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J-GLOBAL ID：202202260276185956   整理番号：22A0560429

中国,南京におけるPM_2.5中の水溶性フミン様物質(HULIS)の光吸収と発生源配分【JST・京大機械翻訳】

Light absorption and source apportionment of water soluble humic-like substances (HULIS) in PM_2.5 at Nanjing, China

著者 (27件)： Bao Mengying (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Bao Mengying (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Bao Mengying (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Zhang Yan-Lin (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Zhang Yan-Lin (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Zhang Yan-Lin (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Cao Fang (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Cao Fang (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Cao Fang (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Lin Yu-Chi (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Lin Yu-Chi (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Lin Yu-Chi (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Hong Yihang (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Hong Yihang (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Hong Yihang (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Fan Meiyi (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Fan Meiyi (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Fan Meiyi (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Zhang Yuxian (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Zhang Yuxian (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Zhang Yuxian (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Yang Xiaoying (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Yang Xiaoying (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Yang Xiaoying (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Xie Feng (Yale-NUIST Center on Atmospheric Environment, Joint International Research Laboratory of Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Xie Feng (Key Laboratory of Meteorological Disaster Ministry of Education (KLME), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China) ,  Xie Feng (School of Applied Meteorology, Nanjing University of Information Science and Technology, Nanjing, 210044, China)
資料名： Environmental Research  (Environmental Research)
巻： 206  ページ： Null  発行年： 2022年 
JST資料番号： D0574A  ISSN： 0013-9351  資料種別： 逐次刊行物 (A)
記事区分： 原著論文  発行国： オランダ (NLD)  言語： 英語 (EN)

抄録/ポイント： 褐色炭素(BrC)の重要な成分としてのフミン様物質(HULIS)は,気候変動において重要な役割を果たす。本研究では,2017年から2018年までの1年間のPM_2.5試料を南京,中国および水溶性HULISで収集し,他の化学種を分析し,季節的変動,光学的性質および可能な発生源を調べた。HULIS濃度は冬に最も高く,夏に最低であった。年間平均HULIS濃度は2.61±1.79μgm-3であり,水溶性有機炭素(WSOC)の45±13%を占めた。365nmのHULIS光吸収係数(Abs_365,HULIS)はWSOCのそれの71±19%を占め,HULISがWSOCの主な光吸収成分であることを示唆した。365nmでのHULISの年間平均Ångstrom吸収指数と質量吸収効率は,5.22±0.77と1.71±0.70m2g-1であった。HULISとレボグルコサンおよびK+との良好な相関は,HULISに対するバイオマス燃焼(BB)影響を示唆した。高濃度のHULISと二次種(例えば,NO_3-,SO_42-,NH_4+,C_2O_42-)が,高い相対湿度の存在下で見出され,強い水相二次HULIS形成を示した。人為的および生物起源前駆体から生産された二次HULISを,陽性マトリックス因数分解(PMF)モデルに基づいて定量し,その結果,化石(55%)および生物起源(45%)の排出源がHULISに大きく寄与することを示した。Fossil燃料燃焼は全年を通してHULIS形成に大きく寄与し,一次HULIS(25%)よりも二次HULIS(30%)が豊富であった。最も強いBBの寄与(39%)が冬に見られ,生物起源のSOAの寄与(32%)が夏に見出された。多重線形回帰(MLR)法を,Abs_365,HULISに対する特異的発生源寄与を得るためにさらに適用し,結果は,強い光吸収発色団が人為的前駆体から生成されることを示した。著者らの結果は,中国の都市域における最大の貢献者,BBに加えて,HULISへの人為的SOAと化石燃料燃焼の寄与を強調する。Copyright 2022 Elsevier B.V., Amsterdam. All rights reserved. Translated from English into Japanese by JST.【JST・京大機械翻訳】

シソーラス用語： 濃度 ,  *光吸収 ,  相対湿度 ,  気候変動 ,  *ヒューミン ,  発色団 ,  化石 ,  都市域 ,  化石燃料 ,  前駆体 ,  化学種 ,  ヘキソース ,  アルドース ,  アンヒドロ糖
準シソーラス用語： *発生源 ,  生物起源 ,  排出源 , 【Automatic Indexing@JST】

著者キーワード (5件)： ブラウンカーボン ,  HULIS ,  光吸収 ,  PMFモデル ,  発生源

分類 (3件)： 人間に対する影響  (EE05050C) ,  その他の汚染原因物質  (SB05040W) ,  環境汚染一般  (SB01000C)

物質索引 (1件)： レボグルコサン

タイトルに関連する用語 (8件)： 中国 ,  南京 ,  水溶性 ,  フミン ,  物質 ,  光吸収 ,  発生源 ,  配分