SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:DiVA.org:ivl-4406"
 

Sökning: onr:"swepub:oai:DiVA.org:ivl-4406" > The effect of tempe...

The effect of temperature and relative humidity on secondary organic aerosol formation from ozonolysis of Δ3-carene

Thomsen, Ditte (författare)
Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
Iversen, Emil Mark (författare)
Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
Skønager, Jane Tygesen (författare)
Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
visa fler...
Luo, Yuanyuan (författare)
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Li, Linjie (författare)
Gothenburg University,Göteborgs universitet,University of Gothenburg,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Department of Chemistry and Molecular Biology, University of Gothenburg, 41296 Gothenburg, Sweden
Roldin, Pontus (författare)
Lund University,Lunds universitet,MERGE: ModElling the Regional and Global Earth system,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Aerosoler,LTH profilområden,Centre for Environmental and Climate Science (CEC),Faculty of Science,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Aerosols,LTH Profile areas,Faculty of Engineering, LTH,Division of Physics, Lund University, 22100 Lund, Sweden;IVL Swedish Environmental Research Institute, 21119 Malmö, Sweden
Priestley, Michael (författare)
Gothenburg University,Göteborgs universitet,University of Gothenburg,Department of Chemistry and Molecular Biology, University of Gothenburg, 41296 Gothenburg, Sweden;IVL Swedish Environmental Research Institute, 41133 Gothenburg, Sweden,Institutionen för kemi och molekylärbiologi
Pedersen, Henrik B. (författare)
Department of Physics, Aarhus University, Aarhus C, 8000, Denmark
Hallquist, Mattias, 1969 (författare)
Gothenburg University,Göteborgs universitet,University of Gothenburg,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,Department of Chemistry and Molecular Biology, University of Gothenburg, 41296 Gothenburg, Sweden
Ehn, Mikael (författare)
Institute for Atmospheric and Earth System Research (INAR), University of Helsinki, 00014 Helsinki, Finland
Bilde, Merete (författare)
Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
Glasius, Marianne (författare)
Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark
visa färre...
 (creator_code:org_t)
Malmö : IVL Svenska Miljöinstitutet, 2024
2024
Engelska.
Ingår i: Environmental Science. - Malmö : IVL Svenska Miljöinstitutet. - 2634-3606. ; 4:1, s. 88-103
Relaterad länk:
http://dx.doi.org/10... (free)
visa fler...
https://urn.kb.se/re...
https://doi.org/10.1...
https://lup.lub.lu.s...
https://gup.ub.gu.se...
visa färre...
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • This study investigates the effects of temperature and relative humidity (RH) on the formation of secondary organic aerosol (SOA) from D3-carene, a prevalent monoterpene in boreal forests. Dark ozonolysis experiments of 10 ppb D3-carene were conducted in the Aarhus University Research on Aerosol (AURA) atmospheric simulation chamber at temperatures of 0, 10, and 20 °C. Under dry conditions (RH < 2%), the SOA formation in terms of both particle number and mass concentration shows minimal temperature dependence. This is in contrast to previous findings at higher initial concentrations and suggests an effect of VOC loading for D3-carene. Interestingly, the mass fraction of key oxidation products (cis-3-caric acid, cis-3-caronic acid) exhibit a temperature dependence suggesting continuous condensation at lower temperatures, while evaporation and further reactions over time become more favourable at higher temperatures.The oxygen-to-carbon ratios in the particle phase and the occurrence of highly oxygenated organic molecules (HOM) in the gas phase show modest increases with higher temperatures. Predictions from the Aerosol Dynamics and Gas- and Particle-Phase Chemistry Kinetic Multilayer Model (ADCHAM) agrees with the experimental results regarding both physical particle properties and aerosol composition considering theexperimental uncertainties. At high RH (∼80%, 10 °C), a considerable increase in the particle nucleation rate and particle number concentration is observed compared to experiments under dry conditions. This is likely due to enhanced particle nucleation resulting from more stable cluster formation of water and inorganics at increased RH. However, RH does not affect the particle mass concentration.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)

Nyckelord

S Organic Aerosol; Δ3‑Careneecondary

Publikations- och innehållstyp

ref (ämneskategori)
art (ämneskategori)

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy