globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2014.02.040
Scopus记录号: 2-s2.0-84908333500
论文题名:
Aerial observations of air masses transported from East Asia to the Western Pacific: Vertical structure of polluted air masses
作者: Hatakeyama S; , Ikeda K; , Hanaoka S; , Watanabe I; , Arakaki T; , Bandow H; , Sadanaga Y; , Kato S; , Kajii Y; , Zhang D; , Okuyama K; , Ogi T; , Fujimoto T; , Seto T; , Shimizu A; , Sugimoto N; , Takami A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 97
起始页码: 456
结束页码: 461
语种: 英语
英文关键词: Aerial observation ; Asian dust ; East China Sea ; Ionic aerosol component ; Metallic element
Scopus关键词: Aerial observations ; Aerosol components ; Asian dust ; East China Sea ; Metallic elements ; aluminum ; calcium ion ; chemical compound ; iron ; lead ; sulfate ; aerosol composition ; air mass ; airborne survey ; atmospheric pollution ; atmospheric transport ; boundary layer ; concentration (composition) ; dust ; haze ; marine atmosphere ; spatial distribution ; vertical profile ; aerosol ; air analysis ; air pollutant ; air pollution ; altitude ; Article ; atmosphere ; atmospheric transport ; boundary layer ; chemical structure ; China ; depolarization ; mass ; mass spectrometry ; mineral dust ; sea ; troposphere ; East China Sea ; Far East ; Pacific Ocean ; Pacific Ocean (West)
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: There has been only limited information about the vertical chemical structure of the atmosphere, so far. We conducted aerial observations on 11, 12, and 14 December 2010 over the northern part of the East China Sea to analyze the spatial distribution of atmospheric pollutants from East Asia and to elucidate transformation processes of air pollutants during the long-range transport. On 11 December, a day on which Asian dust created hazy conditions, the average PM10 concentration was 40.69μgm-3, and we observed high concentrations of chemical components such as Ca2+, NO3 -, SO4 2-, Al, Ca, Fe, and Zn. The height of the boundary layer was about 1200m, and most species of pollutants (except for dust particles and SO2) had accumulated within the boundary layer. In contrast, concentrations of pollutants were low in the boundary layer (up to 1000m) on 12 December because clean Pacific air from the southeast had diluted the haze. However, we observed natural chemical components (Na+, Cl-, Al, Ca, and Fe) at 3000m, the indication being that dust particles, including halite, were present in the lower free troposphere. On 14 December, peak concentrations of SO2 and black carbon were measured within the boundary layer (up to 700m) and at 2300m. The concentrations of anthropogenic chemical components such as NO3 -, NH4 +, and Zn were highest at 500m, and concentrations of both anthropogenic and natural chemical components (SO4 2-, Pb, Ca2+, Ca, Al, and Fe) were highest at 2000m. Thus, it was clearly indicated that the air above the East China Sea had a well-defined, layered structure below 3000m. 11 Ca2+, SO4 2-, Al, Ca, Fe, and Zn in aerosol were high with Asian dust.12 in oceanic air. © 2014 The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80578
Appears in Collections:气候变化事实与影响

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作者单位: Department of Environmental and Natural Resource Science, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo, Japan; Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, 1 Chihara, Nishihara-Town, Okinawa, Japan; Department of Applied Chemistry, Faculty of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Nakaku, Sakai, Osaka, Japan; Faculty of Urban Environmental Sciences, Division of Applied Chemistry, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji, Tokyo, Japan; Department of Environmental Resources, Faculty of Environmental and oSymbiotic Sciences, Prefectural University of Kumamoto, 3-1-100 Tsukide, Higashi-ku, Kumamoto, Japan; Department of Chemical Engineering, Faculty of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima, Japan; Department of Applied Chemistry, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran-shi, Hokkaido, Japan; School of Natural System, College of Science and Engineering, Kanazawa University, Kakuma-cho, Kanazawa, Ishikawa, Japan; National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, Japan

Recommended Citation:
Hatakeyama S,, Ikeda K,, Hanaoka S,et al. Aerial observations of air masses transported from East Asia to the Western Pacific: Vertical structure of polluted air masses[J]. Atmospheric Environment,2014-01-01,97
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