Distribution and stable carbon isotopic composition of dicarboxylic acids, ketocarboxylic acids and <italic>α</italic>-dicarbonyls in fresh and aged biomass burning aerosols

zu Verbundenen Objekten

Abstract δ 13 4) was the most abundant species in fresh samples, while oxalic acid (C2) became dominant after atmospheric aging. Of all diacids, C2 had the highest aged to fresh emission ratios (A/F), suggesting that C2 is largely produced through secondary photochemical processes. Compared with fresh samples, the emission factors of ketocarboxylic acids and α δ 13 2 for aged biomass samples were higher than those of urban aerosols but lower than marine or mountain aerosols, and the δ 13 2 became isotopically heavier during aging. Relationships between the reduction in volatile organic compounds (VOCs), such as toluene, benzene and isoprene, and increase in diacids after 2 d aging indicate that these VOCs led to the formation of diacids. However, no significant correlation was found between decreases in VOCs and increases in 7 d aged diacids. In addition, the A/F of C2 was 50.8 at 2 d and 64.5 at 7 d, indicating that the conversion of VOCs to C2 was almost completed within 2 d. For the longer aging times, the particulate-phase compounds may undergo further degradation in the oxidation processes.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Distribution and stable carbon isotopic composition of dicarboxylic acids, ketocarboxylic acids and α-dicarbonyls in fresh and aged biomass burning aerosols ; volume:22 ; number:11 ; year:2022 ; pages:7489-7504 ; extent:16
Atmospheric chemistry and physics ; 22, Heft 11 (2022), 7489-7504 (gesamt 16)

Urheber
Shen, Minxia
Ho, Kin Fai
Dai, Wenting
Liu, Suixin
Zhang, Ting
Wang, Qiyuan
Meng, Jingjing
Chow, Judith C.
Watson, John G.
Cao, Junji
Li, Jianjun

DOI
10.5194/acp-22-7489-2022
URN
urn:nbn:de:101:1-2022061605284242744972
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
04.01.0021, 00:33 MEZ

Datenpartner

Dieses Objekt wird bereitgestellt von:
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Original beim Datenpartner anzeigen

Beteiligte

  • Shen, Minxia
  • Ho, Kin Fai
  • Dai, Wenting
  • Liu, Suixin
  • Zhang, Ting
  • Wang, Qiyuan
  • Meng, Jingjing
  • Chow, Judith C.
  • Watson, John G.
  • Cao, Junji
  • Li, Jianjun

Ähnliche Objekte (12)

Amino acid racemization in Neogloboquadrina pachyderma and Cibicidoides wuellerstorfi from the Arctic Ocean and its implications for age models

Amino acid racemization in <italic>Neogloboquadrina pachyderma</italic> and <italic>Cibicidoides wuellerstorfi</italic> from the Arctic Ocean and its implications for age models

Distribution and stable carbon isotopic composition of dicarboxylic acids, ketocarboxylic acids and &alpha;-dicarbonyls in fresh and aged biomass burning aerosols

Distribution and stable carbon isotopic composition of dicarboxylic acids, ketocarboxylic acids and &alpha;-dicarbonyls in fresh and aged biomass burning aerosols

Technical note: Improved synthetic routes to cis- and trans-(2-methyloxirane-2,3-diyl) dimethanol (cis- and trans-β-isoprene epoxydiol)

Technical note: Improved synthetic routes to <italic>cis</italic>- and <italic>trans</italic>-(2-methyloxirane-2,3-diyl) dimethanol (<italic>cis</italic>- and <italic>trans</italic>-<italic>β</italic>-isoprene epoxydiol)

New shell information and new generic attributions for the Egyptian podocnemidid turtles “Podocnemis” fajumensis (Oligocene) and “Podocnemis” aegyptiaca (Miocene)

New shell information and new generic attributions for the Egyptian podocnemidid turtles “<italic>Podocnemis</italic>” <italic>fajumensis</italic> (Oligocene) and “<italic>Podocnemis</italic>” <italic>aegyptiaca</italic> (Miocene)

Polymorphisms of the HRG, FETUB, and GUCY1A1 genes and their association with litter size in sheep

Polymorphisms of the <italic>HRG</italic>, <italic>FETUB</italic>, and <italic>GUCY1A1</italic> genes and their association with litter size in sheep

Investigating InDels in YAP and TAZ genes and their impact on growth characteristics in goats

Investigating <italic>InDels</italic> in <italic>YAP</italic> and <italic>TAZ</italic> genes and their impact on growth characteristics in goats

Conjugate aurora observations by the Gjøa and Discovery expeditions

Conjugate aurora observations by the <italic>Gjøa</italic> and <italic>Discovery</italic> expeditions

LamaH | Large-Sample Data for Hydrology and Environmental Sciences for Central Europe

LamaH | <italic>La</italic>rge-Sa<italic>m</italic>ple D<italic>a</italic>ta for <italic>H</italic>ydrology and Environmental Sciences for Central Europe

Genome-wide analysis of microsatellite and sex-linked marker identification in Gleditsia sinensis

Genome-wide analysis of microsatellite and sex-linked marker identification in Gleditsia sinensis

HMS Challenger and SMS Gazelle – their 19th century voyages compared

HMS <italic>Challenger</italic> and SMS <italic>Gazelle</italic> – their 19th century voyages compared

Lin28B overexpression decreases let-7b and let-7g levels and increases proliferation and estrogen secretion in Dolang sheep ovarian granulosa cells

<italic>Lin28B</italic> overexpression decreases <italic>let-7b</italic> and <italic>let-7g</italic> levels and increases proliferation and estrogen secretion in Dolang sheep ovarian granulosa cells

Polymorphism detection of DGAT1 and Lep genes in Anatolian water buffalo (Bubalus bubalis) populations in Turkey

Polymorphism detection of <italic>DGAT1</italic> and <italic>Lep</italic> genes in Anatolian water buffalo (<italic>Bubalus bubalis</italic>) populations in Turkey

Verbundene Objekte