PM2.5 emissions and source profiles from open burning of crop residues

doi:10.1016/j.atmosenv.2017.08.063

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	PM2.5 emissions and source profiles from open burning of crop residues
	Chen, L-W. Antony 1,4,8; Ni, Haiyan 3,4,5; Tian, Jie 3,4,5; Wang, Xiaoliang 1,4; Wang, Qiyuan 3,4; Han, Yongming 2,3,4; Cao, Junji 2,4; Long, Xin 3,4,5; Chow, Judith C.1,3; Watson, John G.1,3
刊名	ATMOSPHERIC ENVIRONMENT
	2017-11-01
卷号	169 期号:2017 页码:229-237
关键词	Source Profiles Emission Factors Emission Rates Crop Residues Biomass Burning
DOI	10.1016/j.atmosenv.2017.08.063
文献子类	Article
英文摘要	Wheat straw, rice straw, and corn stalks, the major agricultural crop residues in China, were collected from six major crop producing regions, and burned in a laboratory combustion chamber to determine PM2.5 source profiles and speciated emission factors (EFs). Organic carbon (OC) and water-soluble ions (the sum of NH4+, Na+, K+, Mg2+, Ca2+, Cl-, NO3- and SO42-) are major constituents, accounting for 43.1 +/- 83% and 27.4 +/- 14.6% of PM2.5, respectively. Chloride (Cl-) and water-soluble potassium (K+) are the dominant ionic species, with an average abundance of 14.5 +/- 8.2% and 6.4 +/- 4.4% in PM2.5, respectively. The average K+/Cl- ratio is similar to 0.4, lower than 2.8-5.4 for wood combustion. Similarity measures (i.e., Student's t-test, coefficient of divergence, correlations, and residual to uncertainty ratios) show the crop profiles are too similar for the species measured to be resolved from one another by receptor modeling. The largest difference was found between rice straw and corn stalk emissions, with higher OC and lower Cl- and K+ abundances (50%, 8%, and 3% of PM2.5, respectively) for corn stalks; lower OC, and higher Cl- and K+ abundances (38%, 21%, and 10% of PM2.5, respectively) for rice straw. Average EFs were 4.8 +/- 3.1 g kg(-1) for OC, 1.3 +/- 0.8 g kg(-1) for Cl- and 0.59 +/- 0.56 g kg(-1) for K+. Flaming and smoldering combustions resulted in an average modified combustion efficiency (MCE) of 0.92 +/- 0.03, and low elemental carbon (EC) EFs (0.24 +/- 0.12 g kg(-1)). OC/EC ratios from individual source profiles ranged from 12.9 +/- 4.3 for rice straw to 24.1 +/- 13.5 for wheat straw. The average K+/EC ratio was 2.4 +/- 1.5, an order of magnitude higher than those from residential wood combustion (0.2-0.76). Elevated emission rates were found for OC (387 Gg yr(-1)) and Cl- (122 Gg yr(-1)), accounting for 44% and 14% of 2008 PM2.5 emissions in China. (C) 2017 Elsevier Ltd. All rights reserved.
WOS关键词	FINE-PARTICLE EMISSIONS ; CHEMICAL SOURCE PROFILES ; PARTICULATE MATTER ; ORGANIC-CARBON ; ELEMENTAL CARBON ; UNITED-STATES ; TRACE GASES ; SOURCE APPORTIONMENT ; SAMPLING ARTIFACTS ; AEROSOL-PARTICLES
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000413882400019
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5393]
专题	地球环境研究所_粉尘与环境研究室
作者单位	1.Desert Res Inst, Div Atmospher Sci, 2215 Raggio Pkwy, Reno, NV 89512 USA 2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Shaanxi, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, KLACP, Xian 710061, Shaanxi, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Univ Groningen, ESRIG, Ctr Isotope Res CIO, Groningen, Netherlands 7.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 8.Univ Nevada, Dept Environm & Occupat Hlth, Las Vegas, NV 89154 USA
推荐引用方式 GB/T 7714	Chen, L-W. Antony,Ni, Haiyan,Tian, Jie,et al. PM2.5 emissions and source profiles from open burning of crop residues[J]. ATMOSPHERIC ENVIRONMENT,2017,169(2017):229-237.
APA	Chen, L-W. Antony.,Ni, Haiyan.,Tian, Jie.,Wang, Xiaoliang.,Wang, Qiyuan.,...&Dusek, Ulrike.(2017).PM2.5 emissions and source profiles from open burning of crop residues.ATMOSPHERIC ENVIRONMENT,169(2017),229-237.
MLA	Chen, L-W. Antony,et al."PM2.5 emissions and source profiles from open burning of crop residues".ATMOSPHERIC ENVIRONMENT 169.2017(2017):229-237.