One-year characterization of organic aerosol markers in urban Beijing: Seasonal variation and spatiotemporal comparison
文献类型:期刊论文
作者 | Wang, Ting3,4,5,6; Huang, Ru-Jin4; Li, Yongjie8; Chen, Qi2; Chen, Yang1; Yang, Lu4; Guo, Jie4; Ni, Haiyan4; Hoffmann, Thorsten7; Wang, Xinming3,6 |
刊名 | SCIENCE OF THE TOTAL ENVIRONMENT |
出版日期 | 2020-11-15 |
卷号 | 743页码:13 |
ISSN号 | 0048-9697 |
关键词 | OA markers Seasonal characterization Inter-annual variations Spatial distributions Air pollution |
DOI | 10.1016/j.scitotenv.2020.140689 |
通讯作者 | Huang, Ru-Jin(rujin.huang@ieecas.cn) |
英文摘要 | Organic aerosol (OA) is a major component of fine particulate matter (PM); however, only 10%-30% of OA have been identified as individual compounds, and some are used as markers to trace the sources and formation mechanisms of OA. The temporal and spatial coverage of these OA markers nonetheless remain inadequately characterized. This study presents a year-long measurement of 92 organic markers in PM2.5 samples collected at an urban site in Beijing from 2014 to 2015. Saccharides were the most abundant (340.1 ng m(-3)) species detected, followed by phthalic adds (283.4 ng m(-3)). In summer, high proportions (8%-24%) of phthalic acids, n-alkanes, fatty acids, and n-alcohols indicate dominant contributions of biogenic emission and atmospheric oxidation to OA in Beijing. In winter, when anthropogenic sources prevail, saccharides, polycyclic aromatic hydrocarbons, and hopanes are more prominent (4%-25%). The spatial distributions of these OA markers in China show higher concentrations in northern cities (mainly from coal combustion and biomass burning) than in southern cities (mainly from vehicular emission). The inter-annual variations of OA markers, except for hopanes, from 2001 to 2015 suggest significant alleviation of the primary OA pollution in Beijing, with an average reduction of 35%-89% compared with those before 2008. The diagnostic ratio analyses between OA markers indicate that contributions from coal combustion and biomass burning decreased, whereas those from vehicular emission increased. Increasingly large vehicle fleets have increased hopane concentrations since 2008, but the levels were 35% lower in 2015 than those in 2010-2011 because of the tightening of emission controls for vehicles. This study provides a long-term and geographical comparison (from Beijing to other locations in China and beyond) of OA markers, demonstrating the temporal and spatial variations in primary OA, and calls for more studies on secondary OA. (C) 2020 Elsevier B.V. All rights reserved. |
资助项目 | National Natural Science Foundation of China (NSFC)[41925015] ; National Natural Science Foundation of China (NSFC)[91644219] ; National Natural Science Foundation of China (NSFC)[41877408] ; Chinese Academy of Sciences[ZDBS-LY-DQC001] ; Chinese Academy of Sciences[XDB40030202] ; Chinese Academy of Sciences[QYZDJ-SSW-DQC018] ; Cross Innovative Team fund fromthe State Key Laboratory of Loess and Quaternary Geology (SKLLQG)[SKLLQGTD1801] ; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program[2017BT01Z134] ; National Natural Science Foundation of China[41675120] ; Science and Technology Development Fund, Macau SAR[016/2017/A1] |
WOS研究方向 | Environmental Sciences & Ecology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000573543300012 |
源URL | [http://119.78.100.138/handle/2HOD01W0/11853] |
专题 | 中国科学院重庆绿色智能技术研究院 |
通讯作者 | Huang, Ru-Jin |
作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Key Lab Aerosol Chem & Phys, Inst Earth Environm,State Key Lab Loess & Quatern, Xian 710061, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 7.Johannes Gutenberg Univ Mainz, Inst Inorgan & Analyt Chem, Duesbergweg 10-14, D-55128 Mainz, Germany 8.Univ Macau, Fac Sci & Technol, Dept Civil & Environm Engn, Taipa 999078, Macao, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Ting,Huang, Ru-Jin,Li, Yongjie,et al. One-year characterization of organic aerosol markers in urban Beijing: Seasonal variation and spatiotemporal comparison[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,743:13. |
APA | Wang, Ting.,Huang, Ru-Jin.,Li, Yongjie.,Chen, Qi.,Chen, Yang.,...&Mai, Bixian.(2020).One-year characterization of organic aerosol markers in urban Beijing: Seasonal variation and spatiotemporal comparison.SCIENCE OF THE TOTAL ENVIRONMENT,743,13. |
MLA | Wang, Ting,et al."One-year characterization of organic aerosol markers in urban Beijing: Seasonal variation and spatiotemporal comparison".SCIENCE OF THE TOTAL ENVIRONMENT 743(2020):13. |
入库方式: OAI收割
来源:重庆绿色智能技术研究院
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