Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates

James Brean; Alex Rowell; David C.S. Beddows; Kay Weinhold; Peter Mettke; Maik Merkel; Thomas Tuch; Matti Rissanen; Miikka Dal Maso; Avinash Kumar; Shawon Barua; Siddharth Iyer; Alexandra Karppinen; Alfred Wiedensohler; Zongbo Shi; Roy M. Harrison

doi:10.1021/acs.est.3c10526

Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates

James Brean
, Alex Rowell
, David C.S. Beddows
, Kay Weinhold
, Peter Mettke
, Maik Merkel
, Thomas Tuch
, Matti Rissanen
, Miikka Dal Maso
, Avinash Kumar
, Shawon Barua
, Siddharth Iyer
, Alexandra Karppinen
, Alfred Wiedensohler
, Zongbo Shi
, Roy M. Harrison^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Artikkeli › Tieteellinen › vertaisarvioitu

10 Sitaatiot (Scopus)

47 Lataukset (Pure)

Abstrakti

New particle formation (NPF) is a major source of atmospheric aerosol particles, including cloud condensation nuclei (CCN), by number globally. Previous research has highlighted that NPF is less frequent but more intense at roadsides compared to urban background. Here, we closely examine NPF at both background and roadside sites in urban Central Europe. We show that the concentration of oxygenated organic molecules (OOMs) is greater at the roadside, and the condensation of OOMs along with sulfuric acid onto new particles is sufficient to explain the growth at both sites. We identify a hitherto unreported traffic-related OOM source contributing 29% and 16% to total OOMs at the roadside and background, respectively. Critically, this hitherto undiscovered OOM source is an essential component of urban NPF. Without their contribution to growth rates and the subsequent enhancements to particle survival, the number of >50 nm particles produced by NPF would be reduced by a factor of 21 at the roadside site. Reductions to hydrocarbon emissions from road traffic may thereby reduce particle numbers and CCN counts.

Alkuperäiskieli	Englanti
Sivut	10664–10674
Sivumäärä	11
Julkaisu	Environmental Science and Technology
Vuosikerta	58
Numero	24
DOI - pysyväislinkit	https://doi.org/10.1021/acs.est.3c10526
Tila	Julkaistu - 18 kesäk. 2024
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Rahoitus

This project was funded by the UK Natural Environment Research Council (grant NE/V001523/1 NPF-Urban). This project has received funding from the European Research Council under the European Union’s Horizon 2020 research and innovation program (grant no. 101002728, ERC Consolidator Grant Project ADAPT). Support from the Research Council of Finland (353836 and 346373) and its Flagship program (decision nos. 337551, 357903) and the Doctoral school of the Faculty of Engineering and Natural Sciences of Tampere University are gratefully acknowledged.

Rahoittajat	Rahoittajan numero
Tampereen yliopisto
European Research Council
Natural Environment Research Council United Kingdom (NERC)	NE/V001523/1 NPF-Urban
Strategic Research Council at the Research Council of Finland	353836, 337551, 346373, 357903
Horizon 2020 Framework Programme	101002728

Julkaisufoorumi-taso

Jufo-taso 2

!!ASJC Scopus subject areas

Yleinen kemia
Environmental Chemistry

Pääsy asiakirjaan

10.1021/acs.est.3c10526Lisenssi: CC BY

brean-et-al-2024-road-traffic-emissions-lead-to-much-enhanced-new-particle-formation-through-increased-growth-ratesFinal published version, 2,34 MBLisenssi: CC BY

https://urn.fi/URN:NBN:fi:tuni-202407317848Lisenssi: CC BY

Siteeraa tätä

Brean, J., Rowell, A., Beddows, D. C. S., Weinhold, K., Mettke, P., Merkel, M., Tuch, T., Rissanen, M., Dal Maso, M., Kumar, A., Barua, S., Iyer, S., Karppinen, A., Wiedensohler, A., Shi, Z., & Harrison, R. M. (2024). Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates. Environmental Science and Technology, 58(24), 10664–10674. https://doi.org/10.1021/acs.est.3c10526

@article{7c279cf522e0444bab9fce2de3a7c357,

title = "Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates",

abstract = "New particle formation (NPF) is a major source of atmospheric aerosol particles, including cloud condensation nuclei (CCN), by number globally. Previous research has highlighted that NPF is less frequent but more intense at roadsides compared to urban background. Here, we closely examine NPF at both background and roadside sites in urban Central Europe. We show that the concentration of oxygenated organic molecules (OOMs) is greater at the roadside, and the condensation of OOMs along with sulfuric acid onto new particles is sufficient to explain the growth at both sites. We identify a hitherto unreported traffic-related OOM source contributing 29\% and 16\% to total OOMs at the roadside and background, respectively. Critically, this hitherto undiscovered OOM source is an essential component of urban NPF. Without their contribution to growth rates and the subsequent enhancements to particle survival, the number of >50 nm particles produced by NPF would be reduced by a factor of 21 at the roadside site. Reductions to hydrocarbon emissions from road traffic may thereby reduce particle numbers and CCN counts.",

keywords = "aerosol, NPF, nucleation, pollution, traffic",

author = "James Brean and Alex Rowell and Beddows, \{David C.S.\} and Kay Weinhold and Peter Mettke and Maik Merkel and Thomas Tuch and Matti Rissanen and \{Dal Maso\}, Miikka and Avinash Kumar and Shawon Barua and Siddharth Iyer and Alexandra Karppinen and Alfred Wiedensohler and Zongbo Shi and Harrison, \{Roy M.\}",

note = "Publisher Copyright: {\textcopyright} 2024 The Authors. Published by American Chemical Society.",

year = "2024",

month = jun,

day = "18",

doi = "10.1021/acs.est.3c10526",

language = "English",

volume = "58",

pages = "10664–10674",

journal = "Environmental Science and Technology",

issn = "1520-5851",

publisher = "American Chemical Society",

number = "24",

}

Brean, J, Rowell, A, Beddows, DCS, Weinhold, K, Mettke, P, Merkel, M, Tuch, T, Rissanen, M , Dal Maso, M , Kumar, A , Barua, S , Iyer, S, Karppinen, A, Wiedensohler, A, Shi, Z & Harrison, RM 2024, 'Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates', Environmental Science and Technology, Vuosikerta 58, Nro 24, Sivut 10664–10674. https://doi.org/10.1021/acs.est.3c10526

TY - JOUR

T1 - Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates

AU - Brean, James

AU - Rowell, Alex

AU - Beddows, David C.S.

AU - Weinhold, Kay

AU - Mettke, Peter

AU - Merkel, Maik

AU - Tuch, Thomas

AU - Rissanen, Matti

AU - Dal Maso, Miikka

AU - Kumar, Avinash

AU - Barua, Shawon

AU - Iyer, Siddharth

AU - Karppinen, Alexandra

AU - Wiedensohler, Alfred

AU - Shi, Zongbo

AU - Harrison, Roy M.

PY - 2024/6/18

Y1 - 2024/6/18

N2 - New particle formation (NPF) is a major source of atmospheric aerosol particles, including cloud condensation nuclei (CCN), by number globally. Previous research has highlighted that NPF is less frequent but more intense at roadsides compared to urban background. Here, we closely examine NPF at both background and roadside sites in urban Central Europe. We show that the concentration of oxygenated organic molecules (OOMs) is greater at the roadside, and the condensation of OOMs along with sulfuric acid onto new particles is sufficient to explain the growth at both sites. We identify a hitherto unreported traffic-related OOM source contributing 29% and 16% to total OOMs at the roadside and background, respectively. Critically, this hitherto undiscovered OOM source is an essential component of urban NPF. Without their contribution to growth rates and the subsequent enhancements to particle survival, the number of >50 nm particles produced by NPF would be reduced by a factor of 21 at the roadside site. Reductions to hydrocarbon emissions from road traffic may thereby reduce particle numbers and CCN counts.

AB - New particle formation (NPF) is a major source of atmospheric aerosol particles, including cloud condensation nuclei (CCN), by number globally. Previous research has highlighted that NPF is less frequent but more intense at roadsides compared to urban background. Here, we closely examine NPF at both background and roadside sites in urban Central Europe. We show that the concentration of oxygenated organic molecules (OOMs) is greater at the roadside, and the condensation of OOMs along with sulfuric acid onto new particles is sufficient to explain the growth at both sites. We identify a hitherto unreported traffic-related OOM source contributing 29% and 16% to total OOMs at the roadside and background, respectively. Critically, this hitherto undiscovered OOM source is an essential component of urban NPF. Without their contribution to growth rates and the subsequent enhancements to particle survival, the number of >50 nm particles produced by NPF would be reduced by a factor of 21 at the roadside site. Reductions to hydrocarbon emissions from road traffic may thereby reduce particle numbers and CCN counts.

KW - aerosol

KW - NPF

KW - nucleation

KW - pollution

KW - traffic

U2 - 10.1021/acs.est.3c10526

DO - 10.1021/acs.est.3c10526

M3 - Article

C2 - 38850427

AN - SCOPUS:85195605921

SN - 1520-5851

VL - 58

SP - 10664

EP - 10674

JO - Environmental Science and Technology

JF - Environmental Science and Technology

IS - 24

ER -

Road Traffic Emissions Lead to Much Enhanced New Particle Formation through Increased Growth Rates

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!!ASJC Scopus subject areas

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