Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Atmospheric chemistry in stereo: A new look at secondary organic aerosols from isoprene
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
KTH, Skolan för kemivetenskap (CHE), Kemi, Organisk kemi.
Visa övriga samt affilieringar
2011 (Engelska)Ingår i: Geophysical Research Letters, ISSN 0094-8276, E-ISSN 1944-8007, Vol. 38, s. L11807-Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Isoprene, a compound emitted by vegetation, could be a major contributor to secondary organic aerosols (SOA) in the atmosphere. The main evidence for this contribution were the 2-methylbutane-1,2,3,4-tetraols, or 2-methyltetrols (2-methylerythritol and 2-methylthreitol) present in ambient aerosols. In this work, the four stereoisomers of these tetraols were analyzed in aerosols from Aspvreten, Sweden. 2-C-methyl-D-erythritol was found in excess over its enantiomer in the Spring/Summer, by up to 29% in July. This clearly indicated some biological origins for this enantiomer, consistent with its well-documented production by plants and other living organisms. In addition, a minimum of 20 to 60% of the mass of racemic tetraols appeared from biological origin. Thus, the SOA mass produced by isoprene in the atmosphere is less than what indicated by the 2-methyltetrols in aerosols. Our results also demonstrate that stereochemical speciation can distinguish primary and secondary organic material in atmospheric aerosols.

Ort, förlag, år, upplaga, sidor
2011. Vol. 38, s. L11807-
Nyckelord [en]
BOREAL FOREST AEROSOLS, OXIDATION-PRODUCTS, DIEL VARIATIONS, UNITED-STATES, 2-C-METHYL-D-ERYTHRITOL, PHOTOOXIDATION, PM2.5, 2-METHYLTETROLS, 2-C-METHYL-ERYTHRITOL, BIOSYNTHESIS
Nationell ämneskategori
Miljövetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-35621DOI: 10.1029/2011GL047323ISI: 000291813300002Scopus ID: 2-s2.0-79959392794OAI: oai:DiVA.org:kth-35621DiVA, id: diva2:429579
Forskningsfinansiär
Vetenskapsrådet, NT-2006-5129
Anmärkning
QC 20110705Tillgänglig från: 2011-07-05 Skapad: 2011-07-04 Senast uppdaterad: 2017-12-11Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Sök vidare i DiVA

Av författaren/redaktören
Borg-Karlson, Anna-KarinPei, YuxinPettersson Redeby, Johan
Av organisationen
Organisk kemiAnalytisk kemi
I samma tidskrift
Geophysical Research Letters
Miljövetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 210 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf