Chemical composition of atmospheric aerosols from Zhenbeitai, China, and Gosan, South Korea, during ACE‐Asia

[1] Studies were conducted as part of Asian Pacific Regional Aerosol Characterization Experiment (ACE-Asia) to characterize the major ion and elemental composition of aerosol particle samples collected at Gosan, an ACE-Asia supersite (GOS, Korea, total suspended particle or TSP samples) and at Zhenbeitai (ZBT, China, TSP and particles < 2.5 mm diameter or PM2.5 samples), a site closer to the sources for Asia dust. The concentrations of 24 elements in the ZBT PM2.5 samples were correlated with Al (an indicator of mineral dust), and the ratios of these elements to Al were similar to those in a loess certified reference material, but a second group of elements was enriched over crustal proportions most likely as a result of pollution emissions. The concentrations of various water-soluble (WS) cations (Na + ,K + ,C a 2+ ,M g 2+ ) also were generally well correlated with Al in both the ZBT and GOS samples, with the exception being WS K + at ZBT, where biomass burning may have had an effect. The percentage of calcium that was soluble approached 100% at ZBT versus � 60% at GOS, and the ratio WS Ca 2+ /Al also was higher at ZBT. The molar ratio of sulfate to WS Ca 2+ was � 0.1 at ZBT but increased to near unity at GOS, where the aerosol nitrate/WS Ca 2+ ratio was tenfold to hundredfold higher compared with ZBT, presumably because of anthropogenic influences. The observed differences in aerosol characteristics between sites can only be explained as the end product of different source contributions combined with complex processes involving gas-particle conversion, size-dependent fractionation, and aerosol mixing. INDEX TERMS: 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801); 0330 Atmospheric Composition and Structure: Geochemical cycles; 0365 Atmospheric Composition and Structure: Troposphere—composition and chemistry; 0368 Atmospheric Composition and Structure: Troposphere—constituent transport and chemistry; 9320 Information Related to Geographic Region: Asia; KEYWORDS: aerosol, biogeochemistry, atmospheric dust, air pollution, Asia

[1]  J. Prospero,et al.  Relationships among aerosol constituents from Asia and the North Pacific during PEM-West A , 1996 .

[2]  S. Warren,et al.  Oceanic phytoplankton, atmospheric sulphur, cloud albedo and climate , 1987, Nature.

[3]  R M Harrison,et al.  Particulate matter in the atmosphere: which particle properties are important for its effects on health? , 2000, The Science of the total environment.

[4]  Li Xu,et al.  The composition of individual aerosol particle in the troposphere and stratosphere over Xianghe (39.45°N, 117.0°E), China , 2001 .

[5]  Soon-Ung Park,et al.  Transport and evolution of a winter-time Yellow sand observed in Korea , 2001 .

[6]  S. Taylor,et al.  The geochemical evolution of the continental crust , 1995 .

[7]  J. Prospero,et al.  Variations in the size distribution of non‐sea‐salt sulfate aerosol in the marine boundary layer at Barbados: Impact of African dust , 1998 .

[8]  J. Nriagu,et al.  Quantitative assessment of worldwide contamination of air, water and soils by trace metals , 1988, Nature.

[9]  Henry E. Fuelberg,et al.  Uptake of nitrate and sulfate on dust aerosols during TRACE‐P , 2003 .

[10]  Frank McGovern,et al.  The 2nd Aerosol Characterization Experiment (ACE-2): general overview and main results , 2000 .

[11]  Glenn E. Shaw,et al.  Transport of Asian Desert Aerosol to the Hawaiian Islands , 1980 .

[12]  F. Armstrong,et al.  Chemical Oceanography , 1959, Nature.

[13]  D. Harvan,et al.  Comparison of mass spectrometric methods for trace level screening of hexachlorobenzene and trichlorophenol in human blood serum and urine. , 1984, Analytical chemistry.

[14]  O. Torres,et al.  ENVIRONMENTAL CHARACTERIZATION OF GLOBAL SOURCES OF ATMOSPHERIC SOIL DUST IDENTIFIED WITH THE NIMBUS 7 TOTAL OZONE MAPPING SPECTROMETER (TOMS) ABSORBING AEROSOL PRODUCT , 2002 .

[15]  D. Davis,et al.  Pacific Exploratory Mission‐West A (PEM‐West A): September–October 1991 , 1996 .

[16]  Jimin Sun,et al.  Provenance of loess material and formation of loess deposits on the Chinese Loess Plateau , 2002 .

[17]  J. Prospero,et al.  Long-term record of nss-sulfate and nitrate in aerosols on Midway Island , 2003 .

[18]  L. Eary,et al.  Geochemical factors controlling the mobilization of inorganic constituents from fossil fuel combustion residues: II. Review of the minor elements. , 1990 .

[19]  Itsushi Uno,et al.  Transport of Asian air pollution to North America , 1999 .

[20]  Z. Li,et al.  Gobi dust storms and The Great Green Wall , 1994 .

[21]  X. Y. Zhang,et al.  Sources of Asian dust and role of climate change versus desertification in Asian dust emission: ASIAN DUST SOURCES , 2003 .

[22]  Joseph M. Prospero,et al.  Impact of the North African drought and El Niño on mineral dust in the Barbados trade winds , 1986, Nature.

[23]  R. Newell,et al.  A meteorological overview for the Pacific Exploratory Mission-West Phase B , 1997 .

[24]  G. Carmichael,et al.  Numerical Investigation of the Influence of Mineral Dust on the Tropospheric Chemistry of East Asia , 2000 .

[25]  D. Davis,et al.  The Pacific Exploratory Mission‐West Phase B: February‐March, 1994 , 1997 .

[26]  F. Parungo,et al.  Chemistry of marine aerosols over the western Pacific Ocean , 1990 .

[27]  D. I. Sebacher,et al.  Distribution and geochemistry of aerosols in the tropical north Atlantic troposphere: Relationship to Saharan dust , 1986 .

[28]  L. Eary,et al.  Geochemical factors controlling the mobilization of inorganic constituents from fossil fuel combustion residues , 1990 .

[29]  Yu Qin,et al.  Mineral particles collected in china and japan during the same Asian dust-storm event , 1996 .

[30]  J. Prospero,et al.  Comparisons of trace constituents from ground stations and the DC-8 aircraft during PEM-West B , 1997 .

[31]  Richard Arimoto,et al.  Atmospheric trace elements over source regions for Chinese dust: concentrations, sources and atmospheric deposition on the Loess plateau , 1993 .

[32]  Philip B. Russell,et al.  ACE-ASIA Regional Climatic and Atmospheric Chemical Effects of Asian Dust and Pollution , 2004 .

[33]  Young-Joon Kim,et al.  An overview of ACE‐Asia: Strategies for quantifying the relationships between Asian aerosols and their climatic impacts , 2003 .

[34]  S. Pandis,et al.  Removal of sulphur from the marine boundary layer by ozone oxidation in sea-salt aerosols , 1992, Nature.

[35]  J. Osán,et al.  Chemical speciation of individual atmospheric particles using low-Z electron probe X-ray microanalysis characterizing "Asian Dust" deposited with rainwater in Seoul, Korea , 2001 .

[36]  M. Nishikawa,et al.  Preparation and evaluation of certified reference materials for Asian mineral dust , 2000 .

[37]  K. Pye.  Aeolian dust and dust deposits , 1987 .

[38]  G. Kukla,et al.  The long-term paleomonsoon variation recorded by the loess-paleosol sequence in Central China , 1990 .

[39]  François Dulac,et al.  Control of atmospheric export of dust from North Africa by the North Atlantic Oscillation , 1997, Nature.

[40]  M. Andreae.  Soot Carbon and Excess Fine Potassium: Long-Range Transport of Combustion-Derived Aerosols , 1983, Science.

[41]  J. Prospero,et al.  Methane sulfonic acid in the marine atmosphere , 1983 .

[42]  J. Prospero,et al.  Long-Range Atmospheric Transport of Soil Dust from Asia to the Tropical North Pacific: Temporal Variability , 1980, Science.

[43]  Peter V. Hobbs,et al.  Aerosol-cloud interactions , 1993 .

[44]  Ikuko Mori,et al.  Change in size distribution and chemical composition of kosa (Asian dust) aerosol during long-range transport , 2003 .

[45]  J. Coakley,et al.  Climate Forcing by Anthropogenic Aerosols , 1992, Science.

[46]  Inez Y. Fung,et al.  Contribution to the atmospheric mineral aerosol load from land surface modification , 1995 .

[47]  R. Nadkarni.  Applications of microwave oven sample dissolution in analysis , 1984 .

[48]  P. Hobbs.  Chapter 2 Aerosol-Cloud Interactions , 1993 .

[49]  Y. Hashimoto,et al.  Atmospheric fingerprints of East Asia, 1986–1991. An urgent record of aerosol analysis by the jack network , 1994 .

[50]  R. Feely,et al.  Atmospheric iron inputs and primary productivity: Phytoplankton responses in the North Pacific , 1991 .

[51]  J. Prospero,et al.  Marine biogenic and anthropogenic contributions to non‐sea‐salt sulfate in the marine boundary layer over the North Atlantic Ocean , 2002 .

[52]  Barry J. Huebert,et al.  International Global Atmospheric Chemistry (IGAC) Project's First Aerosol Characterization Experiment (ACE 1): Overview , 1998 .

[53]  Y. Chung,et al.  Analysis of dust storms observed in Mongolia during 1937-1999 , 2003 .

[54]  N. Kubilay,et al.  Organic nitrogen in rain and aerosol in the eastern Mediterranean atmosphere: An association with atmospheric dust , 2003 .

[55]  J. Prospero,et al.  Water-soluble potassium, calcium, and magnesium in the aerosols over the tropical North Atlantic , 1980 .

[56]  S. Gong,et al.  Characterization and Temporal Variation of Asian Dust Aerosol from a Site in the Northern Chinese Deserts , 2003 .