globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.atmosres.2018.02.018
Scopus记录号: 2-s2.0-85042754186
论文题名:
Biomass burning influences determination based on PM2.5 chemical composition combined with fire counts at southeastern Tibetan Plateau during pre-monsoon period
作者: Zhang N.; Cao J.; Wang Q.; Huang R.; Zhu C.; Xiao S.; Wang L.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 206
起始页码: 108
结束页码: 116
语种: 英语
英文关键词: Aerosols ; Biomass burning ; Chemical composition ; Fire counts ; Mt. Yulong
Scopus关键词: Aerosols ; Air quality ; Atmospheric aerosols ; Biomass ; Chemical analysis ; Fires ; Organic carbon ; Paraffins ; Particles (particulate matter) ; Sea level ; Aerosol optical depths ; Biomass-burning ; Chemical compositions ; Correlation coefficient ; Fine particulate matter (PM2.5) ; High altitude sites ; Mt. Yulong ; Polycyclic aromatic hydrocarbons (PAHS) ; Polycyclic aromatic hydrocarbons ; aerosol ; air quality ; biomass burning ; chemical composition ; concentration (composition) ; monsoon ; optical depth ; PAH ; particulate matter ; China ; Qinghai-Xizang Plateau ; Yulong Snow Mountains ; Yunnan
英文摘要: Influences of biomass burning (BB) on a high altitude site were investigated by collecting fine particulate matter (PM2.5) samples from 29 March to 27 April of 2012 at Mt. Yulong (4500 m above sea level), and analyzing them for selected chemical species including water soluble ions (WSIs), organic carbon (OC), elemental carbon (EC), polycyclic aromatic hydrocarbons (PAHs) and n-alkanes. The mean PM2.5 mass loading for the study was 6.30 ± 4.90 μg m−3, and 15.48 ± 2.82 μg m−3 and 1.75 ± 0.41 μg m−3 for a high and a low PM episode, respectively. WSIs accounted for 62% of the total mass, and SO4 2− was the dominant anion and NH4 + was the main cation. PAHs were mainly 3 ring compounds, fluorene (Flo) and phenanthrene (Phe) together accounted for 54% of the total PAHs. For n-alkanes, n-Nonacosane (C29) concentration was the highest with the value of 1.09 ± 1.18 ng m−3, following is n-Hentriacontane (C31) and n-Heptacosane (C27) suggested that n-alkane in our samples were mainly contributed by biogenic sources. BB emission was confirmed by the diagnostic ratios, and it also had a significant influence on aerosol optical depth (AOD) distribution and enhances the concentration of most species, especially for OC, K+ and EC. Significant relationships were found between daily fire counts and BB species, and correlation coefficients (r) for mass, K+, OC, and EC were 0.58, 0.57, 0.53 and 0.60 (n = 29, P < 0.01), respectively. It indicated that daily fire counts can advance our understanding of how biomass burning affect aerosols and air quality at a high-altitude site. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108905
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China; Lab of Atmospheric Chemistry, Paul Scherrer Institute (PSI), Villigen, 5232, Switzerland; School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710062, China; College of Architectural Engineering, Binzhou University, Binzhou, 256600, China

Recommended Citation:
Zhang N.,Cao J.,Wang Q.,et al. Biomass burning influences determination based on PM2.5 chemical composition combined with fire counts at southeastern Tibetan Plateau during pre-monsoon period[J]. Atmospheric Research,2018-01-01,206
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