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Transboundary Secondary Organic Aerosol in Western Japan Indicated by the δ<sup>13</sup>C of Water-Soluble Organic Carbon and the <i>m</i>/<i>z</i> 44 Signal in Organic Aerosol Mass Spectra
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- Masahiko Hayashi
- Department of Earth System Science, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
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- Yasuhiro Sadanaga
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuencho, Naka-ku, Sakai, Osaka 599-8531, Japan
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- Keiichiro Hara
- Department of Earth System Science, Faculty of Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan
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- Naoki Kaneyasu
- National Institute of Advanced Industrial Science and Technology, 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
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- Kei Sato
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
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- Takemitsu Arakaki
- Department of Chemistry, Biology and Marine Science, Faculty of Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa 903-0213, Japan
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- Toshihide Hikida
- Shoreline Science Research Inc., 3-12-7 Owada-machi, Hachioji, Tokyo 192-0045, Japan
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- Akio Shimono
- Shoreline Science Research Inc., 3-12-7 Owada-machi, Hachioji, Tokyo 192-0045, Japan
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- Satoshi Irei
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
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- Akinori Takami
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan
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- Shiro Hatakeyama
- Agricultural Department, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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- Hiroshi Bandow
- Department of Applied Chemistry, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuencho, Naka-ku, Sakai, Osaka 599-8531, Japan
Bibliographic Information
- Published
- 2014-05-15
- Resource Type
- journal article
- Rights Information
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- http://pubs.acs.org/page/policy/authorchoice_termsofuse.html
- DOI
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- 10.1021/es405362y
- 10.48550/arxiv.1309.1836
- Publisher
- American Chemical Society (ACS)
Search this article
Description
Field studies were conducted in the winter of 2010 at two rural sites and an urban site in western Japan, and filter samples of total suspended particulate matter were collected every 24-h and analyzed for concentration and stable carbon isotope ratio (delta13C) of low volatile water-soluble organic carbon (LV-WSOC). Concentration of major chemical species in fine aerosol (<1.0 micron) was also measured in real time by Aerodyne aerosol mass spectrometers. Oxidation state of organic aerosol was evaluated using the proportion of signal at m/z 44 (fragment ions of carboxyl group) to the sum of all m/z signals of organic mass spectra (f44). Analyses show a high correlation between LV-WSOC and m/z 44 concentrations, suggesting that the LV-WSOC is likely associated with water soluble carboxylic acids in the fine aerosol. Plots of delta13C of LV-WSOC versus f44 exhibit systematic trends at the rural sites and random variation at the urban site. The systematic trends qualitatively agree with a simple binary mixture model of secondary organic aerosol and background LV-WSOC that has delta13C of -17 permil or higher and f44 of approximately 0.06, respectively. Comparison with references suggests that the source of background LV-WSOC is likely biomass burning of C4 plants.
The original manuscript has 36 pages with 0 table and 5 figures
Journal
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- Environmental Science & Technology
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Environmental Science & Technology 48 (11), 6273-6281, 2014-05-15
American Chemical Society (ACS)
