globalchange  > 气候变化事实与影响
DOI: 10.1016/j.atmosenv.2018.02.049
Scopus记录号: 2-s2.0-85042939800
论文题名:
Enhanced light absorption due to the mixing state of black carbon in fresh biomass burning emissions
作者: Wang Q; , Cao J; , Han Y; , Tian J; , Zhang Y; , Pongpiachan S; , Zhang Y; , Li L; , Niu X; , Shen Z; , Zhao Z; , Tipmanee D; , Bunsomboonsakul S; , Chen Y; , Sun J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 180
起始页码: 184
结束页码: 191
语种: 英语
英文关键词: Biomass burning ; Black carbon ; Light absorption ; Mixing state ; Size distribution
Scopus关键词: Agricultural wastes ; Atmospheric radiation ; Biomass ; Climate change ; Combustion chambers ; Crops ; Light absorption ; Mixing ; Optical properties ; Size distribution ; Absorption enhancement ; Biomass burning emissions ; Biomass-burning ; Black carbon ; Enhanced light absorptions ; Mass median diameters ; Mixing state ; Radiative forcings ; Electromagnetic wave absorption
Scopus学科分类: Environmental Science: Water Science and Technology ; Earth and Planetary Sciences: Earth-Surface Processes ; Environmental Science: Environmental Chemistry
英文摘要: A lack of information on the radiative effects of refractory black carbon (rBC) emitted from biomass burning is a significant gap in our understanding of climate change. A custom-made combustion chamber was used to simulate the open burning of crop residues and investigate the impacts of rBC size and mixing state on the particles' optical properties. Average rBC mass median diameters ranged from 141 to 162 nm for the rBC produced from different types of crop residues. The number fraction of thickly-coated rBC varied from 53 to 64%, suggesting that a majority of the freshly emitted rBC were internally mixed. By comparing the result of observed mass absorption cross-section to that calculated with Mie theory, large light absorption enhancement factors (1.7–1.9) were found for coated particles relative to uncoated cores. These effects were strongly positively correlated with the percentage of coated particles but independent of rBC core size. We suggest that rBC from open biomass burning may have strong impact on air pollution and radiative forcing immediately after their production. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82906
Appears in Collections:气候变化事实与影响

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作者单位: Key Laboratory of Aerosol Chemistry and Physics, State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; Institute of Global Environmental Change, Xi'an Jiaotong University, Xi'an, China; School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, China; Department of Environmental Science and Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, China; School of Social & Environmental Development, National Institute of Development Administration (NIDA), Bangkok, Thailand; Faculty of Technology and Environment, Prince of Songkla University, Phuket Campus, Kathu, Phuket, Thailand; Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China

Recommended Citation:
Wang Q,, Cao J,, Han Y,et al. Enhanced light absorption due to the mixing state of black carbon in fresh biomass burning emissions[J]. Atmospheric Environment,2018-01-01,180
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