Multielemental analysis and characterization of fine aerosols at several key ACE-Asia sites

被引:54
作者
Cohen, DD
Garton, D
Stelcer, E
Hawas, O
Wang, T
Poon, S
Kim, J
Choi, BC
Oh, SN
Shin, HJ
Ko, MY
Uematsu, M
机构
[1] Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia
[2] Hong Kong Polytech Univ, Dept Civil & Struct Engn, Hong Kong, Hong Kong, Peoples R China
[3] Meteorol Res Inst, Seoul 156720, South Korea
[4] Univ Tokyo, Ocean Res Inst, Ctr Int Cooperat, Nakano Ku, Tokyo 1648639, Japan
关键词
PM2.5; PM10; aerosols; fine particle characterization; Asian region; ACE-Asia; IBA techniques;
D O I
10.1029/2003JD003569
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
PM2.5 and PM10 particle size fractions were measured every Wednesday and Sunday for an 18-month period from 1 January 2001 at three key ACE-Asia sites: Hong Kong, Cheju Island in southern Korea, and Sado Island in Japan. Median 24 hour PM2.5 mass loadings of 29, 16, and 9.1 mug/m(3) and coarse mass loadings of 33, 14, and 11 mug/m(3) were measured at Hong Kong, Cheju, and Sado Island sites, respectively, during the study period. The corresponding maximum PM2.5 and coarse mass values for the three sites were 109, 81, and 78 mug/m(3) and 101, 162, and 253 mug/m(3), respectively. Accelerator-based ion beam analysis (IBA) techniques were used to quantify major components as well as significant trace elements. These included total hydrogen, black carbon, F, Na, Al, Si, P, S, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, and Pb, with detection limits close to or below 1 ng/m(3). The average PM2.5 percentage composition by weight across the three sites was estimated to be around (8.4 +/- 4)% black carbon, (7.7 +/- 7)% soil, (43 +/- 14)% ammonium sulfate, (11 +/- 16)% organic matter, (10 +/- 12)% salinity, and (0.6 +/- 0.3)% trace elements. Soil fingerprints for the east Asian region were generated using oxides of measured Al, Si, K, Ca, Ti, Mn, and Fe concentrations. The coarse fraction was dominated by wind blown soil (23%) and sea salts (48%). [PM10/PM2.5] mass ratios were typically (2.1 +/- 0.4) averaged across all sites for the whole year. [PM10/PM2.5] mass ratios for the 21 IBA elements analyzed were also provided. This quantitative data providing both masses and dates over an 18-month period provide useful input for aerosol transport modeling for the east Asia region.
引用
收藏
页码:D19S121 / 18
页数:18
相关论文
共 43 条
[1]  
ALBRITTON DL, 2001, 3 IPCC
[2]  
[Anonymous], 1996, CLIMATE CHANGE SCI C
[3]   Seasonal source-receptor relationships in Asia [J].
Arndt, RL ;
Carmichael, GR ;
Roorda, JM .
ATMOSPHERIC ENVIRONMENT, 1998, 32 (08) :1397-1406
[4]   International Global Atmospheric Chemistry (IGAC) project's first aerosol characterization experiment (ACE 1): Overview [J].
Bates, TS ;
Huebert, BJ ;
Gras, JL ;
Griffiths, FB ;
Durkee, PA .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1998, 103 (D13) :16297-16318
[5]   Global gridded inventories of anthropogenic emissions of sulfur and nitrogen [J].
Benkovitz, CM ;
Scholtz, MT ;
Pacyna, J ;
Tarrason, L ;
Dignon, J ;
Voldner, EC ;
Spiro, PA ;
Logan, JA ;
Graedel, TE .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1996, 101 (D22) :29239-29253
[6]   Seasonal variation of aerosol composition at Cheju Island, Korea [J].
Carmichael, GR ;
Zhang, Y ;
Chen, LL ;
Hong, MS ;
Ueda, H .
ATMOSPHERIC ENVIRONMENT, 1996, 30 (13) :2407-2416
[7]   Case study of the effects of atmospheric aerosols and regional haze on agriculture: An opportunity to enhance crop yields in China through emission controls? [J].
Chameides, WL ;
Yu, H ;
Liu, SC ;
Bergin, M ;
Zhou, X ;
Mearns, L ;
Wang, G ;
Kiang, CS ;
Saylor, RD ;
Luo, C ;
Huang, Y ;
Steiner, A ;
Giorgi, F .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1999, 96 (24) :13626-13633
[8]   Mineral base-cation deposition in Asia [J].
Chang, YS ;
Arndt, RL ;
Carmichael, GR .
ATMOSPHERIC ENVIRONMENT, 1996, 30 (13) :2417-2427
[9]   Chemical characteristics of aerosols at coastal station in Hong Kong. I. Seasonal variation of major ions, halogens and mineral dusts between 1995 and 1996 [J].
Cheng, ZL ;
Lam, KS ;
Chan, LY ;
Wang, T ;
Cheng, KK .
ATMOSPHERIC ENVIRONMENT, 2000, 34 (17) :2771-2783
[10]  
China National Environmental Monitoring Centre, 1994, ATL SOIL ENV BACKGR