Updated ozone absorption cross section will reduce air quality compliance

Sofen, E. D.; Evans, M. J.; Lewis, A. C.

doi:10.5194/acp-15-13627-2015

Articles | Volume 15, issue 23

https://doi.org/10.5194/acp-15-13627-2015

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

https://doi.org/10.5194/acp-15-13627-2015

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

Articles | Volume 15, issue 23

Research article

| Highlight paper

|

10 Dec 2015

Research article | Highlight paper |

| 10 Dec 2015

Updated ozone absorption cross section will reduce air quality compliance

E. D. Sofen, M. J. Evans, and A. C. Lewis

Viewed

Total article views: 6,428 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
4,790	1,437	201	6,428	200	235

HTML: 4,790
PDF: 1,437
XML: 201
Total: 6,428
BibTeX: 200
EndNote: 235

Views and downloads (calculated since 17 Jul 2015)

Month	HTML	PDF	XML	Total
Jul 2015	171	110	6	287
Aug 2015	44	28	3	75
Sep 2015	14	9	20	43
Oct 2015	17	4	0	21
Nov 2015	19	14	5	38
Dec 2015	290	144	16	450
Jan 2016	270	126	6	402
Feb 2016	117	41	7	165
Mar 2016	96	33	2	131
Apr 2016	39	17	2	58
May 2016	23	10	2	35
Jun 2016	21	8	2	31
Jul 2016	14	5	3	22
Aug 2016	18	4	1	23
Sep 2016	20	6	3	29
Oct 2016	13	2	0	15
Nov 2016	14	5	0	19
Dec 2016	9	1	1	11
Jan 2017	19	3	1	23
Feb 2017	22	5	2	29
Mar 2017	47	7	5	59
Apr 2017	47	10	5	62
May 2017	62	12	4	78
Jun 2017	47	5	4	56
Jul 2017	23	2	0	25
Aug 2017	11	5	2	18
Sep 2017	16	7	1	24
Oct 2017	11	9	1	21
Nov 2017	10	5	0	15
Dec 2017	18	7	1	26
Jan 2018	10	4	0	14
Feb 2018	25	3	0	28
Mar 2018	18	7	0	25
Apr 2018	8	6	1	15
May 2018	15	8	2	25
Jun 2018	9	6	0	15
Jul 2018	8	7	0	15
Aug 2018	12	6	1	19
Sep 2018	16	13	1	30
Oct 2018	18	7	3	28
Nov 2018	15	12	0	27
Dec 2018	6	4	1	11
Jan 2019	11	6	3	20
Feb 2019	5	1	0	6
Mar 2019	22	7	0	29
Apr 2019	28	4	0	32
May 2019	36	4	0	40
Jun 2019	22	4	0	26
Jul 2019	30	4	1	35
Aug 2019	31	8	0	39
Sep 2019	23	3	0	26
Oct 2019	42	10	2	54
Nov 2019	29	7	0	36
Dec 2019	33	6	0	39
Jan 2020	23	4	1	28
Feb 2020	29	5	2	36
Mar 2020	44	3	1	48
Apr 2020	51	6	0	57
May 2020	69	5	1	75
Jun 2020	48	6	0	54
Jul 2020	62	10	8	80
Aug 2020	51	6	4	61
Sep 2020	41	5	1	47
Oct 2020	26	7	0	33
Nov 2020	22	5	1	28
Dec 2020	52	4	0	56
Jan 2021	55	6	0	61
Feb 2021	42	1	0	43
Mar 2021	46	6	0	52
Apr 2021	51	5	0	56
May 2021	53	6	1	60
Jun 2021	55	8	0	63
Jul 2021	53	4	1	58
Aug 2021	36	22	0	58
Sep 2021	41	13	0	54
Oct 2021	35	43	0	78
Nov 2021	37	23	2	62
Dec 2021	40	9	1	50
Jan 2022	43	14	3	60
Feb 2022	34	8	3	45
Mar 2022	42	11	3	56
Apr 2022	40	2	1	43
May 2022	34	9	0	43
Jun 2022	36	7	0	43
Jul 2022	40	6	1	47
Aug 2022	48	10	1	59
Sep 2022	29	7	0	36
Oct 2022	41	6	3	50
Nov 2022	45	6	0	51
Dec 2022	48	3	0	51
Jan 2023	37	10	0	47
Feb 2023	44	7	0	51
Mar 2023	50	11	0	61
Apr 2023	42	5	1	48
May 2023	62	8	0	70
Jun 2023	70	13	2	85
Jul 2023	65	1	1	67
Aug 2023	71	10	3	84
Sep 2023	76	4	1	81
Oct 2023	77	11	2	90
Nov 2023	41	11	0	52
Dec 2023	45	14	2	61
Jan 2024	40	10	0	50
Feb 2024	36	4	1	41
Mar 2024	48	19	2	69
Apr 2024	41	9	4	54
May 2024	13	13	0	26
Jun 2024	18	8	1	27
Jul 2024	12	2	3	17
Aug 2024	35	9	0	44
Sep 2024	13	5	0	18
Oct 2024	20	6	1	27
Nov 2024	24	13	2	39
Dec 2024	19	7	4	30
Jan 2025	15	5	3	23
Feb 2025	28	14	1	43
Mar 2025	14	14	2	30
Apr 2025	10	17	0	27
May 2025	24	3	0	27
Jun 2025	36	15	0	51
Jul 2025	20	13	1	34
Aug 2025	27	18	3	48
Sep 2025	36	12	1	49
Oct 2025	17	13	0	30
Nov 2025	8	11	1	20

Cumulative views and downloads (calculated since 17 Jul 2015)

Month	HTML	PDF	XML	Total
Jul 2015	171	110	6	287
Aug 2015	44	28	3	75
Sep 2015	14	9	20	43
Oct 2015	17	4	0	21
Nov 2015	19	14	5	38
Dec 2015	290	144	16	450
Jan 2016	270	126	6	402
Feb 2016	117	41	7	165
Mar 2016	96	33	2	131
Apr 2016	39	17	2	58
May 2016	23	10	2	35
Jun 2016	21	8	2	31
Jul 2016	14	5	3	22
Aug 2016	18	4	1	23
Sep 2016	20	6	3	29
Oct 2016	13	2	0	15
Nov 2016	14	5	0	19
Dec 2016	9	1	1	11
Jan 2017	19	3	1	23
Feb 2017	22	5	2	29
Mar 2017	47	7	5	59
Apr 2017	47	10	5	62
May 2017	62	12	4	78
Jun 2017	47	5	4	56
Jul 2017	23	2	0	25
Aug 2017	11	5	2	18
Sep 2017	16	7	1	24
Oct 2017	11	9	1	21
Nov 2017	10	5	0	15
Dec 2017	18	7	1	26
Jan 2018	10	4	0	14
Feb 2018	25	3	0	28
Mar 2018	18	7	0	25
Apr 2018	8	6	1	15
May 2018	15	8	2	25
Jun 2018	9	6	0	15
Jul 2018	8	7	0	15
Aug 2018	12	6	1	19
Sep 2018	16	13	1	30
Oct 2018	18	7	3	28
Nov 2018	15	12	0	27
Dec 2018	6	4	1	11
Jan 2019	11	6	3	20
Feb 2019	5	1	0	6
Mar 2019	22	7	0	29
Apr 2019	28	4	0	32
May 2019	36	4	0	40
Jun 2019	22	4	0	26
Jul 2019	30	4	1	35
Aug 2019	31	8	0	39
Sep 2019	23	3	0	26
Oct 2019	42	10	2	54
Nov 2019	29	7	0	36
Dec 2019	33	6	0	39
Jan 2020	23	4	1	28
Feb 2020	29	5	2	36
Mar 2020	44	3	1	48
Apr 2020	51	6	0	57
May 2020	69	5	1	75
Jun 2020	48	6	0	54
Jul 2020	62	10	8	80
Aug 2020	51	6	4	61
Sep 2020	41	5	1	47
Oct 2020	26	7	0	33
Nov 2020	22	5	1	28
Dec 2020	52	4	0	56
Jan 2021	55	6	0	61
Feb 2021	42	1	0	43
Mar 2021	46	6	0	52
Apr 2021	51	5	0	56
May 2021	53	6	1	60
Jun 2021	55	8	0	63
Jul 2021	53	4	1	58
Aug 2021	36	22	0	58
Sep 2021	41	13	0	54
Oct 2021	35	43	0	78
Nov 2021	37	23	2	62
Dec 2021	40	9	1	50
Jan 2022	43	14	3	60
Feb 2022	34	8	3	45
Mar 2022	42	11	3	56
Apr 2022	40	2	1	43
May 2022	34	9	0	43
Jun 2022	36	7	0	43
Jul 2022	40	6	1	47
Aug 2022	48	10	1	59
Sep 2022	29	7	0	36
Oct 2022	41	6	3	50
Nov 2022	45	6	0	51
Dec 2022	48	3	0	51
Jan 2023	37	10	0	47
Feb 2023	44	7	0	51
Mar 2023	50	11	0	61
Apr 2023	42	5	1	48
May 2023	62	8	0	70
Jun 2023	70	13	2	85
Jul 2023	65	1	1	67
Aug 2023	71	10	3	84
Sep 2023	76	4	1	81
Oct 2023	77	11	2	90
Nov 2023	41	11	0	52
Dec 2023	45	14	2	61
Jan 2024	40	10	0	50
Feb 2024	36	4	1	41
Mar 2024	48	19	2	69
Apr 2024	41	9	4	54
May 2024	13	13	0	26
Jun 2024	18	8	1	27
Jul 2024	12	2	3	17
Aug 2024	35	9	0	44
Sep 2024	13	5	0	18
Oct 2024	20	6	1	27
Nov 2024	24	13	2	39
Dec 2024	19	7	4	30
Jan 2025	15	5	3	23
Feb 2025	28	14	1	43
Mar 2025	14	14	2	30
Apr 2025	10	17	0	27
May 2025	24	3	0	27
Jun 2025	36	15	0	51
Jul 2025	20	13	1	34
Aug 2025	27	18	3	48
Sep 2025	36	12	1	49
Oct 2025	17	13	0	30
Nov 2025	8	11	1	20

Latest update: 14 Nov 2025

Short summary

As an air pollutant, O3 is monitored photometrically to assess compliance with air quality legislation. A recent study found a 1.8% reduction in its absorption cross section, which would lead to an equivalent increase in observed O3 concentrations. We estimate this would increase the number of sites out of compliance with air quality regulations in the EU and US by 20%. We draw attention to how small changes in gas metrology impacts attainment and compliance with legal air quality standards.