Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-8037-2019 |
Organic aerosol source apportionment in Zurich using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF-MS) - Part 2: Biomass burning influences in winter | |
Qi, Lu1,2; Chen, Mindong2; Stefenelli, Giulia1; Pospisilova, Veronika1; Tong, Yandong1; Bertrand, Amelie1; Hueglin, Christoph3; Ge, Xinlei2; Baltensperger, Urs1; Prevot, Andre S. H.1; Slowik, Jay G.1 | |
2019-06-20 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:12页码:8037-8062 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; Peoples R China |
英文摘要 | Real-time, in situ molecular composition measurements of the organic fraction of fine particulate matter (PM2.5) remain challenging, hindering a full understanding of the climate impacts and health effects of PM2.5. In particular, the thermal decomposition and ionization-induced fragmentation affecting current techniques has limited a detailed investigation of secondary organic aerosol (SOA), which typically dominates OA. Here we deploy a novel extractive electrospray ionization time-of-flight mass spectrometer (EESITOF-MS) during winter 2017 in downtown Zurich, Switzerland, which overcomes these limitations, together with an Aerodyne high-resolution time-of-flight aerosol mass spectrometer (HR-TOF-AMS) and supporting instrumentation. Positive matrix factorization (PMF) implemented within the Multilinear Engine (ME-2) program was applied to the EESI-TOF-MS data to quantify the primary and secondary contributions to OA. An 11-factor solution was selected as the best representation of the data, including five primary and six secondary factors. Primary factors showed influence from cooking, cigarette smoke, biomass burning (two factors) and a special local unknown event occurred only during two nights. Secondary factors were affected by biomass burning (three factors, distinguished by temperature and/or wind direction), organonitrates, monoterpene oxidation, and undetermined regional processing, in particular the contributions of wood combustion. While the AMS attributed slightly over half the OA mass to SOA but did not identify its source, the EESI-TOF-MS showed that most (> 70 %) of the SOA was derived from biomass burning. Together with significant contributions from less aged biomass burning factors identified by both AMS and EESI-TOF-MS, this firmly establishes biomass burning as the single most important contributor to OA mass at this site during winter. High correlation was obtained between EESI-TOF-MS and AMS PMF factors where specific analogues existed, as well as between total signal and POA-SOA apportionment. This suggests the EESI-TOF-MS apportionment in the current study can be approximately taken at face value, despite ion-by-ion differences in relative sensitivity. The apportionment of specific ions measured by the EESI-TOF-MS (e.g., levoglucosan, nitrocatechol, and selected organic acids) and utilization of a cluster analysis-based approach to identify key marker ions for the EESI-TOF-MS factors are investigated. The interpretability of the EESI-TOF-MS results and improved source separation relative to the AMS within this pilot campaign validate the EESITOF-MS as a promising approach to source apportionment and atmospheric composition research. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000472518600001 |
WOS关键词 | RADICAL-INITIATED REACTIONS ; NEW-YORK-CITY ; HIGH-RESOLUTION ; ATMOSPHERIC AEROSOLS ; CHEMICAL-COMPOSITION ; TRACER COMPOUNDS ; CENTRAL-EUROPE ; ALPHA-PINENE ; IDENTIFICATION ; URBAN |
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/184137 |
专题 | 地球科学 |
作者单位 | 1.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland; 2.Nanjing Univ Informat Sci & Technol, Nanjing 21000, Jiangsu, Peoples R China; 3.Empa, CH-8600 Dubendorf, Switzerland |
推荐引用方式 GB/T 7714 | Qi, Lu,Chen, Mindong,Stefenelli, Giulia,et al. Organic aerosol source apportionment in Zurich using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF-MS) - Part 2: Biomass burning influences in winter[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(12):8037-8062. |
APA | Qi, Lu.,Chen, Mindong.,Stefenelli, Giulia.,Pospisilova, Veronika.,Tong, Yandong.,...&Slowik, Jay G..(2019).Organic aerosol source apportionment in Zurich using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF-MS) - Part 2: Biomass burning influences in winter.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(12),8037-8062. |
MLA | Qi, Lu,et al."Organic aerosol source apportionment in Zurich using an extractive electrospray ionization time-of-flight mass spectrometer (EESI-TOF-MS) - Part 2: Biomass burning influences in winter".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.12(2019):8037-8062. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论