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Nitrogen Speciation and Isotopic Composition of Aerosols Collected at Himalayan Forest (3326 m a.s.l.): Seasonality, Sources, and Implications
Bhattarai, H (Bhattarai, Hemraj)1,6; Zhang, YL (Zhang, Yan-Lin)2; Pavuluri, CM (Pavuluri, Chandra Mouli)4; Wan, X (Wan, Xin)1; Wu, GM (Wu, Guangming)1; Li, PL (Li, Peilin)1; Cao, F (Cao, Fang)2; Zhang, WQ (Zhang, Wenqi)2; Wang, YJ (Wang, Yongjie)1; Kang, SC (Kang, Shichang)3,7; Ram, K (Ram, Kirpa)1,8; Kawamura, K (Kawamura, Kimitaka)5; Ji, ZM (Ji, Zhenming)9; Widory, D (Widory, David)10; Cong, ZY (Cong, Zhiyuan)1
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
2019
Volume53Issue:21Pages:12247-12256
DOI10.1021/acs.est.9b03999
Abstract

Nitrogenous aerosols are ubiquitous in the environment and thus play a vital role in the nutrient balance as well as the Earth's climate system. However, their abundance, sources, and deposition are poorly understood, particularly in the fragile and ecosensitive Himalayan and Tibetan Plateau (HTP) region. Here, we report concentrations of nitrogen species and isotopic composition (delta N-15) in aerosol samples collected from a forest site in the HTP (i.e., Southeast Tibet). Our results revealed that both organic and inorganic nitrogen contribute almost equally with high abundance of ammonium nitrogen (NH4+-N) and water-insoluble organic nitrogen (WION), contributing similar to 40% each to aerosol total nitrogen (TN). The concentrations and delta N-15 exhibit a significant seasonality with similar to 2 times higher in winter than in summer with no significant diurnal variations for any species. Moreover, winter aerosols mainly originated from biomass burning emissions from North India and East Pakistan and reached the HTP through a long-range atmospheric transport. The TN dry deposition and total deposition fluxes were 2.04 kg ha(-1) yr(-1) and 6.12 kg ha(-1) yr(-1) respectively. Our results demonstrate that the air contamination from South Asia reach the HTP yand is most likely impacting the high altitude ecosystems in an accepted scenario of increasing emissions over South Asia.

Subject AreaEnvironmental Sciences
WOS IDWOS:000495467500012
Language英语
Indexed BySCI
KeywordSoluble Dicarboxylic-acids Biomass-burning Emissions Stable Carbon Organic Nitrogen Major Ions Marine Aerosols Tibetan Plateau Fine Aerosols Deposition Water
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
Cooperation Status国际
ISSN0013-936X
Department环境变化与地表过程重点实验室
URL查看原文
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9094
Collection图书馆
Corresponding AuthorCong, ZY (Cong, Zhiyuan)
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China;
2.Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing 210044, Jiangsu, Peoples R China;
3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Gansu, Peoples R China;
4.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China;
5.Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi 4878501, Japan;
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
7.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
8.Banaras Hindu Univ, Inst Environm & Sustainable Dev, Varanasi 221005, Uttar Pradesh, India;
9.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Sch Atmospher Sci, Guangzhou 510275, Guangdong, Peoples R China;
10.Univ Quebec Montreal UQAM, Geotop, 201 Ave President Kennedy, Montreal, PQ H2X 3Y7, Canada.
Recommended Citation
GB/T 7714
Bhattarai, H ,Zhang, YL ,Pavuluri, CM ,et al. Nitrogen Speciation and Isotopic Composition of Aerosols Collected at Himalayan Forest (3326 m a.s.l.): Seasonality, Sources, and Implications[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(21):12247-12256.
APA Bhattarai, H .,Zhang, YL .,Pavuluri, CM .,Wan, X .,Wu, GM .,...&Cong, ZY .(2019).Nitrogen Speciation and Isotopic Composition of Aerosols Collected at Himalayan Forest (3326 m a.s.l.): Seasonality, Sources, and Implications.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(21),12247-12256.
MLA Bhattarai, H ,et al."Nitrogen Speciation and Isotopic Composition of Aerosols Collected at Himalayan Forest (3326 m a.s.l.): Seasonality, Sources, and Implications".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.21(2019):12247-12256.
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