Direct Observations of Atmospheric Aerosol Nucleation

被引：809

作者：

Kulmala, Markku ^{[1
]}

Kontkanen, Jenni ^{[1
]}

Junninen, Heikki ^{[1
]}

Lehtipalo, Katrianne ^{[1
]}

Manninen, Hanna E. ^{[1
]}

Nieminen, Tuomo ^{[1
,14
]}

Petaja, Tuukka ^{[1
]}

Sipila, Mikko ^{[1
]}

Schobesberger, Siegfried ^{[1
]}

Rantala, Pekka ^{[1
]}

Franchin, Alessandro ^{[1
]}

Jokinen, Tuija ^{[1
]}

Jarvinen, Emma ^{[1
]}

Aijala, Mikko ^{[1
]}

Kangasluoma, Juha ^{[1
]}

Hakala, Jani ^{[1
]}

Aalto, Pasi P. ^{[1
]}

Paasonen, Pauli ^{[1
]}

Mikkila, Jyri ^{[2
]}

Vanhanen, Joonas ^{[2
]}

Aalto, Juho ^{[3
]}

Hakola, Hannele ^{[4
]}

Makkonen, Ulla ^{[4
]}

Ruuskanen, Taina ^{[1
]}

Mauldin, Roy L., III ^{[1
,5
]}

Duplissy, Jonathan ^{[1
]}

Vehkamaki, Hanna ^{[1
]}

Back, Jaana ^{[6
]}

Kortelainen, Aki ^{[7
]}

Riipinen, Ilona ^{[8
]}

Kurten, Theo ^{[1
,9
]}

Johnston, Murray V. ^{[10
]}

Smith, James N. ^{[7
,11
]}

Ehn, Mikael ^{[1
,12
]}

Mentel, Thomas F. ^{[12
]}

Lehtinen, Kari E. J. ^{[4
,7
]}

Laaksonen, Ari ^{[4
,7
]}

Kerminen, Veli-Matti ^{[1
]}

Worsnop, Douglas R. ^{[1
,4
,7
,13
]}

机构：

[1] Univ Helsinki, Dept Phys, FIN-00014 Helsinki, Finland

[2] Airmodus Oy, Helsinki, Finland

[3] SMEAR Stn II, Hyytiala, Finland

[4] Finnish Meteorol Inst, Helsinki, Finland

[5] Univ Colorado, Boulder, CO 80309 USA

[6] Univ Helsinki, Dept Forest Sci, FIN-00014 Helsinki, Finland

[7] Univ Eastern Finland, Kuopio, Finland

[8] Univ Stockholm, Stockholm, Sweden

[9] Univ Helsinki, Dept Chem, FIN-00014 Helsinki, Finland

[10] Univ Delaware, Newark, DE USA

[11] Natl Ctr Atmospher Res, Boulder, CO 80307 USA

[12] Forschungszentrum Julich, IEK 8, D-52425 Julich, Germany

[13] Aerodyne Res Inc, Billerica, MA 01821 USA

[14] Helsinki Inst Phys, Helsinki, Finland

来源：

SCIENCE | 2013年 / 339卷 / 6122期

基金：

芬兰科学院; 欧洲研究理事会;

关键词：

SULFURIC-ACID; PARTICLE FORMATION; SMEAR-II; CLUSTERS; GROWTH; CLIMATE; AMINE; RATES; WATER; NANOPARTICLES;

D O I：

10.1126/science.1227385

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Atmospheric nucleation is the dominant source of aerosol particles in the global atmosphere and an important player in aerosol climatic effects. The key steps of this process occur in the sub-2-nanometer (nm) size range, in which direct size-segregated observations have not been possible until very recently. Here, we present detailed observations of atmospheric nanoparticles and clusters down to 1-nm mobility diameter. We identified three separate size regimes below 2-nm diameter that build up a physically, chemically, and dynamically consistent framework on atmospheric nucleation-more specifically, aerosol formation via neutral pathways. Our findings emphasize the important role of organic compounds in atmospheric aerosol formation, subsequent aerosol growth, radiative forcing and associated feedbacks between biogenic emissions, clouds, and climate.

引用

页码：943 / 946

页数：4

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