Matches in SemOpenAlex for { <https://semopenalex.org/work/W4376645947> ?p ?o ?g. }
- W4376645947 endingPage "5433" @default.
- W4376645947 startingPage "5419" @default.
- W4376645947 abstract "Abstract. Secondary organic aerosol (SOA) has been identified as a major contributor to fine particulate matter (PM2.5) in the North China Plain (NCP). However, the chemical mechanisms involved are still unclear due to incomplete understanding of its multiple formation processes. Here we report field observations in summer in Handan of the NCP, based on high-resolution online measurements. Our results reveal the formation of SOA via photochemistry and two types of aqueous-phase chemistry, the latter of which include nocturnal and daytime processing. The photochemical pathway is the most important under high-Ox (i.e., O3 + NO2) conditions (65.1 ± 20.4 ppb). The efficient SOA formation from photochemistry (Ox-initiated SOA) dominated the daytime (65 % to OA), with an average growth rate of 0.8 µgm-3h-1. During the high-relative-humidity (RH; 83.7 ± 12.5 %) period, strong nocturnal aqueous-phase SOA formation (aqSOA) played a significant role in SOA production (45 % to OA), with a nighttime growth rate of 0.6 µgm-3h-1. Meanwhile, an equally fast growth rate of 0.6 µgm-3h-1 of Ox-initiated SOA from daytime aqueous-phase photochemistry was also observed, which contributed 39 % to OA, showing that photochemistry in the aqueous phase is also a non-negligible pathway in summer. The primary-related SOA (SOA attributed to primary particulate organics) and aqSOA are related to residential coal combustion activities, supported by distinct fragments from polycyclic aromatic hydrocarbons (PAHs). Moreover, the conversion and rapid oxidation of primary-related SOA to aqSOA were possible in the aqueous phase under high-RH conditions. This work sheds light on the multiple formation pathways of SOA in ambient air of complex pollution and improves our understanding of ambient SOA formation and aging in summer with high oxidation capacity." @default.
- W4376645947 created "2023-05-17" @default.
- W4376645947 creator A5005729980 @default.
- W4376645947 creator A5017416862 @default.
- W4376645947 creator A5024706119 @default.
- W4376645947 creator A5035141686 @default.
- W4376645947 creator A5039156285 @default.
- W4376645947 creator A5040023626 @default.
- W4376645947 creator A5052806317 @default.
- W4376645947 creator A5057116706 @default.
- W4376645947 creator A5077591617 @default.
- W4376645947 creator A5082268807 @default.
- W4376645947 creator A5084574203 @default.
- W4376645947 creator A5091955781 @default.
- W4376645947 date "2023-05-16" @default.
- W4376645947 modified "2023-09-26" @default.
- W4376645947 title "Multiple pathways for the formation of secondary organic aerosol in the North China Plain in summer" @default.
- W4376645947 cites W1566373779 @default.
- W4376645947 cites W1634791384 @default.
- W4376645947 cites W1930529906 @default.
- W4376645947 cites W1965571022 @default.
- W4376645947 cites W1968862760 @default.
- W4376645947 cites W2004860873 @default.
- W4376645947 cites W2016723308 @default.
- W4376645947 cites W2017530241 @default.
- W4376645947 cites W2021872914 @default.
- W4376645947 cites W2039220086 @default.
- W4376645947 cites W2043878139 @default.
- W4376645947 cites W2069022880 @default.
- W4376645947 cites W2089079408 @default.
- W4376645947 cites W2096804035 @default.
- W4376645947 cites W2104975486 @default.
- W4376645947 cites W2107371694 @default.
- W4376645947 cites W2111369201 @default.
- W4376645947 cites W2113154377 @default.
- W4376645947 cites W2117610650 @default.
- W4376645947 cites W2122054302 @default.
- W4376645947 cites W2130042267 @default.
- W4376645947 cites W2138088023 @default.
- W4376645947 cites W2144923407 @default.
- W4376645947 cites W2171810356 @default.
- W4376645947 cites W2220682612 @default.
- W4376645947 cites W2344147658 @default.
- W4376645947 cites W2345639257 @default.
- W4376645947 cites W2435368322 @default.
- W4376645947 cites W2510035184 @default.
- W4376645947 cites W2566760819 @default.
- W4376645947 cites W2567098959 @default.
- W4376645947 cites W2588290858 @default.
- W4376645947 cites W2601633006 @default.
- W4376645947 cites W2607350314 @default.
- W4376645947 cites W2739525796 @default.
- W4376645947 cites W2781878852 @default.
- W4376645947 cites W2783619428 @default.
- W4376645947 cites W2844762458 @default.
- W4376645947 cites W2883442273 @default.
- W4376645947 cites W2900028555 @default.
- W4376645947 cites W2905626381 @default.
- W4376645947 cites W2939064738 @default.
- W4376645947 cites W2970394490 @default.
- W4376645947 cites W2981945346 @default.
- W4376645947 cites W3009850252 @default.
- W4376645947 cites W3010383010 @default.
- W4376645947 cites W3023524842 @default.
- W4376645947 cites W3029416715 @default.
- W4376645947 cites W3110443552 @default.
- W4376645947 cites W3132563333 @default.
- W4376645947 cites W3187535571 @default.
- W4376645947 cites W4281740256 @default.
- W4376645947 doi "https://doi.org/10.5194/acp-23-5419-2023" @default.
- W4376645947 hasPublicationYear "2023" @default.
- W4376645947 type Work @default.
- W4376645947 citedByCount "0" @default.
- W4376645947 crossrefType "journal-article" @default.
- W4376645947 hasAuthorship W4376645947A5005729980 @default.
- W4376645947 hasAuthorship W4376645947A5017416862 @default.
- W4376645947 hasAuthorship W4376645947A5024706119 @default.
- W4376645947 hasAuthorship W4376645947A5035141686 @default.
- W4376645947 hasAuthorship W4376645947A5039156285 @default.
- W4376645947 hasAuthorship W4376645947A5040023626 @default.
- W4376645947 hasAuthorship W4376645947A5052806317 @default.
- W4376645947 hasAuthorship W4376645947A5057116706 @default.
- W4376645947 hasAuthorship W4376645947A5077591617 @default.
- W4376645947 hasAuthorship W4376645947A5082268807 @default.
- W4376645947 hasAuthorship W4376645947A5084574203 @default.
- W4376645947 hasAuthorship W4376645947A5091955781 @default.
- W4376645947 hasBestOaLocation W43766459471 @default.
- W4376645947 hasConcept C105923489 @default.
- W4376645947 hasConcept C107872376 @default.
- W4376645947 hasConcept C121332964 @default.
- W4376645947 hasConcept C127313418 @default.
- W4376645947 hasConcept C1276947 @default.
- W4376645947 hasConcept C149556010 @default.
- W4376645947 hasConcept C153294291 @default.
- W4376645947 hasConcept C158960510 @default.
- W4376645947 hasConcept C162725370 @default.
- W4376645947 hasConcept C178790620 @default.
- W4376645947 hasConcept C184651966 @default.