Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport

© 2016 Elsevier Ltd. The transport of biomass burning (BB) aerosol from Indochina may cause a potential effect on climate change in Southeast Asia, East Asia, and the Western Pacific. Up to now, the understanding of BB aerosol composition modification during long-range transport (LRT) is still very...

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Main Authors: Ming Tung Chuang, Chung Te Lee, Charles C.K. Chou, Guenter Engling, Shih Yu Chang, Shuenn Chin Chang, Guey Rong Sheu, Neng Huei Lin, Khajornsak Sopajaree, You Jia Chang, Guo Jun Hong
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Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/55642
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spelling th-cmuir.6653943832-556422018-09-05T03:02:36Z Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport Ming Tung Chuang Chung Te Lee Charles C.K. Chou Guenter Engling Shih Yu Chang Shuenn Chin Chang Guey Rong Sheu Neng Huei Lin Khajornsak Sopajaree You Jia Chang Guo Jun Hong Earth and Planetary Sciences Environmental Science © 2016 Elsevier Ltd. The transport of biomass burning (BB) aerosol from Indochina may cause a potential effect on climate change in Southeast Asia, East Asia, and the Western Pacific. Up to now, the understanding of BB aerosol composition modification during long-range transport (LRT) is still very limited due to the lack of observational data. In this study, atmospheric aerosols were collected at the Suthep/Doi Ang Khang (DAK) mountain sites in Chiang Mai, Thailand and the Lulin Atmospheric Background Station (Mt. Lulin) in central Taiwan from March to April 2010 and from February to April 2013, respectively. During the study period, an upwind and downwind relationship between the Suthep/DAK and Lulin sites (2400 km apart) was validated by backward trajectories. Comprehensive aerosol properties were resolved for PM2.5water-soluble inorganic ions, carbonaceous content, water-soluble/insoluble organic carbon (WSOC/WIOC), dicarboxylic acids and their salts (DCAS), and anhydrosugars. A Modification Factor (MF) is proposed by employing non-sea-salt potassium ion (nss-K+) or fractionalized elemental carbon evolved at 580 °C after pyrolized OC correction (EC1-OP) as a BB aerosol tracer to evaluate the mass fraction changes of aerosol components from source to receptor regions during LRT. The MF values of nss-SO42-, NH4+, NO3-, OC1 (fractionalized organic carbon evolved from room temperature to 140 °C), OP (pyrolized OC fraction), DCAS, and WSOC were above unity, which indicated that these aerosol components were enhanced during LRT as compared with those in the near-source region. In contrast, the MF values of anhydrosugars ranged from 0.1 to 0.3, indicating anhydrosugars have degraded during LRT. 2018-09-05T02:59:11Z 2018-09-05T02:59:11Z 2016-07-01 Journal 18732844 13522310 2-s2.0-84966453580 10.1016/j.atmosenv.2016.03.042 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84966453580&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/55642
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Earth and Planetary Sciences
Environmental Science
spellingShingle Earth and Planetary Sciences
Environmental Science
Ming Tung Chuang
Chung Te Lee
Charles C.K. Chou
Guenter Engling
Shih Yu Chang
Shuenn Chin Chang
Guey Rong Sheu
Neng Huei Lin
Khajornsak Sopajaree
You Jia Chang
Guo Jun Hong
Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport
description © 2016 Elsevier Ltd. The transport of biomass burning (BB) aerosol from Indochina may cause a potential effect on climate change in Southeast Asia, East Asia, and the Western Pacific. Up to now, the understanding of BB aerosol composition modification during long-range transport (LRT) is still very limited due to the lack of observational data. In this study, atmospheric aerosols were collected at the Suthep/Doi Ang Khang (DAK) mountain sites in Chiang Mai, Thailand and the Lulin Atmospheric Background Station (Mt. Lulin) in central Taiwan from March to April 2010 and from February to April 2013, respectively. During the study period, an upwind and downwind relationship between the Suthep/DAK and Lulin sites (2400 km apart) was validated by backward trajectories. Comprehensive aerosol properties were resolved for PM2.5water-soluble inorganic ions, carbonaceous content, water-soluble/insoluble organic carbon (WSOC/WIOC), dicarboxylic acids and their salts (DCAS), and anhydrosugars. A Modification Factor (MF) is proposed by employing non-sea-salt potassium ion (nss-K+) or fractionalized elemental carbon evolved at 580 °C after pyrolized OC correction (EC1-OP) as a BB aerosol tracer to evaluate the mass fraction changes of aerosol components from source to receptor regions during LRT. The MF values of nss-SO42-, NH4+, NO3-, OC1 (fractionalized organic carbon evolved from room temperature to 140 °C), OP (pyrolized OC fraction), DCAS, and WSOC were above unity, which indicated that these aerosol components were enhanced during LRT as compared with those in the near-source region. In contrast, the MF values of anhydrosugars ranged from 0.1 to 0.3, indicating anhydrosugars have degraded during LRT.
format Journal
author Ming Tung Chuang
Chung Te Lee
Charles C.K. Chou
Guenter Engling
Shih Yu Chang
Shuenn Chin Chang
Guey Rong Sheu
Neng Huei Lin
Khajornsak Sopajaree
You Jia Chang
Guo Jun Hong
author_facet Ming Tung Chuang
Chung Te Lee
Charles C.K. Chou
Guenter Engling
Shih Yu Chang
Shuenn Chin Chang
Guey Rong Sheu
Neng Huei Lin
Khajornsak Sopajaree
You Jia Chang
Guo Jun Hong
author_sort Ming Tung Chuang
title Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport
title_short Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport
title_full Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport
title_fullStr Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport
title_full_unstemmed Aerosol transport from Chiang Mai, Thailand to Mt. Lulin, Taiwan - Implication of aerosol aging during long-range transport
title_sort aerosol transport from chiang mai, thailand to mt. lulin, taiwan - implication of aerosol aging during long-range transport
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84966453580&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55642
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