Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-15651-2019 |
Potential dual effect of anthropogenic emissions on the formation of biogenic secondary organic aerosol (BSOA) | |
Kari, Eetu1,6; Hao, Liqing1; Ylisirnio, Arttu1; Buchholz, Angela1; Leskinen, Ari1,2; Yli-Pirila, Pasi3; Nuutinen, Ilpo3,7; Kuuspalo, Kari3,7; Jokiniemi, Jorma3; Faiola, Celia L.4,5; Schobesberger, Siegfried1; Virtanen, Annele1 | |
2019-12-20 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:24页码:15651-15671 |
文章类型 | Article |
语种 | 英语 |
国家 | Finland; USA |
英文摘要 | The fraction of gasoline direct-injection (GDI) vehicles comprising the total vehicle pool is projected to increase in the future. However, thorough knowledge about the influence of GDI engines on important atmospheric chemistry processes is missing - namely, their contribution to secondary organic aerosol (SOA) precursor emissions, contribution to SOA formation, and potential role in biogenic- anthropogenic interactions. The objectives of this study were to (1) characterize emissions from modern GDI vehicles and investigate their role in SOA formation chemistry and (2) investigate biogenic-anthropogenic interactions related to SOA formation from a mixture of GDI-vehicle emissions and a model biogenic compound, alpha-pinene. Specifically, we studied SOA formation from modern GDI-vehicle emissions during the constant-load driving. In this study we show that SOA formation from GDI-vehicle emissions was observed in each experiment. Volatile organic compounds (VOCs) measured with the proton-transfer-reaction time-offlight mass spectrometer (PTR-ToF-MS) could account for 19%-42% of total SOA mass generated in each experiment. This suggests that there were lower-volatility intermediate VOCs (IVOCs) and semi-volatile organic compounds (SVOCs) in the GDI-vehicle exhaust that likely contributed to SOA production but were not detected with the instrumen tation used in this study. This study also demonstrates that two distinct mechanisms caused by anthropogenic emissions suppress a-pinene SOA mass yield. The first suppressing effect was the presence of NOx. This mechanism is consistent with previous reports demonstrating suppression of biogenic SOA formation in the presence of anthropogenic emissions. Our results indicate a possible second suppressing effect, and we suggest that the presence of anthropogenic gasphase species may have suppressed biogenic SOA formation by alterations to the gas-phase chemistry of alpha-pinene. This hypothesized change in oxidation pathways led to the formation of alpha-pinene oxidation products that most likely did not have vapor pressures low enough to partition into the particle phase. Overall, the presence of gasoline-vehicle exhaust caused a more than 50 % suppression in alpha-pinene SOA mass yield compared to the alpha-pinene SOA mass yield measured in the absence of any anthropogenic influence. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504010900004 |
WOS关键词 | REACTION MASS-SPECTROMETRY ; GASOLINE DIRECT-INJECTION ; POSITIVE MATRIX FACTORIZATION ; ON-ROAD GASOLINE ; VEHICLE EMISSIONS ; COLD-START ; ATMOSPHERIC CHEMISTRY ; PARTICLE FORMATION ; SOA FORMATION ; ALPHA-PINENE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224154 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Eastern Finland, Dept Appl Phys, Kuopio, Finland; 2.Finnish Meteorol Inst, Kuopio, Finland; 3.Univ Eastern Finland, Dept Environm & Biol Sci, Kuopio, Finland; 4.Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92717 USA; 5.Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA; 6.Neste Oyj, Porvoo, Finland; 7.Savonia Univ Appl Sci, Kuopio, Finland |
推荐引用方式 GB/T 7714 | Kari, Eetu,Hao, Liqing,Ylisirnio, Arttu,et al. Potential dual effect of anthropogenic emissions on the formation of biogenic secondary organic aerosol (BSOA)[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(24):15651-15671. |
APA | Kari, Eetu.,Hao, Liqing.,Ylisirnio, Arttu.,Buchholz, Angela.,Leskinen, Ari.,...&Virtanen, Annele.(2019).Potential dual effect of anthropogenic emissions on the formation of biogenic secondary organic aerosol (BSOA).ATMOSPHERIC CHEMISTRY AND PHYSICS,19(24),15651-15671. |
MLA | Kari, Eetu,et al."Potential dual effect of anthropogenic emissions on the formation of biogenic secondary organic aerosol (BSOA)".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.24(2019):15651-15671. |
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