Chemical characterization of organic particulate matter from on-road traffic in São Paulo, Brazil

Oyama, Beatriz Sayuri; Andrade, Maria de Fátima; Herckes, Pierre; Dusek, Ulrike; Röckmann, Thomas; Holzinger, Rupert

doi:10.5194/acp-16-14397-2016

Articles | Volume 16, issue 22

https://doi.org/10.5194/acp-16-14397-2016

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

https://doi.org/10.5194/acp-16-14397-2016

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

Articles | Volume 16, issue 22

Research article

|

18 Nov 2016

Research article |

| 18 Nov 2016

Chemical characterization of organic particulate matter from on-road traffic in São Paulo, Brazil

Beatriz Sayuri Oyama, Maria de Fátima Andrade, Pierre Herckes, Ulrike Dusek, Thomas Röckmann, and Rupert Holzinger

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Oct 2016	14	8	2	24
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Dec 2016	17	14	4	35
Jan 2017	34	23	13	70
Feb 2017	16	13	5	34
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Apr 2017	38	25	11	74
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May 2025	24	6	2	32
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Nov 2025	27	13	5	45
Dec 2025	2	3	0	5

Cumulative views and downloads (calculated since 01 Dec 2015)

Month	HTML	PDF	XML	Total
Dec 2015	94	117	7	218
Jan 2016	30	12	4	46
Feb 2016	25	6	3	34
Mar 2016	19	6	1	26
Apr 2016	6	3	0	9
May 2016	9	9	1	19
Jun 2016	6	6	0	12
Jul 2016	8	2	1	11
Aug 2016	9	5	0	14
Sep 2016	9	2	1	12
Oct 2016	14	8	2	24
Nov 2016	72	24	2	98
Dec 2016	17	14	4	35
Jan 2017	34	23	13	70
Feb 2017	16	13	5	34
Mar 2017	38	17	14	69
Apr 2017	38	25	11	74
May 2017	37	22	11	70
Jun 2017	27	6	10	43
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Aug 2017	12	13	7	32
Sep 2017	13	8	12	33
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Oct 2023	42	11	1	54
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Jul 2025	31	14	2	47
Aug 2025	46	20	0	66
Sep 2025	39	17	3	59
Oct 2025	18	26	0	44
Nov 2025	27	13	5	45
Dec 2025	2	3	0	5

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Short summary

Vehicular emissions have a strong impact on air pollution in big cities; hence, the study was performed in São Paulo city, where light- (LDVs) and heavy-duty vehicles (HDVs) run on different fuels. We find that organic aerosol emission from LDVs and HDVs is a complex process involving oxidation of fuel constituents, NO_x chemistry, and condensation of unburned fuel hydrocarbons on new or existing particles. The obtained emission patterns can be used to study processing of young aerosol in Brazil.