Brown carbon's emission factors and optical characteristics in household biomass burning: developing a novel algorithm for estimating the contribution of brown carbon

doi:10.5194/acp-21-2329-2021

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Brown carbon's emission factors and optical characteristics in household biomass burning: developing a novel algorithm for estimating the contribution of brown carbon
	Sun, Jianzhong 1,9; Zhang, Yuzhe 1; Zhi, Guorui 1; Hitzenberger, Regina 8; Jin, Wenjing 1; Chen, Yingjun 6; Wang, Lei 1; Tian, Chongguo 2; Li, Zhengying 1; Chen, Rong 3
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2021-02-17
卷号	21 期号:4 页码:2329-2341
ISSN号	1680-7316
DOI	10.5194/acp-21-2329-2021
通讯作者	Zhi, Guorui(zhigr@craes.org.cn) ; Chen, Yingjun(yjchenfd@fudan.edu.cn)
英文摘要	Recent studies have highlighted the importance of brown carbon (BrC) in various fields, particularly relating to climate change. The incomplete combustion of biomass in open and contained burning conditions is believed to be a significant contributor to primary BrC emissions. So far, few studies have reported the emission factors of BrC from biomass burning, and few studies have specifically addressed which form of light-absorbing carbon, such as black carbon (BC) or BrC, plays a leading role in the total solar light absorption by biomass burning. In this study, the optical integrating sphere (IS) approach was used, with carbon black and humic acid sodium salt as reference materials for BC and BrC, respectively, to distinguish BrC from BC on filter samples. A total of 11 widely used biomass types in China were burned in a typical stove to simulate the real household combustion process. (i) Large differences existed in the emission factors of BrC (EFBrC) among the tested biomass fuels, with a geometric mean EFBrC of 0.71 g kg(-1) (0.24-2.09). Both the plant type (herbaceous or ligneous) and burning style (raw or briquetted biomass) might influence the value of EFBrC. The observed reduction in the emissions of light-absorbing carbon (LAC) confirmed an additional benefit of biomass briquetting in climate change mitigation. (ii) The calculated annual BrC emissions from China's household biomass burning amounted to 712 Gg, higher than the contribution from China's household coal combustion (592 Gg). (iii) The average absorption Angstrom exponent (AAE) was (2.46 +/- 0.53), much higher than that of coal-chunk combustion smoke (AAE = 1.30 +/- 0.32). (iv) For biomass smoke, the contribution of absorption by BrC to the total absorption by BC + BrC across the strongest solar spectral range of 350-850 nm (F-BrC) was 50.8 %. This is nearly twice that for BrC in smoke from household coal combustion (26.5 %). (v) Based on this study, a novel algorithm was developed for estimating the F-BrC for perhaps any combustion source (F-BrC = 0.5519 ln AAE + 0.0067, R-2 = 0.999); the F-BrC value for all global biomass burning (open + contained) (FBrC-entire) was 64.5 % (58.5 %-69.9 %). This corroborates the dominant role of BrC in total biomass burning absorption. Therefore, the inclusion of BrC is not optional but indispensable when considering the climate energy budget, particularly for biomass burning emissions (contained and open).
资助项目	National Natural Science Foundation[41977309] ; research results of the 13th 5-year plan for social sciences in Jiangxi Province, China[19ZK34] ; National Key Research & Development Plan[2017YFC0213001] ; Special Project of Fundamental Research Funds of the Chinese Research Academy of Environmental Sciences[JY41373131] ; Chinese-Norwegian Project on Emissions, Impacts, and Control Policies for Black Carbon and its Co-benefits in Northern China[CHN-2148-19/0029] ; Jiangxi Sports Bureau, China[2018021]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000620813600002
资助机构	National Natural Science Foundation ; research results of the 13th 5-year plan for social sciences in Jiangxi Province, China ; National Key Research & Development Plan ; Special Project of Fundamental Research Funds of the Chinese Research Academy of Environmental Sciences ; Chinese-Norwegian Project on Emissions, Impacts, and Control Policies for Black Carbon and its Co-benefits in Northern China ; Jiangxi Sports Bureau, China
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/27438]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Zhi, Guorui; Chen, Yingjun
作者单位	1.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 3.East China Jiaotong Univ, Coll Phys & Hlth Educ, Nanchang 330006, Jiangxi, Peoples R China 4.Jiangxi Sci & Technol Normal Univ, Sch Phys Educ, Nanchang 330006, Jiangxi, Peoples R China 5.Harbin Inst Technol, Sch Environm, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China 6.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200438, Peoples R China 7.Jiangxi Sports Hosp, Nanchang 330006, Jiangxi, Peoples R China 8.Univ Vienna, Fac Phys, Boltzmanngasse 5, A-1090 Vienna, Austria 9.Shangrao Normal Univ, Sch Phys Educ, Shangrao 334001, Peoples R China
推荐引用方式 GB/T 7714	Sun, Jianzhong,Zhang, Yuzhe,Zhi, Guorui,et al. Brown carbon's emission factors and optical characteristics in household biomass burning: developing a novel algorithm for estimating the contribution of brown carbon[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2021,21(4):2329-2341.
APA	Sun, Jianzhong.,Zhang, Yuzhe.,Zhi, Guorui.,Hitzenberger, Regina.,Jin, Wenjing.,...&Wu, Changdong.(2021).Brown carbon's emission factors and optical characteristics in household biomass burning: developing a novel algorithm for estimating the contribution of brown carbon.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4),2329-2341.
MLA	Sun, Jianzhong,et al."Brown carbon's emission factors and optical characteristics in household biomass burning: developing a novel algorithm for estimating the contribution of brown carbon".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021):2329-2341.