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Morphologies and elemental compositions of local biomass burning particles at urban and glacier sites in southeastern Tibetan Plateau: Results from an expedition in 2010
Hu, Tafeng1; Cao, Junji1; Zhu, Chongshu1; Zhao, Zhuzi1; Liu, Suixin1; Zhang, Daizhou2
2018-07-01
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
卷号628-629期号:2页码:772-781
文章类型Article
摘要Many studies indicate that the atmospheric environment over the southern part of the Tibetan Plateau is influenced by aged biomass burning particles that are transported over long distances from South Asia. However, our knowledge of the particles emitted locally (within the plateau region) is poor. We collected aerosol particles at four urban sites and one remote glacier site during a scientific expedition to the southeastern Tibetan Plateau in spring 2010. Weather and backward trajectory analyses indicated that the particles we collected were more likely dominated by particles emitted within the plateau. The particles were examined using an electron microscope and identified according to their sizes, shapes and elemental compositions. At three urban sites where the anthropogenic particles were produced mainly by the burning of firewood, soot aggregates were in the majority and made up >40% of the particles by number. At Lhasa, the largest city on the Tibetan Plateau, tar balls and mineral particles were also frequently observed because of the use of coal and natural gas, in addition to biofuel. In contrast, at the glacier site, large numbers of chain-like soot aggregates (similar to 25% by number) were noted. The morphologies of these aggregates were similar to those of freshly emitted ones at the urban sites: moreover, physically or chemically processed ageing was rarely confirmed. These limited observations suggest that the biomass burning particles age slowly in the cold, dry plateau air. Anthropogenic particles emitted locally within the elevated plateau region may thus affect the environment within glaciated areas in Tibet differently than anthropogenic particles transported from South Asia. (C) 2018 Elsevier B.V. All rights reserved.
关键词Tibetan Plateau Soot Particles Ageing Glacier Area Individual Particle Analysis
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2018.02.073
关键词[WOS]ECO-ENVIRONMENTAL DEGRADATION ; INDIVIDUAL AEROSOL-PARTICLES ; ATMOSPHERIC BROWN CLOUDS ; ASIAN SUMMER MONSOON ; LONG-RANGE TRANSPORT ; TERRA-COTTA MUSEUM ; BLACK CARBON ; MIXING STATE ; MEXICO-CITY ; AIRBORNE PARTICLES
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000432462000080
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5138
专题粉尘与环境研究室
作者单位1.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Key Lab Aerosol Chem & Phys, Xian 710061, Shaanxi, Peoples R China
2.Prefectural Univ Kumamoto, Fac Environm & Symbiot Sci, Kumamoto 8628502, Japan
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Hu, Tafeng,Cao, Junji,Zhu, Chongshu,et al. Morphologies and elemental compositions of local biomass burning particles at urban and glacier sites in southeastern Tibetan Plateau: Results from an expedition in 2010[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,628-629(2):772-781.
APA Hu, Tafeng,Cao, Junji,Zhu, Chongshu,Zhao, Zhuzi,Liu, Suixin,&Zhang, Daizhou.(2018).Morphologies and elemental compositions of local biomass burning particles at urban and glacier sites in southeastern Tibetan Plateau: Results from an expedition in 2010.SCIENCE OF THE TOTAL ENVIRONMENT,628-629(2),772-781.
MLA Hu, Tafeng,et al."Morphologies and elemental compositions of local biomass burning particles at urban and glacier sites in southeastern Tibetan Plateau: Results from an expedition in 2010".SCIENCE OF THE TOTAL ENVIRONMENT 628-629.2(2018):772-781.
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