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Showing 1 to 6 of 6 entries
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Solar eclipse demonstrating the importance of photochemistry in new particle formation.

Scientific reports

Jokinen T, Kontkanen J, Lehtipalo K, Manninen HE, Aalto J, Porcar-Castell A, Garmash O, Nieminen T, Ehn M, Kangasluoma J, Junninen H, Levula J, Duplissy J, Ahonen LR, Rantala P, Heikkinen L, Yan C, Sipilä M, Worsnop DR, Bäck J, Petäjä T, Kerminen VM, Kulmala M.
PMID: 28374761
Sci Rep. 2017 Apr 04;7:45707. doi: 10.1038/srep45707.

Solar eclipses provide unique possibilities to investigate atmospheric processes, such as new particle formation (NPF), important to the global aerosol load and radiative balance. The temporary absence of solar radiation gives particular insight into different oxidation and clustering processes...

Molecular-scale evidence of aerosol particle formation via sequential addition of HIO.

Nature

Sipilä M, Sarnela N, Jokinen T, Henschel H, Junninen H, Kontkanen J, Richters S, Kangasluoma J, Franchin A, Peräkylä O, Rissanen MP, Ehn M, Vehkamäki H, Kurten T, Berndt T, Petäjä T, Worsnop D, Ceburnis D, Kerminen VM, Kulmala M, O'Dowd C.
PMID: 27580030
Nature. 2016 Sep 22;537(7621):532-534. doi: 10.1038/nature19314. Epub 2016 Aug 31.

Homogeneous nucleation and subsequent cluster growth leads to the formation of new aerosol particles in the atmosphere. The nucleation of sulfuric acid and organic vapours is thought to be responsible for the formation of new particles over continents, whereas...

Role of sulphuric acid, ammonia and galactic cosmic rays in atmospheric aerosol nucleation.

Nature

Kirkby J, Curtius J, Almeida J, Dunne E, Duplissy J, Ehrhart S, Franchin A, Gagné S, Ickes L, Kürten A, Kupc A, Metzger A, Riccobono F, Rondo L, Schobesberger S, Tsagkogeorgas G, Wimmer D, Amorim A, Bianchi F, Breitenlechner M, David A, Dommen J, Downard A, Ehn M, Flagan RC, Haider S, Hansel A, Hauser D, Jud W, Junninen H, Kreissl F, Kvashin A, Laaksonen A, Lehtipalo K, Lima J, Lovejoy ER, Makhmutov V, Mathot S, Mikkilä J, Minginette P, Mogo S, Nieminen T, Onnela A, Pereira P, Petäjä T, Schnitzhofer R, Seinfeld JH, Sipilä M, Stozhkov Y, Stratmann F, Tomé A, Vanhanen J, Viisanen Y, Vrtala A, Wagner PE, Walther H, Weingartner E, Wex H, Winkler PM, Carslaw KS, Worsnop DR, Baltensperger U, Kulmala M.
PMID: 21866156
Nature. 2011 Aug 24;476(7361):429-33. doi: 10.1038/nature10343.

Atmospheric aerosols exert an important influence on climate through their effects on stratiform cloud albedo and lifetime and the invigoration of convective storms. Model calculations suggest that almost half of the global cloud condensation nuclei in the atmospheric boundary...

The effect of acid-base clustering and ions on the growth of atmospheric nano-particles.

Nature communications

Lehtipalo K, Rondo L, Kontkanen J, Schobesberger S, Jokinen T, Sarnela N, Kürten A, Ehrhart S, Franchin A, Nieminen T, Riccobono F, Sipilä M, Yli-Juuti T, Duplissy J, Adamov A, Ahlm L, Almeida J, Amorim A, Bianchi F, Breitenlechner M, Dommen J, Downard AJ, Dunne EM, Flagan RC, Guida R, Hakala J, Hansel A, Jud W, Kangasluoma J, Kerminen VM, Keskinen H, Kim J, Kirkby J, Kupc A, Kupiainen-Määttä O, Laaksonen A, Lawler MJ, Leiminger M, Mathot S, Olenius T, Ortega IK, Onnela A, Petäjä T, Praplan A, Rissanen MP, Ruuskanen T, Santos FD, Schallhart S, Schnitzhofer R, Simon M, Smith JN, Tröstl J, Tsagkogeorgas G, Tomé A, Vaattovaara P, Vehkamäki H, Vrtala AE, Wagner PE, Williamson C, Wimmer D, Winkler PM, Virtanen A, Donahue NM, Carslaw KS, Baltensperger U, Riipinen I, Curtius J, Worsnop DR, Kulmala M.
PMID: 27197574
Nat Commun. 2016 May 20;7:11594. doi: 10.1038/ncomms11594.

The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to understand how particles grow in the atmosphere. Insufficient experimental data has impeded a profound understanding of...

Neutral molecular cluster formation of sulfuric acid-dimethylamine observed in real time under atmospheric conditions.

Proceedings of the National Academy of Sciences of the United States of America

Kürten A, Jokinen T, Simon M, Sipilä M, Sarnela N, Junninen H, Adamov A, Almeida J, Amorim A, Bianchi F, Breitenlechner M, Dommen J, Donahue NM, Duplissy J, Ehrhart S, Flagan RC, Franchin A, Hakala J, Hansel A, Heinritzi M, Hutterli M, Kangasluoma J, Kirkby J, Laaksonen A, Lehtipalo K, Leiminger M, Makhmutov V, Mathot S, Onnela A, Petäjä T, Praplan AP, Riccobono F, Rissanen MP, Rondo L, Schobesberger S, Seinfeld JH, Steiner G, Tomé A, Tröstl J, Winkler PM, Williamson C, Wimmer D, Ye P, Baltensperger U, Carslaw KS, Kulmala M, Worsnop DR, Curtius J.
PMID: 25288761
Proc Natl Acad Sci U S A. 2014 Oct 21;111(42):15019-24. doi: 10.1073/pnas.1404853111. Epub 2014 Oct 06.

For atmospheric sulfuric acid (SA) concentrations the presence of dimethylamine (DMA) at mixing ratios of several parts per trillion by volume can explain observed boundary layer new particle formation rates. However, the concentration and molecular composition of the neutral...

Enhanced Volatile Organic Compounds emissions and organic aerosol mass increase the oligomer content of atmospheric aerosols.

Scientific reports

Kourtchev I, Giorio C, Manninen A, Wilson E, Mahon B, Aalto J, Kajos M, Venables D, Ruuskanen T, Levula J, Loponen M, Connors S, Harris N, Zhao D, Kiendler-Scharr A, Mentel T, Rudich Y, Hallquist M, Doussin JF, Maenhaut W, Bäck J, Petäjä T, Wenger J, Kulmala M, Kalberer M.
PMID: 27733773
Sci Rep. 2016 Oct 13;6:35038. doi: 10.1038/srep35038.

Secondary organic aerosol (SOA) accounts for a dominant fraction of the submicron atmospheric particle mass, but knowledge of the formation, composition and climate effects of SOA is incomplete and limits our understanding of overall aerosol effects in the atmosphere....

Showing 1 to 6 of 6 entries