Impact of updated traffic emissions on HONO mixing ratios simulated for urban site in Houston, Texas

Czader, B. H.; Choi, Y.; Li, X.; Alvarez, S.; Lefer, B.

doi:10.5194/acp-15-1253-2015

Articles | Volume 15, issue 3

https://doi.org/10.5194/acp-15-1253-2015

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

https://doi.org/10.5194/acp-15-1253-2015

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

Articles | Volume 15, issue 3

Research article

|

05 Feb 2015

Research article |

| 05 Feb 2015

Impact of updated traffic emissions on HONO mixing ratios simulated for urban site in Houston, Texas

B. H. Czader, Y. Choi, X. Li, S. Alvarez, and B. Lefer

Viewed

Total article views: 3,760 (including HTML, PDF, and XML)

HTML	PDF	XML	Total	BibTeX	EndNote
2,214	1,431	115	3,760	178	178

HTML: 2,214
PDF: 1,431
XML: 115
Total: 3,760
BibTeX: 178
EndNote: 178

Views and downloads (calculated since 20 Aug 2014)

Month	HTML	PDF	XML	Total
Aug 2014	106	71	2	179
Sep 2014	31	27	5	63
Oct 2014	26	22	0	48
Nov 2014	11	13	0	24
Dec 2014	13	10	1	24
Jan 2015	6	8	0	14
Feb 2015	117	72	9	198
Mar 2015	27	13	5	45
Apr 2015	28	16	1	45
May 2015	16	22	3	41
Jun 2015	36	28	5	69
Jul 2015	31	16	1	48
Aug 2015	11	11	2	24
Sep 2015	7	13	0	20
Oct 2015	21	7	2	30
Nov 2015	31	18	3	52
Dec 2015	6	12	0	18
Jan 2016	31	32	3	66
Feb 2016	33	48	2	83
Mar 2016	17	41	0	58
Apr 2016	3	28	0	31
May 2016	10	15	1	26
Jun 2016	5	3	0	8
Jul 2016	9	6	3	18
Aug 2016	9	9	0	18
Sep 2016	10	6	0	16
Oct 2016	7	1	0	8
Nov 2016	7	14	0	21
Dec 2016	1	13	0	14
Jan 2017	14	15	0	29
Feb 2017	13	5	1	19
Mar 2017	20	10	2	32
Apr 2017	29	9	1	39
May 2017	24	5	2	31
Jun 2017	24	6	0	30
Jul 2017	25	5	1	31
Aug 2017	8	5	0	13
Sep 2017	10	7	1	18
Oct 2017	6	9	1	16
Nov 2017	10	7	0	17
Dec 2017	6	7	0	13
Jan 2018	5	7	0	12
Feb 2018	6	4	0	10
Mar 2018	11	10	0	21
Apr 2018	5	7	0	12
May 2018	14	8	0	22
Jun 2018	8	13	0	21
Jul 2018	8	11	0	19
Aug 2018	7	3	0	10
Sep 2018	9	11	0	20
Oct 2018	10	15	1	26
Nov 2018	11	8	0	19
Dec 2018	7	3	1	11
Jan 2019	10	2	1	13
Feb 2019	6	7	0	13
Mar 2019	9	6	0	15
Apr 2019	6	5	0	11
May 2019	6	5	0	11
Jun 2019	4	3	0	7
Jul 2019	9	8	0	17
Aug 2019	1	2	0	3
Sep 2019	2	6	0	8
Oct 2019	6	1	0	7
Nov 2019	3	5	0	8
Dec 2019	4	4	0	8
Jan 2020	10	8	0	18
Feb 2020	6	3	0	9
Mar 2020	1	2	0	3
Apr 2020	3	10	0	13
May 2020	4	4	0	8
Jun 2020	20	5	0	25
Jul 2020	19	11	6	36
Aug 2020	7	4	2	13
Sep 2020	7	4	0	11
Oct 2020	7	2	1	10
Nov 2020	4	4	1	9
Dec 2020	6	8	0	14
Jan 2021	16	3	0	19
Feb 2021	10	8	0	18
Mar 2021	6	5	0	11
Apr 2021	8	10	0	18
May 2021	9	7	1	17
Jun 2021	6	11	0	17
Jul 2021	7	5	4	16
Aug 2021	8	6	0	14
Sep 2021	14	10	0	24
Oct 2021	5	29	0	34
Nov 2021	13	25	1	39
Dec 2021	9	9	0	18
Jan 2022	6	9	0	15
Feb 2022	3	3	1	7
Mar 2022	9	5	0	14
Apr 2022	9	7	2	18
May 2022	8	2	0	10
Jun 2022	4	3	0	7
Jul 2022	4	3	0	7
Aug 2022	7	5	0	12
Sep 2022	8	5	0	13
Oct 2022	10	6	1	17
Nov 2022	20	8	0	28
Dec 2022	11	8	0	19
Jan 2023	7	11	0	18
Feb 2023	13	3	0	16
Mar 2023	17	10	0	27
Apr 2023	9	9	0	18
May 2023	28	8	0	36
Jun 2023	36	3	1	40
Jul 2023	40	4	0	44
Aug 2023	40	7	2	49
Sep 2023	40	2	0	42
Oct 2023	42	7	2	51
Nov 2023	21	0	21
Dec 2023	64	9	3	76
Jan 2024	41	4	1	46
Feb 2024	33	8	0	41
Mar 2024	39	13	1	53
Apr 2024	47	10	4	61
May 2024	18	11	0	29
Jun 2024	30	10	1	41
Jul 2024	14	10	1	25
Aug 2024	9	7	0	16
Sep 2024	9	4	0	13
Oct 2024	17	3	0	20
Nov 2024	12	7	2	21
Dec 2024	13	4	0	17
Jan 2025	17	10	0	27
Feb 2025	21	7	7	35
Mar 2025	10	16	3	29
Apr 2025	32	9	1	42
May 2025	21	11	0	32
Jun 2025	39	10	1	50
Jul 2025	15	26	0	41
Aug 2025	23	13	0	36
Sep 2025	25	17	2	44
Oct 2025	21	20	0	41
Nov 2025	25	32	3	60

Cumulative views and downloads (calculated since 20 Aug 2014)

Month	HTML	PDF	XML	Total
Aug 2014	106	71	2	179
Sep 2014	31	27	5	63
Oct 2014	26	22	0	48
Nov 2014	11	13	0	24
Dec 2014	13	10	1	24
Jan 2015	6	8	0	14
Feb 2015	117	72	9	198
Mar 2015	27	13	5	45
Apr 2015	28	16	1	45
May 2015	16	22	3	41
Jun 2015	36	28	5	69
Jul 2015	31	16	1	48
Aug 2015	11	11	2	24
Sep 2015	7	13	0	20
Oct 2015	21	7	2	30
Nov 2015	31	18	3	52
Dec 2015	6	12	0	18
Jan 2016	31	32	3	66
Feb 2016	33	48	2	83
Mar 2016	17	41	0	58
Apr 2016	3	28	0	31
May 2016	10	15	1	26
Jun 2016	5	3	0	8
Jul 2016	9	6	3	18
Aug 2016	9	9	0	18
Sep 2016	10	6	0	16
Oct 2016	7	1	0	8
Nov 2016	7	14	0	21
Dec 2016	1	13	0	14
Jan 2017	14	15	0	29
Feb 2017	13	5	1	19
Mar 2017	20	10	2	32
Apr 2017	29	9	1	39
May 2017	24	5	2	31
Jun 2017	24	6	0	30
Jul 2017	25	5	1	31
Aug 2017	8	5	0	13
Sep 2017	10	7	1	18
Oct 2017	6	9	1	16
Nov 2017	10	7	0	17
Dec 2017	6	7	0	13
Jan 2018	5	7	0	12
Feb 2018	6	4	0	10
Mar 2018	11	10	0	21
Apr 2018	5	7	0	12
May 2018	14	8	0	22
Jun 2018	8	13	0	21
Jul 2018	8	11	0	19
Aug 2018	7	3	0	10
Sep 2018	9	11	0	20
Oct 2018	10	15	1	26
Nov 2018	11	8	0	19
Dec 2018	7	3	1	11
Jan 2019	10	2	1	13
Feb 2019	6	7	0	13
Mar 2019	9	6	0	15
Apr 2019	6	5	0	11
May 2019	6	5	0	11
Jun 2019	4	3	0	7
Jul 2019	9	8	0	17
Aug 2019	1	2	0	3
Sep 2019	2	6	0	8
Oct 2019	6	1	0	7
Nov 2019	3	5	0	8
Dec 2019	4	4	0	8
Jan 2020	10	8	0	18
Feb 2020	6	3	0	9
Mar 2020	1	2	0	3
Apr 2020	3	10	0	13
May 2020	4	4	0	8
Jun 2020	20	5	0	25
Jul 2020	19	11	6	36
Aug 2020	7	4	2	13
Sep 2020	7	4	0	11
Oct 2020	7	2	1	10
Nov 2020	4	4	1	9
Dec 2020	6	8	0	14
Jan 2021	16	3	0	19
Feb 2021	10	8	0	18
Mar 2021	6	5	0	11
Apr 2021	8	10	0	18
May 2021	9	7	1	17
Jun 2021	6	11	0	17
Jul 2021	7	5	4	16
Aug 2021	8	6	0	14
Sep 2021	14	10	0	24
Oct 2021	5	29	0	34
Nov 2021	13	25	1	39
Dec 2021	9	9	0	18
Jan 2022	6	9	0	15
Feb 2022	3	3	1	7
Mar 2022	9	5	0	14
Apr 2022	9	7	2	18
May 2022	8	2	0	10
Jun 2022	4	3	0	7
Jul 2022	4	3	0	7
Aug 2022	7	5	0	12
Sep 2022	8	5	0	13
Oct 2022	10	6	1	17
Nov 2022	20	8	0	28
Dec 2022	11	8	0	19
Jan 2023	7	11	0	18
Feb 2023	13	3	0	16
Mar 2023	17	10	0	27
Apr 2023	9	9	0	18
May 2023	28	8	0	36
Jun 2023	36	3	1	40
Jul 2023	40	4	0	44
Aug 2023	40	7	2	49
Sep 2023	40	2	0	42
Oct 2023	42	7	2	51
Nov 2023	21	0	21
Dec 2023	64	9	3	76
Jan 2024	41	4	1	46
Feb 2024	33	8	0	41
Mar 2024	39	13	1	53
Apr 2024	47	10	4	61
May 2024	18	11	0	29
Jun 2024	30	10	1	41
Jul 2024	14	10	1	25
Aug 2024	9	7	0	16
Sep 2024	9	4	0	13
Oct 2024	17	3	0	20
Nov 2024	12	7	2	21
Dec 2024	13	4	0	17
Jan 2025	17	10	0	27
Feb 2025	21	7	7	35
Mar 2025	10	16	3	29
Apr 2025	32	9	1	42
May 2025	21	11	0	32
Jun 2025	39	10	1	50
Jul 2025	15	26	0	41
Aug 2025	23	13	0	36
Sep 2025	25	17	2	44
Oct 2025	21	20	0	41
Nov 2025	25	32	3	60

Latest update: 25 Nov 2025

Short summary

Model simulations were performed with increased HONO emissions from mobile sources that reflect recent measurements at high-traffic urban sites. These higher emissions resulted in increased morning concentrations of HONO and OH. O3 concentrations were only marginally altered. Comparison with observed data shows that HONO morning peak concentrations are better predicted by the model when the higher emissions are utilized in the simulation.