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Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car

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Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car. / Karjalainen, P.; Timonen, H.; Saukko, E.; Kuuluvainen, H.; Saarikoski, S.; Aakko-Saksa, P.; Murtonen, T.; Dal Maso, M.; Ahlberg, E.; Svenningsson, B.; Brune, W. H.; Hillamo, R.; Keskinen, J.; Rönkkö, T.

In: Atmospheric Chemistry and Physics Discussions, Vol. 15, No. 22, 25.11.2015, p. 33253-33282.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

Karjalainen, P, Timonen, H, Saukko, E, Kuuluvainen, H, Saarikoski, S, Aakko-Saksa, P, Murtonen, T, Dal Maso, M, Ahlberg, E, Svenningsson, B, Brune, WH, Hillamo, R, Keskinen, J & Rönkkö, T 2015, 'Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car', Atmospheric Chemistry and Physics Discussions, vol. 15, no. 22, pp. 33253-33282. https://doi.org/10.5194/acpd-15-33253-2015

APA

Karjalainen, P., Timonen, H., Saukko, E., Kuuluvainen, H., Saarikoski, S., Aakko-Saksa, P., ... Rönkkö, T. (2015). Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car. Atmospheric Chemistry and Physics Discussions, 15(22), 33253-33282. https://doi.org/10.5194/acpd-15-33253-2015

Vancouver

Karjalainen P, Timonen H, Saukko E, Kuuluvainen H, Saarikoski S, Aakko-Saksa P et al. Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car. Atmospheric Chemistry and Physics Discussions. 2015 Nov 25;15(22):33253-33282. https://doi.org/10.5194/acpd-15-33253-2015

Author

Karjalainen, P. ; Timonen, H. ; Saukko, E. ; Kuuluvainen, H. ; Saarikoski, S. ; Aakko-Saksa, P. ; Murtonen, T. ; Dal Maso, M. ; Ahlberg, E. ; Svenningsson, B. ; Brune, W. H. ; Hillamo, R. ; Keskinen, J. ; Rönkkö, T. / Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car. In: Atmospheric Chemistry and Physics Discussions. 2015 ; Vol. 15, No. 22. pp. 33253-33282.

Bibtex - Download

@article{7bd2d6cd53bf42baa1bdd8928b524dc2,
title = "Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car",
abstract = "Changes in traffic systems and vehicle emission reduction technologies significantly affect traffic-related emissions in urban areas. In many densely populated areas the amount of traffic is increasing, keeping the emission level high or even increasing. To understand the health effects of traffic related emissions, both primary and secondary particles that are formed in the atmosphere from gaseous exhaust emissions need to be characterized. In this study we used a comprehensive set of measurements to characterize both primary and secondary particulate emissions of a modern gasoline passenger car. Our aerosol particle study covers the whole process chain in emission formation, from the engine to the atmosphere, and takes into account also differences in driving patterns. We observed that in mass terms, the amount of secondary particles was 13 times higher than the amount of primary particles. The formation, composition, number, and mass of secondary particles was significantly affected by driving patterns and engine conditions. The highest gaseous and particulate emissions were observed at the beginning of the test cycle when the performance of the engine and the catalyst was below optimal. The key parameter for secondary particle formation was the amount of gaseous hydrocarbons in primary emissions; however, also the primary particle population had an influence. Thus, in order to enhance human health and wellbeing in urban areas, our study strongly indicates that in future legislation, special attention should be directed into the reduction of gaseous hydrocarbons.",
author = "P. Karjalainen and H. Timonen and E. Saukko and H. Kuuluvainen and S. Saarikoski and P. Aakko-Saksa and T. Murtonen and {Dal Maso}, M. and E. Ahlberg and B. Svenningsson and Brune, {W. H.} and R. Hillamo and J. Keskinen and T. R{\"o}nkk{\"o}",
year = "2015",
month = "11",
day = "25",
doi = "10.5194/acpd-15-33253-2015",
language = "English",
volume = "15",
pages = "33253--33282",
journal = "Atmospheric Chemistry and Physics Discussions",
issn = "1680-7367",
publisher = "European Geosciences Union",
number = "22",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Time-resolved characterization of primary and secondary particle emissions of a modern gasoline passenger car

AU - Karjalainen, P.

AU - Timonen, H.

AU - Saukko, E.

AU - Kuuluvainen, H.

AU - Saarikoski, S.

AU - Aakko-Saksa, P.

AU - Murtonen, T.

AU - Dal Maso, M.

AU - Ahlberg, E.

AU - Svenningsson, B.

AU - Brune, W. H.

AU - Hillamo, R.

AU - Keskinen, J.

AU - Rönkkö, T.

PY - 2015/11/25

Y1 - 2015/11/25

N2 - Changes in traffic systems and vehicle emission reduction technologies significantly affect traffic-related emissions in urban areas. In many densely populated areas the amount of traffic is increasing, keeping the emission level high or even increasing. To understand the health effects of traffic related emissions, both primary and secondary particles that are formed in the atmosphere from gaseous exhaust emissions need to be characterized. In this study we used a comprehensive set of measurements to characterize both primary and secondary particulate emissions of a modern gasoline passenger car. Our aerosol particle study covers the whole process chain in emission formation, from the engine to the atmosphere, and takes into account also differences in driving patterns. We observed that in mass terms, the amount of secondary particles was 13 times higher than the amount of primary particles. The formation, composition, number, and mass of secondary particles was significantly affected by driving patterns and engine conditions. The highest gaseous and particulate emissions were observed at the beginning of the test cycle when the performance of the engine and the catalyst was below optimal. The key parameter for secondary particle formation was the amount of gaseous hydrocarbons in primary emissions; however, also the primary particle population had an influence. Thus, in order to enhance human health and wellbeing in urban areas, our study strongly indicates that in future legislation, special attention should be directed into the reduction of gaseous hydrocarbons.

AB - Changes in traffic systems and vehicle emission reduction technologies significantly affect traffic-related emissions in urban areas. In many densely populated areas the amount of traffic is increasing, keeping the emission level high or even increasing. To understand the health effects of traffic related emissions, both primary and secondary particles that are formed in the atmosphere from gaseous exhaust emissions need to be characterized. In this study we used a comprehensive set of measurements to characterize both primary and secondary particulate emissions of a modern gasoline passenger car. Our aerosol particle study covers the whole process chain in emission formation, from the engine to the atmosphere, and takes into account also differences in driving patterns. We observed that in mass terms, the amount of secondary particles was 13 times higher than the amount of primary particles. The formation, composition, number, and mass of secondary particles was significantly affected by driving patterns and engine conditions. The highest gaseous and particulate emissions were observed at the beginning of the test cycle when the performance of the engine and the catalyst was below optimal. The key parameter for secondary particle formation was the amount of gaseous hydrocarbons in primary emissions; however, also the primary particle population had an influence. Thus, in order to enhance human health and wellbeing in urban areas, our study strongly indicates that in future legislation, special attention should be directed into the reduction of gaseous hydrocarbons.

UR - http://www.atmos-chem-phys-discuss.net/15/33253/2015/

U2 - 10.5194/acpd-15-33253-2015

DO - 10.5194/acpd-15-33253-2015

M3 - Article

VL - 15

SP - 33253

EP - 33282

JO - Atmospheric Chemistry and Physics Discussions

JF - Atmospheric Chemistry and Physics Discussions

SN - 1680-7367

IS - 22

ER -