Hygroscopicity, CCN and volatility properties of submicron atmospheric aerosol in a boreal forest environment during the summer of 2010

被引：55

作者：

Hong, J. ^{[1
]}

Hakkinen, S. A. K. ^{[1
,2
]}

Paramonov, M. ^{[1
]}

Aijala, M. ^{[1
]}

Hakala, J. ^{[1
]}

Nieminen, T. ^{[1
,3
]}

Mikkila, J. ^{[4
]}

Prisle, N. L. ^{[1
]}

Kulmala, M. ^{[1
]}

Riipinen, I. ^{[5
,6
]}

Bilde, M. ^{[7
]}

Kerminen, V. -M. ^{[1
]}

Petaja, T. ^{[1
]}

机构：

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

[2] Columbia Univ, Dept Chem Engn, New York, NY 10027 USA

[3] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[4] AirModus OY, Helsinki, Finland

[5] Stockholm Univ, Dept Appl Environm Sci, S-10691 Stockholm, Sweden

[6] Stockholm Univ, Bert Bolin Ctr Climate Res, S-10691 Stockholm, Sweden

[7] Aarhus Univ, Dept Chem, DK-8000 Aarhus C, Denmark

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2014年 / 14卷 / 09期

基金：

欧洲研究理事会; 芬兰科学院;

关键词：

CLOUD CONDENSATION NUCLEI; SECONDARY ORGANIC AEROSOL; SIZE-RESOLVED MEASUREMENTS; DROPLET ACTIVATION; SULFURIC-ACID; MASS-SPECTROMETER; AMMONIUM-SULFATE; PARTICLES; GROWTH; TDMA;

D O I：

10.5194/acp-14-4733-2014

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A Volatility-Hygroscopicity Tandem Differential Mobility Analyzer (VH-TDMA) was applied to study the hygroscopicity and volatility properties of submicron atmospheric aerosol particles in a boreal forest environment in Hyytiala, Finland during the summer of 2010. Aitken and accumulation mode internally mixed particles (50 nm, 75 nm and 110 nm in diameter) were investigated. Hygroscopicity was found to increase with particle size. The relative mass fraction of organics and SO42- is probably the major contributor to the fluctuation of the hygroscopicity for all particle sizes. The Cloud Condensation Nuclei Counter (CCNC)-derived hygroscopicity parameter kappa was observed to be slightly higher than kappa calculated from VH-TDMA data under sub-saturated conditions, potential reasons for this behavior are discussed shortly. Also, the size-resolved volatility properties of particles were investigated. Upon heating, more small particles evaporated compared to large particles. There was a significant amount of aerosol volume (non-volatile material) left, even at heating temperatures of 280 degrees C. Using size resolved volatility-hygroscopicity analysis, we concluded that there was always hygroscopic material remaining in the particles at different heating temperatures, even at 280 degrees C. This indicates that the observed non-volatile aerosol material did not consist solely of black carbon.

引用

页码：4733 / 4748

页数：16

共 21 条

[21] Physical properties of the sub-micrometer aerosol over the Amazon rain forest during the wet-to-dry season transition - comparison of modeled and measured CCN concentrations
Rissler, J
Swietlicki, E
Zhou, J
Roberts, G
Andreae, MO
Gatti, LV
Artaxo, P
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2004, 4 : 2119 - 2143

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