seed particles on secondary organic aerosol chemical composition and yield

A. T. Lambe, P. S. Chhabra, T. B. Onasch, W. H. Brune, J. F. Hunter, J. H. Kroll, M. J. Cummings, J. F. Brogan, Y. Parmar, D. R. Worsnop, C. E. Kolb, and P. Davidovits

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Month	HTML	PDF	XML	Total
Dec 2014	326	603	11	940
Jan 2015	59	237	7	303
Feb 2015	17	50	1	68
Mar 2015	229	226	5	460
Apr 2015	74	127	4	205
May 2015	57	108	9	174
Jun 2015	83	100	4	187
Jul 2015	71	38	3	112
Aug 2015	50	75	3	128
Sep 2015	40	69	5	114
Oct 2015	51	68	0	119
Nov 2015	50	70	5	125
Dec 2015	24	39	4	67
Jan 2016	48	40	2	90
Feb 2016	41	26	4	71
Mar 2016	40	26	0	66
Apr 2016	15	22	1	38
May 2016	16	21	0	37
Jun 2016	9	7	0	16
Jul 2016	15	10	6	31
Aug 2016	14	11	0	25
Sep 2016	14	10	1	25
Oct 2016	14	14	0	28
Nov 2016	14	10	0	24
Dec 2016	6	9	0	15
Jan 2017	23	18	2	43
Feb 2017	16	14	0	30
Mar 2017	28	27	2	57
Apr 2017	28	29	2	59
May 2017	27	14	0	41
Jun 2017	38	23	0	61
Jul 2017	22	23	0	45
Aug 2017	12	21	2	35
Sep 2017	18	24	1	43
Oct 2017	21	28	0	49
Nov 2017	19	21	1	41
Dec 2017	8	19	1	28
Jan 2018	13	15	6	34
Feb 2018	5	26	1	32
Mar 2018	16	23	1	40
Apr 2018	14	25	6	45
May 2018	22	15	2	39
Jun 2018	10	23	1	34
Jul 2018	15	15	5	35
Aug 2018	21	31	0	52
Sep 2018	13	36	2	51
Oct 2018	23	37	4	64
Nov 2018	18	29	4	51
Dec 2018	15	12	1	28
Jan 2019	15	28	2	45
Feb 2019	15	12	2	29
Mar 2019	9	19	1	29
Apr 2019	13	19	0	32
May 2019	12	17	2	31
Jun 2019	12	18	0	30
Jul 2019	15	20	0	35
Aug 2019	7	39	5	51
Sep 2019	4	12	1	17
Oct 2019	9	8	0	17
Nov 2019	9	15	2	26
Dec 2019	10	14	3	27
Jan 2020	16	8	0	24
Feb 2020	11	8	1	20
Mar 2020	7	15	4	26
Apr 2020	6	6	0	12
May 2020	12	15	0	27
Jun 2020	27	17	3	47
Jul 2020	33	24	8	65
Aug 2020	13	12	4	29
Sep 2020	13	8	4	25
Oct 2020	20	14	2	36
Nov 2020	10	10	1	21
Dec 2020	14	15	0	29
Jan 2021	24	12	0	36
Feb 2021	21	18	1	40
Mar 2021	26	23	5	54
Apr 2021	13	15	1	29
May 2021	21	22	1	44
Jun 2021	19	19	2	40
Jul 2021	21	27	1	49
Aug 2021	25	16	1	42
Sep 2021	20	27	0	47
Oct 2021	24	47	4	75
Nov 2021	20	33	0	53
Dec 2021	33	31	4	68
Jan 2022	17	20	3	40
Feb 2022	22	15	2	39
Mar 2022	17	25	2	44
Apr 2022	21	13	1	35
May 2022	18	18	0	36
Jun 2022	17	20	7	44
Jul 2022	21	22	2	45
Aug 2022	16	25	2	43
Sep 2022	22	27	1	50
Oct 2022	25	17	2	44
Nov 2022	31	32	0	63
Dec 2022	31	19	0	50
Jan 2023	32	32	1	65
Feb 2023	33	40	3	76
Mar 2023	42	26	0	68
Apr 2023	15	22	0	37
May 2023	43	28	0	71
Jun 2023	50	23	1	74
Jul 2023	51	23	1	75
Aug 2023	51	31	2	84
Sep 2023	52	17	1	70
Oct 2023	59	12	2	73
Nov 2023	43	9	0	52
Dec 2023	54	14	1	69
Jan 2024	65	16	1	82
Feb 2024	49	18	1	68
Mar 2024	50	25	1	76
Apr 2024	56	25	3	84
May 2024	51	27	4	82
Jun 2024	66	27	4	97
Jul 2024	28	28	6	62
Aug 2024	33	18	8	59
Sep 2024	23	14	2	39
Oct 2024	40	17	1	58
Nov 2024	24	13	2	39
Dec 2024	27	22	2	51
Jan 2025	30	24	1	55
Feb 2025	46	23	0	69
Mar 2025	30	20	1	51
Apr 2025	35	22	1	58
May 2025	52	13	1	66
Jun 2025	76	17	3	96
Jul 2025	43	26	2	71
Aug 2025	111	31	5	147
Sep 2025	81	18	2	101
Oct 2025	46	35	0	81
Nov 2025	44	12	5	61

Cumulative views and downloads (calculated since 02 Dec 2014)

Month	HTML	PDF	XML	Total
Dec 2014	326	603	11	940
Jan 2015	59	237	7	303
Feb 2015	17	50	1	68
Mar 2015	229	226	5	460
Apr 2015	74	127	4	205
May 2015	57	108	9	174
Jun 2015	83	100	4	187
Jul 2015	71	38	3	112
Aug 2015	50	75	3	128
Sep 2015	40	69	5	114
Oct 2015	51	68	0	119
Nov 2015	50	70	5	125
Dec 2015	24	39	4	67
Jan 2016	48	40	2	90
Feb 2016	41	26	4	71
Mar 2016	40	26	0	66
Apr 2016	15	22	1	38
May 2016	16	21	0	37
Jun 2016	9	7	0	16
Jul 2016	15	10	6	31
Aug 2016	14	11	0	25
Sep 2016	14	10	1	25
Oct 2016	14	14	0	28
Nov 2016	14	10	0	24
Dec 2016	6	9	0	15
Jan 2017	23	18	2	43
Feb 2017	16	14	0	30
Mar 2017	28	27	2	57
Apr 2017	28	29	2	59
May 2017	27	14	0	41
Jun 2017	38	23	0	61
Jul 2017	22	23	0	45
Aug 2017	12	21	2	35
Sep 2017	18	24	1	43
Oct 2017	21	28	0	49
Nov 2017	19	21	1	41
Dec 2017	8	19	1	28
Jan 2018	13	15	6	34
Feb 2018	5	26	1	32
Mar 2018	16	23	1	40
Apr 2018	14	25	6	45
May 2018	22	15	2	39
Jun 2018	10	23	1	34
Jul 2018	15	15	5	35
Aug 2018	21	31	0	52
Sep 2018	13	36	2	51
Oct 2018	23	37	4	64
Nov 2018	18	29	4	51
Dec 2018	15	12	1	28
Jan 2019	15	28	2	45
Feb 2019	15	12	2	29
Mar 2019	9	19	1	29
Apr 2019	13	19	0	32
May 2019	12	17	2	31
Jun 2019	12	18	0	30
Jul 2019	15	20	0	35
Aug 2019	7	39	5	51
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Nov 2019	9	15	2	26
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Jan 2021	24	12	0	36
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Jul 2021	21	27	1	49
Aug 2021	25	16	1	42
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Oct 2021	24	47	4	75
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Apr 2022	21	13	1	35
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Oct 2022	25	17	2	44
Nov 2022	31	32	0	63
Dec 2022	31	19	0	50
Jan 2023	32	32	1	65
Feb 2023	33	40	3	76
Mar 2023	42	26	0	68
Apr 2023	15	22	0	37
May 2023	43	28	0	71
Jun 2023	50	23	1	74
Jul 2023	51	23	1	75
Aug 2023	51	31	2	84
Sep 2023	52	17	1	70
Oct 2023	59	12	2	73
Nov 2023	43	9	0	52
Dec 2023	54	14	1	69
Jan 2024	65	16	1	82
Feb 2024	49	18	1	68
Mar 2024	50	25	1	76
Apr 2024	56	25	3	84
May 2024	51	27	4	82
Jun 2024	66	27	4	97
Jul 2024	28	28	6	62
Aug 2024	33	18	8	59
Sep 2024	23	14	2	39
Oct 2024	40	17	1	58
Nov 2024	24	13	2	39
Dec 2024	27	22	2	51
Jan 2025	30	24	1	55
Feb 2025	46	23	0	69
Mar 2025	30	20	1	51
Apr 2025	35	22	1	58
May 2025	52	13	1	66
Jun 2025	76	17	3	96
Jul 2025	43	26	2	71
Aug 2025	111	31	5	147
Sep 2025	81	18	2	101
Oct 2025	46	35	0	81
Nov 2025	44	12	5	61

Latest update: 23 Nov 2025

Short summary

We compared the chemistry and yields of SOA generated from OH oxidation of gas-phase precursors in a flow reactor (high OH, short residence time) and environmental chambers (low OH, long residence time). We find that chemical composition of SOA produced in the flow reactor and in chambers is similar. SOA yields measured in the flow reactor are lower than in chambers. Seed particles increase the yield of SOA produced in the flow reactor and may account in part for higher SOA yields in chambers.