Characteristics of KOSA particles flying away from China coast in the free troposphere and their changes during the transport to southwestern Japan

• Project/Area Number: 18510015
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Prefectural University of Kumamoto
• Principal Investigator: DAIZHOU Zhang Prefectural University of Kumamoto, 環境共生学部, 准教授 (90322726)
• Co-Investigator(Kenkyū-buntansha): KOGA Minoru 熊本県立大学, 環境共生学部, 教授 (40131916)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥660,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2006: ¥1,300,000 (Direct Cost: ¥1,300,000)
• Keywords: 環境分析 / 大気現象 / アジア黄砂 / 大気環境

Research Abstract

中国東部沿岸地域から大陸を離れる自然起源の黄砂粒子は、人為的な大気汚染物質をあまり含まらなく、比較的に清潔であった。西日本に飛来するまでに海塩との結合、硫酸塩・硝酸塩・塩酸塩の吸収により変質が生じた。海塩との結合により粒子の大きさは大きく変われ、硫酸塩・硝酸塩・塩酸塩の吸収により吸水能力は大きく向上された。これらの変化と変質の結果、黄砂粒子の地面(海面)への落下過程も、雲粒作りの役目も、素の黄砂粒子と比べ、大きく変わった。

Research Products

• [Journal Article] Effect of sea salt on dust settling to the ocean (2008)
  • Author(s): Daizhou Zhang
  • Journal Title: Tellus 68B Pages: 641-646
  • Peer Reviewed
• [Journal Article] Effect of sea salt on dust settling to the ocean (2008)
  • Author(s): Daizhou Zhang
  • Journal Title: Tellus 60(掲載確定)
  • Peer Reviewed
• [Journal Article] Size distribution and estimated carcinogenic potential of particulate polycyclic aromatic hydrocarbons (PAHs) collected at a downtown site in Kumamoto, Japan in spring (2007)
  • Author(s): Hezhe Ji, Daizhou Zhang, Ryouta Shinohara
  • Journal Title: Journal of Health Science 53(6) Pages: 700-707
  • Peer Reviewed
• [Journal Article] Particulate polycyclic aromatic hydrocarbons in the urban atmosphere of Kumamoto, Japan under mild weather (2007)
  • Author(s): Hezhe Ji, Daizhou Zhang, Ryouta Shinohara, Wataru Fujiie, Minoru Koga, Zongbo Shi, Kei Nomiyama
  • Journal Title: Earozoru Kenkyu 22 Pages: 135-142
  • NAID: 10021918262
  • Peer Reviewed
• [Journal Article] Size Distribution and Estimated Carcinogenic Potential of Particulate Polycyclic Aromatic Hydrocarbons(PAHs)Collected at a Downtown Site in Kumamoto, Japan in Spring (2007)
  • Author(s): Hezhe Ji, Daizhou Zhang, Ryotai Shinohara
  • Journal Title: Journal of Health Science 53 Pages: 700-707
  • Peer Reviewed
• [Journal Article] Particulate Polycyclic Aromatic Hydrocarbons in the Urban Atmosphere of Kumamoto, Japan under Mild Weather (2007)
  • Author(s): Hezhe Ji, Daizhou Zhang, その他5名
  • Journal Title: Earozoru Kenkyu 22 Pages: 135-142
  • NAID: 10021918262
  • Peer Reviewed
• [Journal Article] Comparison of size changes of Asian dust particles caused by sea salt and sulfate (2006)
  • Author(s): Daizhou Zhang, Yasunobu Iwasaka
  • Journal Title: J. Meteor. Soc. Japan 84(5) Pages: 939-947
  • Peer Reviewed
• [Journal Article] 黄砂粒子とその海洋大気中での変化 : 最近の電子顕微鏡による観察結果 (2006)
  • Author(s): 張代洲
  • Journal Title: 空気清浄 第44巻 Pages: 240-247
  • NAID: 10018792000
  • Peer Reviewed
• [Journal Article] Comparison of size changes of Asian dust particles caused by sea salt and sulfate (2006)
  • Author(s): Daizhou Zhang, Yasunobu Iwasaka
  • Journal Title: Journal of the Meteorological Society of Japan 84・5 Pages: 939-947
• [Journal Article] 黄砂粒子とその海洋大気中での変化 : 最近の電子顕微鏡による観察結果 (2006)
  • Author(s): 張 代洲
  • Journal Title: 空気清浄 44・4 Pages: 240-247
  • NAID: 10018792000
• [Presentation] 大陸由来のエアロゾルのエージングと変質 (2008)
  • Author(s): 張代洲
  • Organizer: 日本エアロゾル学会2008年エアロゾルシンポジウム 東アジアから輸送されるエアロゾルと日本への影響(招待講演)
  • Year and Date: 2008-11-27
• [Presentation] 大陸由来のエアロゾルのエージングと変質 (2008)
  • Author(s): 張代洲
  • Organizer: 日本エアロゾル学会2008年エアロゾルシンポジウム「東アジアから輸送されるエアロゾルと日本への影響」
  • Place of Presentation: 東京工業大学
  • Year and Date: 2008-11-27
• [Presentation] Aging and mixing of dust during transport : recent results of individual particle analysis (2008)
  • Author(s): Daizhou Zhang
  • Organizer: 3rd International Workshop on Mineral Dust
  • Place of Presentation: Leipzig, Germany
  • Year and Date: 2008-09-15
• [Presentation] Aerosol particle distribution at different altitudes in the boundary layer : observation in Beijing with tethered balloon flights (2008)
  • Author(s): Daizhou Zhang
  • Organizer: 5th Symposium on Aerosol Sci. and Tech. China
  • Place of Presentation: ウルムキ市, 中国
  • Year and Date: 2008-09-03
• [Presentation] Changes of gravitational settling velocity of mineral particles due to sea saltadhering and water vapor condensation (2008)
  • Author(s): Daizhou Zhang
  • Organizer: 第25回エアロゾル科学・技術研究討論会
  • Place of Presentation: 金沢市
  • Year and Date: 2008-08-20
• [Presentation] Aging and Mixing of dust during transport : recent results of individual particle analysis. (2008)
  • Author(s): Daizhou Zhang
  • Organizer: Invited presentation at the 3rd International Workshop on Mineral Dust
  • Place of Presentation: Leipzig, Germany
• [Presentation] Aerosol particle distribution at different altitudes in the boundary layer : observation in Beijing with tethered balloon flights. (2008)
  • Author(s): Daizhou Zhang
  • Organizer: Invited presentation at the 5^<th> Symposium on Aerosol Science and Technology of China
  • Place of Presentation: Urumuqi, China
• [Presentation] Changes of gravitational settling velocity of mineral particles due to sea slat adhering and water vapor condensation. (2008)
  • Author(s): Daizhou Zhang
  • Organizer: The 25th Symposium on Aerosol Science & Technology, Japan Association of Aerosol Science and Technology
  • Place of Presentation: Kanazawa, Japan
• [Presentation] Changes of dust particles influenced by sea salt in the marine atmosphere (2007)
  • Author(s): Daizhou Zhang
  • Organizer: The 3^<rd> International Workshop on Asian Dust and Ocean EcoSystem (ADOES)
  • Place of Presentation: Shangrila, Yunnan Province, China
• [Presentation] Influences of dust particles on chlorine chemistry in the marine atmosphere (2007)
  • Author(s): Daizhou Zhang, Y. Iwasaka
  • Organizer: The 48^<th> Annual Meeting of Japan Society for Atmospheric Environment
  • Place of Presentation: Okayama
• [Presentation] Exploring the variation of alveolar cells influenced by dust particles. (2007)
  • Author(s): Daizhou Zhang
  • Organizer: The 24th Symposium on Aerosol Science & Technology, Japan Association of Aerosol Science and Technology
  • Place of Presentation: Wako, Japan
• [Presentation] Changes of Dust Particles Influenced by Sea Salt in the Marine Atmosphere (2007)
  • Author(s): Daizhou Zhang
  • Organizer: The 3rd International Workshop on Asian Dust and Ocean Ecosystem(ADOES)
  • Place of Presentation: Shangrila,China
• [Presentation] Dry settling of dust particles in the marine atmosphere. (2007)
  • Author(s): Daizhou Zhang, and Y.lwasaka
  • Organizer: 第24回エアロゾル科学・技術研究討論会
  • Place of Presentation: 埼玉県和光市
• [Presentation] Influences of dust particles on chlorine chemistry in the marine atmosphere. (2007)
  • Author(s): Daizhou Zhang and Y.Iwasaka
  • Organizer: 第48回大気環境学会
  • Place of Presentation: 岡山市
• [Presentation] Size change of Asian dust particles with respect to their sea salt and sulfate contents. (2006)
  • Author(s): Daizhou Zhang, Yasunobu Iwasaka
  • Organizer: Second Korea-Japan-China Joint Conference on Meteorology
  • Place of Presentation: Goyang, Korea
• [Presentation] The evolution of size distribution during the passage of dust-loading low pressures in southwestern Japan (2006)
  • Author(s): Daizhou Zhang, Yasunobu Iwasaka, Atsushi Matsuki, Kazunori Ueno, Tatsuya Matsuzaki
  • Organizer: Symposium of Atmospheric Environmental Impacts of Aerosol in East Asia
  • Place of Presentation: Kyoto