FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3046140580> ?p ?o ?g. }

• W3046140580 endingPage "117807" @default.
• W3046140580 startingPage "117807" @default.
• W3046140580 abstract "Abstract Field campaigns rarely measure individual polar organic compounds online, leaving unexplored their potential in tracking the formation dynamics of secondary organic aerosol (SOA). In a three-week-long field campaign in urban Shanghai, we deployed a commercial Thermal desorption Aerosol Gas chromatograph system (TAG) that integrates sampling, in-situ derivatization, and thermal desorption gas chromatography-mass spectrometric analysis, producing hourly measurement of polar organics including a set of biogenic and anthropogenic SOA tracers. The abundance and variations of these SOA tracers were examined in relation to five PM2.5 episodes, varying from 4 to 64 h in duration, during the field campaign from 9 November to 3 December 2018. The episodes were associated with stagnant air parcels. In comparison with the non-episodic hours, the episodic hours showed distinct chemical characteristics of a large mass increment of nitrate (an average of 4.7 fold) and secondary organic compounds (~3–6.4 fold), exceeding those of primary pollutants (1.6–1.9 fold). These results clearly indicate the significant contributions of secondary inorganic and organic production processes to forming PM2.5 episodes. The SOA concentration estimated by the set of TAG-measured SOA tracers reached an average concentration of 2.6 μg/m3, accounting for a significant portion of OA in view of that the total organic matter (OM) in PM1 measured by an Aerosol Mass Spectrometer was 7.9 μg/m3. Among them the SOA attributed to monoaromatic compounds (e.g., toluene) accounted for a noticeable portion of the total OM, implying that control strategies targeting local anthropogenic emissions would be effective in reducing the severity of episodic PM pollution. Examining the ratio of two monoterpene-derived SOA products, we found evidence of less-aged SOA in urban Shanghai, and this result was collaborated by the O/C value (0.4) of bulk OA. This work demonstrates hourly SOA tracer measurements by TAG are uniquely specific on identification of major SOA precursors for episodic events and observing the evolution of SOA." @default.
• W3046140580 created "2020-08-03" @default.
• W3046140580 creator A5010433508 @default.
• W3046140580 creator A5016487740 @default.
• W3046140580 creator A5017820327 @default.
• W3046140580 creator A5019017231 @default.
• W3046140580 creator A5026978286 @default.
• W3046140580 creator A5027475930 @default.
• W3046140580 creator A5028582293 @default.
• W3046140580 creator A5032399777 @default.
• W3046140580 creator A5035375708 @default.
• W3046140580 creator A5036690193 @default.
• W3046140580 creator A5054708490 @default.
• W3046140580 creator A5066552641 @default.
• W3046140580 creator A5077790356 @default.
• W3046140580 creator A5078119550 @default.
• W3046140580 creator A5086566120 @default.
• W3046140580 date "2020-11-01" @default.
• W3046140580 modified "2023-10-12" @default.
• W3046140580 title "Hourly measurements of organic molecular markers in urban Shanghai, China: Observation of enhanced formation of secondary organic aerosol during particulate matter episodic periods" @default.
• W3046140580 cites W1485504984 @default.
• W3046140580 cites W1964473027 @default.
• W3046140580 cites W1965356583 @default.
• W3046140580 cites W1965716001 @default.
• W3046140580 cites W1976715521 @default.
• W3046140580 cites W1984858137 @default.
• W3046140580 cites W1985136583 @default.
• W3046140580 cites W1989889548 @default.
• W3046140580 cites W1995579634 @default.
• W3046140580 cites W1998026389 @default.
• W3046140580 cites W2003068151 @default.
• W3046140580 cites W2005829248 @default.
• W3046140580 cites W2013585820 @default.
• W3046140580 cites W2021198116 @default.
• W3046140580 cites W2023769649 @default.
• W3046140580 cites W2026841279 @default.
• W3046140580 cites W2029604856 @default.
• W3046140580 cites W2031983317 @default.
• W3046140580 cites W2041502684 @default.
• W3046140580 cites W2068968500 @default.
• W3046140580 cites W2082235846 @default.
• W3046140580 cites W2087837584 @default.
• W3046140580 cites W2098655029 @default.
• W3046140580 cites W2105502538 @default.
• W3046140580 cites W2106900023 @default.
• W3046140580 cites W2113154377 @default.
• W3046140580 cites W2116015342 @default.
• W3046140580 cites W2117610650 @default.
• W3046140580 cites W2123041721 @default.
• W3046140580 cites W2136092558 @default.
• W3046140580 cites W2146206043 @default.
• W3046140580 cites W2151257693 @default.
• W3046140580 cites W2181798172 @default.
• W3046140580 cites W2332804823 @default.
• W3046140580 cites W2333534863 @default.
• W3046140580 cites W2519609452 @default.
• W3046140580 cites W2534879302 @default.
• W3046140580 cites W2557300980 @default.
• W3046140580 cites W2575065780 @default.
• W3046140580 cites W2575688813 @default.
• W3046140580 cites W2589694543 @default.
• W3046140580 cites W2680418559 @default.
• W3046140580 cites W2761511359 @default.
• W3046140580 cites W2783613756 @default.
• W3046140580 cites W2801823910 @default.
• W3046140580 cites W2947540924 @default.
• W3046140580 cites W2979380693 @default.
• W3046140580 cites W2995972079 @default.
• W3046140580 cites W3048929523 @default.
• W3046140580 doi "https://doi.org/10.1016/j.atmosenv.2020.117807" @default.
• W3046140580 hasPublicationYear "2020" @default.
• W3046140580 type Work @default.
• W3046140580 sameAs 3046140580 @default.
• W3046140580 citedByCount "25" @default.
• W3046140580 countsByYear W30461405802020 @default.
• W3046140580 countsByYear W30461405802021 @default.
• W3046140580 countsByYear W30461405802022 @default.
• W3046140580 countsByYear W30461405802023 @default.
• W3046140580 crossrefType "journal-article" @default.
• W3046140580 hasAuthorship W3046140580A5010433508 @default.
• W3046140580 hasAuthorship W3046140580A5016487740 @default.
• W3046140580 hasAuthorship W3046140580A5017820327 @default.
• W3046140580 hasAuthorship W3046140580A5019017231 @default.
• W3046140580 hasAuthorship W3046140580A5026978286 @default.
• W3046140580 hasAuthorship W3046140580A5027475930 @default.
• W3046140580 hasAuthorship W3046140580A5028582293 @default.
• W3046140580 hasAuthorship W3046140580A5032399777 @default.
• W3046140580 hasAuthorship W3046140580A5035375708 @default.
• W3046140580 hasAuthorship W3046140580A5036690193 @default.
• W3046140580 hasAuthorship W3046140580A5054708490 @default.
• W3046140580 hasAuthorship W3046140580A5066552641 @default.
• W3046140580 hasAuthorship W3046140580A5077790356 @default.
• W3046140580 hasAuthorship W3046140580A5078119550 @default.
• W3046140580 hasAuthorship W3046140580A5086566120 @default.
• W3046140580 hasConcept C107872376 @default.
• W3046140580 hasConcept C127313418 @default.
• W3046140580 hasConcept C153294291 @default.
• W3046140580 hasConcept C178790620 @default.

• next