Secondary Organic Aerosol Formation Potential from Vehicular Non-tailpipe Emissions under Real-World Driving Conditions
Traffic emissions are a dominant source of secondary organic aerosol (SOA) in urban environments. Though tailpipe exhaust has drawn extensive attention, the impact of non-tailpipe emissions on atmospheric SOA has not been well studied. Here, a closure study was performed combining urban tunnel experiments and dynamometer tests using an oxidation flow reactor in situ photo-oxidation. Results show a significant gap between field and laboratory research; the average SOA formation potential from real-world fleet is 639 ± 156 mg kg fuel-1, higher than the reconstructed result (188 mg kg fuel-1) based on dynamometer tests coupled with fleet composition inside the tunnel. Considering the minimal variation of SOA/CO in emission standards, we also reconstruct CO and find the critical role of high-emitting events in the real-world SOA burden. Different profiles of organic gases are detected inside the tunnel than tailpipe exhaust, such as more abundant C6-C9 aromatics, C11-C16 species, and benzothiazoles, denoting contributions from non-tailpipe emissions to SOA formation. Using these surrogate chemical compounds, we roughly estimate that high-emitting, evaporative emission, and asphalt-related and tire sublimation share 14, 20, and 10% of the SOA budget, respectively, partially explaining the gap between field and laboratory research. These experimental results highlight the importance of non-tailpipe emissions to atmospheric SOA.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2024 |
|---|---|
| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:58 |
|---|---|
| Enthalten in: |
Environmental science & technology - 58(2024), 12 vom: 26. März, Seite 5419-5429 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Zhang, Jinsheng [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
Aerosols |
|---|
| Anmerkungen: |
Date Completed 27.03.2024 Date Revised 27.03.2024 published: Print-Electronic Citation Status MEDLINE |
|---|
| doi: |
10.1021/acs.est.3c06475 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM36880884X |
|---|
| LEADER | 01000caa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM36880884X | ||
| 003 | DE-627 | ||
| 005 | 20240327235905.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 240229s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1021/acs.est.3c06475 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1351.xml |
| 035 | |a (DE-627)NLM36880884X | ||
| 035 | |a (NLM)38390902 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Zhang, Jinsheng |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Secondary Organic Aerosol Formation Potential from Vehicular Non-tailpipe Emissions under Real-World Driving Conditions |
| 264 | 1 | |c 2024 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Completed 27.03.2024 | ||
| 500 | |a Date Revised 27.03.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Traffic emissions are a dominant source of secondary organic aerosol (SOA) in urban environments. Though tailpipe exhaust has drawn extensive attention, the impact of non-tailpipe emissions on atmospheric SOA has not been well studied. Here, a closure study was performed combining urban tunnel experiments and dynamometer tests using an oxidation flow reactor in situ photo-oxidation. Results show a significant gap between field and laboratory research; the average SOA formation potential from real-world fleet is 639 ± 156 mg kg fuel-1, higher than the reconstructed result (188 mg kg fuel-1) based on dynamometer tests coupled with fleet composition inside the tunnel. Considering the minimal variation of SOA/CO in emission standards, we also reconstruct CO and find the critical role of high-emitting events in the real-world SOA burden. Different profiles of organic gases are detected inside the tunnel than tailpipe exhaust, such as more abundant C6-C9 aromatics, C11-C16 species, and benzothiazoles, denoting contributions from non-tailpipe emissions to SOA formation. Using these surrogate chemical compounds, we roughly estimate that high-emitting, evaporative emission, and asphalt-related and tire sublimation share 14, 20, and 10% of the SOA budget, respectively, partially explaining the gap between field and laboratory research. These experimental results highlight the importance of non-tailpipe emissions to atmospheric SOA | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a IVOCs | |
| 650 | 4 | |a OFR | |
| 650 | 4 | |a SOA | |
| 650 | 4 | |a non-exhaust | |
| 650 | 4 | |a non-tailpipe emissions | |
| 650 | 4 | |a tunnel measurement | |
| 650 | 7 | |a Vehicle Emissions |2 NLM | |
| 650 | 7 | |a Air Pollutants |2 NLM | |
| 650 | 7 | |a Aerosols |2 NLM | |
| 700 | 1 | |a Peng, Jianfei |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Ainan |e verfasserin |4 aut | |
| 700 | 1 | |a Du, Zhuofei |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Jiliang |e verfasserin |4 aut | |
| 700 | 1 | |a Liu, Yan |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Yicheng |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Lin |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Ting |e verfasserin |4 aut | |
| 700 | 1 | |a Song, Kai |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Song |e verfasserin |4 aut | |
| 700 | 1 | |a Collins, Don |e verfasserin |4 aut | |
| 700 | 1 | |a Mao, Hongjun |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Environmental science & technology |d 1967 |g 58(2024), 12 vom: 26. März, Seite 5419-5429 |w (DE-627)NLM112374735 |x 1520-5851 |7 nnns |
| 773 | 1 | 8 | |g volume:58 |g year:2024 |g number:12 |g day:26 |g month:03 |g pages:5419-5429 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1021/acs.est.3c06475 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 58 |j 2024 |e 12 |b 26 |c 03 |h 5419-5429 | ||