气候变化领域集成服务门户(CCPortal): Atmospheric Brown Carbon on the Tibetan Plateau: Regional Differences in Chemical Composition and Light Absorption Properties

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DOI	10.1021/acs.estlett.2c00016
	Atmospheric Brown Carbon on the Tibetan Plateau: Regional Differences in Chemical Composition and Light Absorption Properties
	Xu, Jianzhong; Hettiyadura, Anusha Priyadarshani Silva; Liu, Yanmei; Zhang, Xinghua; Kang, Shichang; Laskin, Alexander
通讯作者	Laskin, A (通讯作者)，Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA. ; Xu, JZ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryopher Sci, Lanzhou 730000, Peoples R China. ; Laskin, A (通讯作者)，Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA.
发表日期	2022
ISSN	2328-8930
起始页码	219
结束页码	225
卷号	9 期号:3
英文摘要	Fine particulate matter (PM2.5) filter samples were collected from two high-altitude remote sites located in the southern (QOMS) and northern (WLG) regions of the Tibetan Plateau (TP) to explore the regional differences in brown carbon (BrC) properties. Chemical differences in BrC composition representative of these two areas were inferred from molecular-level analysis of the PM2.5 samples using high-performance liquid chromatography coupled with photodiode array and high-resolution mass spectrometry detectors. The results show that more polar BrC chromophores were abundant in QOMS samples, while contributions from polar and less polar chromophores were comparable in WLG samples. A higher mass absorption coefficient of BrC was observed at QOMS than at WLG. Strong BrC chromophores in QOMS samples were identified as oxygenated aromatics and nitrophenol compounds, while organosulfate compounds were found in the WLG sample. The results of this study indicate regional differences in BrC chromophores and provide insights into their sources and chemical processes, which should be considered for predictive understanding and modeling of the radiative forcing of aerosol in the TP area.
关键词	SECONDARY ORGANIC AEROSOL MOLECULAR COMPOSITION OPTICAL-PROPERTIES FINE PARTICLES INSIGHTS ORGANOSULFATES CHEMISTRY TRANSPORT EXTRACTS BLACK
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000767158900005
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254168
作者单位	[Hettiyadura, Anusha Priyadarshani Silva; Laskin, Alexander] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA; [Xu, Jianzhong; Liu, Yanmei; Zhang, Xinghua; Kang, Shichang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryopher Sci, Lanzhou 730000, Peoples R China; [Laskin, Alexander] Purdue Univ, Dept Earth Atmospher & Planetary Sci, W Lafayette, IN 47907 USA
推荐引用方式 GB/T 7714	Xu, Jianzhong,Hettiyadura, Anusha Priyadarshani Silva,Liu, Yanmei,et al. Atmospheric Brown Carbon on the Tibetan Plateau: Regional Differences in Chemical Composition and Light Absorption Properties[J]. 中国科学院西北生态环境资源研究院,2022,9(3).
APA	Xu, Jianzhong,Hettiyadura, Anusha Priyadarshani Silva,Liu, Yanmei,Zhang, Xinghua,Kang, Shichang,&Laskin, Alexander.(2022).Atmospheric Brown Carbon on the Tibetan Plateau: Regional Differences in Chemical Composition and Light Absorption Properties.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,9(3).
MLA	Xu, Jianzhong,et al."Atmospheric Brown Carbon on the Tibetan Plateau: Regional Differences in Chemical Composition and Light Absorption Properties".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 9.3(2022).