Variability of air ion concentrations in urban Paris

Dos Santos, V. N.; Herrmann, E.; Manninen, H. E.; Hussein, T.; Hakala, J.; Nieminen, T.; Aalto, P. P.; Merkel, M.; Wiedensohler, A.; Kulmala, M.; Petäjä, T.; Hämeri, K.

doi:10.5194/acp-15-13717-2015

Articles | Volume 15, issue 23

https://doi.org/10.5194/acp-15-13717-2015

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

Special issue:

Megapoli-Paris 2009/2010 campaign

https://doi.org/10.5194/acp-15-13717-2015

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

Articles | Volume 15, issue 23

Research article

|

14 Dec 2015

Research article |

| 14 Dec 2015

Variability of air ion concentrations in urban Paris

V. N. Dos Santos, E. Herrmann, H. E. Manninen, T. Hussein, J. Hakala, T. Nieminen, P. P. Aalto, M. Merkel, A. Wiedensohler, M. Kulmala, T. Petäjä, and K. Hämeri

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Views and downloads (calculated since 13 Apr 2015)

Month	HTML	PDF	XML	Total
Apr 2015	86	69	14	169
May 2015	36	25	13	74
Jun 2015	19	10	2	31
Jul 2015	18	14	3	35
Aug 2015	7	1	6	14
Sep 2015	6	7	0	13
Oct 2015	13	20	0	33
Nov 2015	15	42	6	63
Dec 2015	105	142	9	256
Jan 2016	65	58	4	127
Feb 2016	35	22	2	59
Mar 2016	24	12	0	36
Apr 2016	7	7	0	14
May 2016	15	12	0	27
Jun 2016	4	2	2	8
Jul 2016	11	7	2	20
Aug 2016	7	4	0	11
Sep 2016	12	4	1	17
Oct 2016	10	3	0	13
Nov 2016	8	15	0	23
Dec 2016	6	16	0	22
Jan 2017	14	26	0	40
Feb 2017	10	25	1	36
Mar 2017	19	36	1	56
Apr 2017	18	38	0	56
May 2017	25	15	1	41
Jun 2017	21	3	1	25
Jul 2017	18	7	1	26
Aug 2017	5	8	0	13
Sep 2017	8	11	2	21
Oct 2017	8	5	0	13
Nov 2017	8	4	0	12
Dec 2017	8	5	0	13
Jan 2018	7	7	0	14
Feb 2018	5	6	0	11
Mar 2018	9	9	1	19
Apr 2018	7	4	0	11
May 2018	12	9	2	23
Jun 2018	3	6	0	9
Jul 2018	7	9	0	16
Aug 2018	15	9	0	24
Sep 2018	10	11	0	21
Oct 2018	14	13	3	30
Nov 2018	13	12	2	27
Dec 2018	9	5	1	15
Jan 2019	5	9	1	15
Feb 2019	10	3	0	13
Mar 2019	4	7	0	11
Apr 2019	6	8	0	14
May 2019	9	6	1	16
Jun 2019	9	8	0	17
Jul 2019	10	8	0	18
Aug 2019	4	7	0	11
Sep 2019	6	3	0	9
Oct 2019	8	8	2	18
Nov 2019	5	3	1	9
Dec 2019	6	2	0	8
Jan 2020	7	3	0	10
Feb 2020	8	3	1	12
Mar 2020	3	3	0	6
Apr 2020	4	2	0	6
May 2020	7	5	0	12
Jun 2020	21	3	0	24
Jul 2020	15	6	4	25
Aug 2020	8	5	2	15
Sep 2020	10	8	1	19
Oct 2020	7	2	0	9
Nov 2020	15	10	2	27
Dec 2020	9	4	2	15
Jan 2021	15	6	0	21
Feb 2021	10	3	0	13
Mar 2021	11	4	0	15
Apr 2021	8	7	0	15
May 2021	9	8	1	18
Jun 2021	5	6	0	11
Jul 2021	5	7	0	12
Aug 2021	6	5	0	11
Sep 2021	5	9	0	14
Oct 2021	9	36	0	45
Nov 2021	12	17	0	29
Dec 2021	10	6	0	16
Jan 2022	6	6	0	12
Feb 2022	8	2	1	11
Mar 2022	15	3	0	18
Apr 2022	7	3	1	11
May 2022	5	4	0	9
Jun 2022	6	3	0	9
Jul 2022	4	0	4
Aug 2022	10	7	0	17
Sep 2022	7	7	0	14
Oct 2022	7	5	0	12
Nov 2022	30	4	0	34
Dec 2022	16	0	16
Jan 2023	11	16	1	28
Feb 2023	13	7	0	20
Mar 2023	8	4	0	12
Apr 2023	8	3	0	11
May 2023	31	10	0	41
Jun 2023	35	3	1	39
Jul 2023	36	7	1	44
Aug 2023	40	7	3	50
Sep 2023	40	8	1	49
Oct 2023	39	7	2	48
Nov 2023	25	0	25
Dec 2023	36	6	0	42
Jan 2024	41	6	1	48
Feb 2024	35	6	0	41
Mar 2024	43	15	2	60
Apr 2024	39	5	6	50
May 2024	14	9	1	24
Jun 2024	16	5	1	22
Jul 2024	16	15	5	36
Aug 2024	30	6	0	36
Sep 2024	14	7	0	21
Oct 2024	19	3	0	22
Nov 2024	7	4	2	13
Dec 2024	9	2	0	11
Jan 2025	18	10	1	29
Feb 2025	25	6	5	36
Mar 2025	16	4	1	21
Apr 2025	22	17	2	41
May 2025	23	10	0	33
Jun 2025	45	6	4	55
Jul 2025	34	14	1	49
Aug 2025	81	20	0	101
Sep 2025	72	11	4	87
Oct 2025	17	15	0	32
Nov 2025	25	13	0	38

Cumulative views and downloads (calculated since 13 Apr 2015)

Month	HTML	PDF	XML	Total
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May 2015	36	25	13	74
Jun 2015	19	10	2	31
Jul 2015	18	14	3	35
Aug 2015	7	1	6	14
Sep 2015	6	7	0	13
Oct 2015	13	20	0	33
Nov 2015	15	42	6	63
Dec 2015	105	142	9	256
Jan 2016	65	58	4	127
Feb 2016	35	22	2	59
Mar 2016	24	12	0	36
Apr 2016	7	7	0	14
May 2016	15	12	0	27
Jun 2016	4	2	2	8
Jul 2016	11	7	2	20
Aug 2016	7	4	0	11
Sep 2016	12	4	1	17
Oct 2016	10	3	0	13
Nov 2016	8	15	0	23
Dec 2016	6	16	0	22
Jan 2017	14	26	0	40
Feb 2017	10	25	1	36
Mar 2017	19	36	1	56
Apr 2017	18	38	0	56
May 2017	25	15	1	41
Jun 2017	21	3	1	25
Jul 2017	18	7	1	26
Aug 2017	5	8	0	13
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Oct 2017	8	5	0	13
Nov 2017	8	4	0	12
Dec 2017	8	5	0	13
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Apr 2018	7	4	0	11
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May 2023	31	10	0	41
Jun 2023	35	3	1	39
Jul 2023	36	7	1	44
Aug 2023	40	7	3	50
Sep 2023	40	8	1	49
Oct 2023	39	7	2	48
Nov 2023	25	0	25
Dec 2023	36	6	0	42
Jan 2024	41	6	1	48
Feb 2024	35	6	0	41
Mar 2024	43	15	2	60
Apr 2024	39	5	6	50
May 2024	14	9	1	24
Jun 2024	16	5	1	22
Jul 2024	16	15	5	36
Aug 2024	30	6	0	36
Sep 2024	14	7	0	21
Oct 2024	19	3	0	22
Nov 2024	7	4	2	13
Dec 2024	9	2	0	11
Jan 2025	18	10	1	29
Feb 2025	25	6	5	36
Mar 2025	16	4	1	21
Apr 2025	22	17	2	41
May 2025	23	10	0	33
Jun 2025	45	6	4	55
Jul 2025	34	14	1	49
Aug 2025	81	20	0	101
Sep 2025	72	11	4	87
Oct 2025	17	15	0	32
Nov 2025	25	13	0	38

Latest update: 17 Nov 2025

Short summary

Atmospheric charged particles, i.e. air ions, contribute to secondary aerosol formation and have an effect on global climate as potential cloud condensation nuclei. We aimed to evaluate air ion concentrations and characteristics during new particle formation (NPF) events in the megacity Paris, France. We analyzed frequency and seasonal variations of NPF events, diurnal and seasonal cycles of ions, and aerosol particles.