Formation of submicron sulfate and organic aerosols in the outflow from the urban region of the Pearl River Delta in China

被引：56

作者：

Xiao, R. ^{[1
]}

Takegawa, N. ^{[2
]}

Kondo, Y. ^{[2
]}

Miyazaki, Y. ^{[2
]}

Miyakawa, T. ^{[2
]}

Hu, M. ^{[1
]}

Shao, M. ^{[1
]}

Zeng, L. M. ^{[1
]}

Hofzumahaus, A. ^{[3
]}

Holland, F. ^{[3
]}

Lu, K. ^{[1
]}

Sugimoto, N. ^{[4
]}

Zhao, Y. ^{[5
]}

Zhang, Y. H. ^{[1
]}

机构：

[1] Peking Univ, State Key Joint Lab Environm Simulat & Pollut Con, Coll Environm Sci & Engn, Beijing 100871, Peoples R China

[2] Univ Tokyo, Res Ctr Adv Sci & Technol, Tokyo 1538904, Japan

[3] Forschungszentrum Julich, Inst Chem & Dynam Geosphare 2, D-52425 Julich, Germany

[4] Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan

[5] Univ Calif Davis, Air Qual Res Ctr, Davis, CA 95616 USA

来源：

ATMOSPHERIC ENVIRONMENT | 2009年 / 43卷 / 24期

关键词：

Sulfate; Organic aerosol; Size distribution; Gas-phase oxidation; Outflow of the PRD urban region; ATMOSPHERIC PARTICULATE POLLUTANTS; MASS-SPECTROMETER AMS; SIZE DISTRIBUTIONS; CHEMICAL-COMPOSITION; DICARBOXYLIC-ACIDS; PARTICLE FORMATION; CAMPAIGN; CITIES; ISLAND; PM2.5;

D O I：

10.1016/j.atmosenv.2009.04.028

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Size-resolved chemical compositions of non-refractory submicron aerosols were measured using a quadrupole Aerodyne aerosol mass spectrometer at a rural site near Guangzhou in the Pearl River Delta (PRD) of China in the summer of 2006. Two cases characterized as the outflows from the PRD urban region with plumes of high SO2 concentration were investigated. The evolution of sulfate size distributions was observed on a timescale of several hours. Namely mass concentrations of sulfate in the condensation mode (with vacuum aerodynamic diameters (D-va) < 300 nm) increased at a rate of about 0.17-0.37 ppbv h(-1) during the daytime. This finding was consistent with the sulfuric acid production rates of about 0.17-0.3 ppbv h(-1), as calculated from the observed gas-phase concentrations of OH (similar to 3.3 x 10(6)-1.7 x 10(7) cm(-3)) and SO2 (similar to 3-21.2 ppbv). This implies that the growth of sulfate in the condensation mode was mainly due to gas-phase oxidation of SO2. The observed rapid increase was caused mainly by the concurrent high concentrations of OH and SO2 in the air mass. The evolution of the mass size distributions of m/z 44, a tracer for oxygenated organic aerosol (OOA), was very similar to that of sulfate. The mass loadings of m/z 44 were strongly correlated with those of sulfate (r(2) = 0.99) in the condensation mode, indicating that ODA might also be formed by the gas-phase oxidation of volatile organic compound (VOC) precursors. It is likely that sulfate and ODA were internally mixed throughout the whole size range in the air mass. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3754 / 3763

页数：10

共 57 条

[41] Characterization of an Aerodyne Aerosol Mass Spectrometer (AMS): Intercomparison with other aerosol instruments [J].

Takegawa, N ;

Miyazaki, Y ;

Kondo, Y ;

Komazaki, Y ;

Miyakawa, T ;

Jimenez, JL ;

Jayne, JT ;

Worsnop, DR ;

Allan, JD ;

Weber, RJ .

AEROSOL SCIENCE AND TECHNOLOGY, 2005, 39 (08) :760-770

[42] Performance of an Aerodyne Aerosol Mass Spectrometer (AMS) during Intensive Campaigns in China in the Summer of 2006 [J].

Takegawa, N. ;

Miyakawa, T. ;

Watanabe, M. ;

Kondo, Y. ;

Miyazaki, Y. ;

Han, S. ;

Zhao, Y. ;

van Pinxteren, D. ;

Bruggemann, E. ;

Gnauk, T. ;

Herrmann, H. ;

Xiao, R. ;

Deng, Z. ;

Hu, M. ;

Zhu, T. ;

Zhang, Y. .

AEROSOL SCIENCE AND TECHNOLOGY, 2009, 43 (03) :189-204

[43] Aerosol chemical characteristics from sampling conducted on the Island of Jeju, Korea during ACE Asia [J].

Topping, D ;

Coe, H ;

McFiggans, G ;

Burgess, R ;

Allan, J ;

Alfarra, MR ;

Bower, K ;

Choularton, TW ;

Decesari, S ;

Facchini, MC .

ATMOSPHERIC ENVIRONMENT, 2004, 38 (14) :2111-2123

[44]

Turpin BJ, 2001, AEROSOL SCI TECH, V35, P602, DOI 10.1080/02786820152051454

[45]

VERMA RL, 2006, J GEOPHYS RES UNPUB

[46] Size-selective nonrefractory ambient aerosol measurements during the Particulate Matter Technology Assessment and Characterization Study - New York 2004 Winter Intensive in New York City [J].

Weimer, Silke ;

Drewnick, Frank ;

Hogrefe, Olga ;

Schwab, James J. ;

Rhoads, Kevin ;

Orsini, Douglas ;

Canagaratna, Manjula ;

Worsnop, Douglas R. ;

Demerjian, Kenneth L. .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2006, 111 (D18)

[47]

YANG J, 2002, SO2 LONG MEDIUM TERM

[48]

Yang J., 2002, POLLUTION CONTROL ST

[49] Size distributions and formation of ionic species in atmospheric particulate pollutants in Beijing, China: 1 - inorganic ions [J].

Yao, XH ;

Lau, APS ;

Fang, M ;

Chan, CK ;

Hu, M .

ATMOSPHERIC ENVIRONMENT, 2003, 37 (21) :2991-3000

[50] Size distributions and formation of ionic species in atmospheric particulate pollutants in Beijing, China: 2 - dicarboxylic acids [J].

Yao, XH ;

Lau, APS ;

Fang, M ;

Chan, CK ;

Hu, M .

ATMOSPHERIC ENVIRONMENT, 2003, 37 (21) :3001-3007

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