Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Swietlicki Erik) ;pers:(Rissler Jenny)"

Sökning: WFRF:(Swietlicki Erik) > Rissler Jenny

  • Resultat 1-10 av 75
Sortera/gruppera träfflistan
  • Eriksson, Axel, et al. (författare)
  • Diesel soot aging in urban plumes within hours under cold dark and humid conditions
  • 2017
  • Ingår i: Scientific Reports. - Nature Publishing Group. - 2045-2322.
  • Tidskriftsartikel (refereegranskat)abstract
    • Fresh and aged diesel soot particles have different impacts on climate and human health. Whilefresh diesel soot particles are highly aspherical and non-hygroscopic, aged particles are sphericaland hygroscopic. Aging and its effect on water uptake also controls the dispersion of diesel soot inthe atmosphere. Understanding the timescales on which diesel soot ages in the atmosphere is thus important, yet knowledge thereof is lacking. We show that under cold, dark and humid conditions the atmospheric transformation from fresh to aged soot occurs on a timescale of less than five hours. Under dry conditions in the laboratory, diesel soot transformation is much less efficient. While photochemistry drives soot aging, our data show it is not always a limiting factor. Field observations together with aerosol process model simulations show that the rapid ambient diesel soot aging in urban plumes is caused by coupled ammonium nitrate formation and water uptake
  • Fors, Erik, et al. (författare)
  • Hygroscopic properties of Amazonian biomass burning and European background HULIS and investigation of their effects on surface tension with two models linking H-TDMA to CCNC data
  • 2010
  • Ingår i: Atmospheric Chemistry and Physics. - Copernicus Gesellschaft Mbh. - 1680-7324. ; 10:12, s. 5625-5639
  • Tidskriftsartikel (refereegranskat)abstract
    • HUmic-LIke Substances (HULIS) have been identified as major contributors to the organic carbon in atmospheric aerosol. The term "HULIS" is used to describe the organic material found in aerosol particles that resembles the humic organic material in rivers and sea water and in soils. In this study, two sets of filter samples from atmospheric aerosols were collected at different sites. One set of samples was collected at the K-puszta rural site in Hungary, about 80 km SE of Budapest, and a second was collected at a site in Rondonia, Amazonia, Brazil, during the Large-Scale Biosphere-Atmosphere Experiment in Amazonia - Smoke Aerosols, Clouds, Rainfall and Climate (LBA-SMOCC) biomass burning season experiment. HULIS were extracted from the samples and their hygroscopic properties were studied using a Hygroscopicity Tandem Differential Mobility Analyzer (H-TDMA) at relative humidity (RH) < 100%, and a cloud condensation nucleus counter (CCNC) at RH > 100%. The H-TDMA measurements were carried out at a dry diameter of 100 nm and for RH ranging from 30 to 98%. At 90% RH the HULIS samples showed diameter growth factors between 1.04 and 1.07, reaching values of 1.4 at 98% RH. The cloud nucleating properties of the two sets of aerosol samples were analysed using two types of thermal static cloud condensation nucleus counters. Two different parameterization models were applied to investigate the potential effect of HULIS surface activity, both yielding similar results. For the K-puszta winter HULIS sample, the surface tension at the point of activation was estimated to be lowered by between 34% (47.7 mN/m) and 31% (50.3 mN/m) for dry sizes between 50 and 120 nm in comparison to pure water. A moderate lowering was also observed for the entire water soluble aerosol sample, including both organic and inorganic compounds, where the surface tension was decreased by between 2% (71.2 mN/m) and 13% (63.3 mN/m).
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 75
fritt online (49)
Typ av publikation
konferensbidrag (47)
tidskriftsartikel (24)
rapport (4)
Typ av innehåll
refereegranskat (58)
övrigt vetenskapligt (17)
Swietlicki, Erik, (75)
Pagels, Joakim, (55)
Löndahl, Jakob, (31)
Bohgard, Mats, (29)
Eriksson, Axel, (26)
visa fler...
Nordin, Erik, (25)
Svenningsson, Birgit ... (24)
Nilsson, Patrik, (19)
Boman, Christoffer (18)
Wierzbicka, Aneta, (16)
Blomberg, Anders, (15)
Sandström, Thomas, (14)
Wittbom, Cerina, (13)
Sanati, Mehri, (12)
Strand, Michael, (11)
Massling, Andreas (11)
Roldin, Pontus, (9)
Gudmundsson, Anders, (9)
Loft, Steffen (7)
Zhou, Jingchuan (7)
Lillieblad, Lena (7)
Kulmala, Markku (6)
Carlsson, Jonatan, (6)
Nicklasson, Hanna, (6)
Kristensson, Adam, (5)
Kajos, Maija (5)
Frosch, Mia (5)
Wollmer, Per, (4)
Nyström, Robin (4)
Sjögren, Staffan, (4)
Hallquist, Mattias (4)
Pettersson, Esbjörn (4)
Andreae, MO (4)
Artaxo, P. (3)
Frank, Göran, (3)
Fors, Erik, (3)
Sandstrom, Thomas (3)
Nordin, Anders (3)
Decesari, S. (3)
Vestin, A (3)
Kulmala, M (2)
Johansson, Christer (2)
Ahlberg, Erik, (2)
Martinsson, Johan, (2)
Messing, Maria, (2)
Bengtsson, Agneta (2)
Bilde, M. (2)
Dahl, Andreas, (2)
Sjögren, S (2)
visa färre...
Lunds universitet (74)
Umeå universitet (4)
Linnéuniversitetet (2)
Göteborgs universitet (2)
RISE (2)
Luleå tekniska universitet (1)
visa fler...
Stockholms universitet (1)
visa färre...
Engelska (74)
Svenska (1)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (56)
Teknik (54)
Medicin och hälsovetenskap (5)


pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy