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    請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/28990


    標題: 泰國清邁安康山偏遠大氣生質燃燒氣膠化學特徵研究
    Chemical Characterization of Biomass-Burning Particles in Remote air at Doi Ang Khang, Chiang Mai Province, Thailand
    作者: Ritthipond Laitun
    貢獻者: 環境工程與科學系
    蔡瀛逸
    關鍵字: 粒徑分佈
    清邁
    左旋葡萄醣
    生質燃燒
    糖醇類
    size distribution
    Chiang Mai
    levoglucosan
    biomass burning
    sugar alcohol
    日期: 2015
    上傳時間: 2015-10-21 17:07:36 (UTC+8)
    摘要: Biomass burning is recognized as one of the major factors affecting the regional-to-global weather and climate. The aerosol samples in this study were collected at Doi Ang Khang, Chiang Mai, Thailand from 23 Feb.–7 April 2013, corresponding to the monsoonal dry season and a maximum in agricultural and forest fire activity, by using MOUDI and Nano MOUDI. Characteristics and provenance of anhydrosugars (levoglucosan, mannosan and galactosan), sugars (galactose, glucose and mannose), sugar alcohols (glycerol, erythritol, xylitol, mannitol, myo-inositol and arabitol) in aerosol were investigated. Levoglucosan, glucose and myo-inositol were the most dominant anhydrosugar, sugar, and sugar alcohol, respectively. The dominant concentration peaks occurred for levoglucosan, glucose and myo-inositol were in the size ranges of 0.1–2.5 μm, 0.5–1.0 μm, and 0.2–1.0 μm, respectively. High concentration of levoglucosan was found at nighttime. The levoglucosan/mannosan mass ratio reported in this study was 3.21. Levoglucosan was found to be the most useful marker for biomass burning emitted from forest fire event in the mountain around Chiang Mai. Principle component analysis showed an accordant result indicated photochemical products from biomass burning, biogenic activity and vehicles exhaust were mainly sources of PM at Doi Ang Khang, Chiang Mai, Thailand.
    關聯: 校外公開:2018-07-31,校內公開:2015-09-11,學年度:103,102頁
    顯示於類別:[環境工程與科學系(所)] 博碩士論文

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