Influence of biomass burning on atmospheric aerosols over the western South China Sea: Insights from ions, carbonaceous fractions and stable carbon isotope ratios

doi:10.1016/j.envpol.2018.07.088

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	Influence of biomass burning on atmospheric aerosols over the western South China Sea: Insights from ions, carbonaceous fractions and stable carbon isotope ratios
	Zheng, Lishan 9; Zhao, Yan 1; Zhang, Yingyi ; Fu, Pingqing 8,9; Cao, Zhixiang 5; Gromov, Sergey 3,4; Lai, Senchao ; Xu, Weihai 6; Huang, Xiaofeng 7; Wang, Shan
刊名	ENVIRONMENTAL POLLUTION
	2018
卷号	242 页码:1800
关键词	Biomass burning Carbonaceous aerosols Stable carbon isotope Chloride depletion South China Sea
ISSN号	0269-7491
DOI	10.1016/j.envpol.2018.07.088
英文摘要	Total suspended particle (TSP) samples were collected during a cruise campaign over the western South China Sea (SCS) from August to September 2014. Ten water-soluble ions (WSI), organic carbon (OC), elemental carbon (EC) and stable carbon isotope ratios of total carbon (delta C-13(TC)) were measured. The average concentrations of total WSI, OC and EC were 7.91 +/- 3.441.mu g/m(3), 2.04 +/- 1.25 mu g/m(3) and 0.30 +/- 0.22 mu g/m(3), respectively. Among the investigated WSI, sulfate (SO42-), sodium (Na+) and chloride (Cl-) were the most abundant species, accounting for 39.2%, 24.5% and 14.3% of the total mass of the WSI, respectively. Significantly positive correlations of OC and EC with non-sea-salt potassium (nss-K+), a tracer for biomass burning, suggest that biomass burning is the major source of carbonaceous aerosols. The values of delta C-13(TC) ranged from -26.6%0 to -24.4%0 with an average of -25.3 +/- 0.7%0. Based on the literature data of delta C-13(TC) back-trajectory analysis and satellite fire spots, we propose that C3 plant burning in Southeast Asia significantly contributes to carbonaceous aerosols over the western SCS. This is also supported by a good correlation between delta C-13(TC) and the mass ratios of nss-K+/TC. Furthermore, high Cl- depletion (73 +/- 23%) was observed in the aerosols over the western SCS. Given the neutralization of SO42- by ammonium (NH4+), excess nss-SO42- and oxalate (C2O42-) made major contributions to Cl- depletion in the samples strongly influenced by biomass burning. This study provides useful information to better understand the influence of biomass burning on atmospheric aerosols over the SCS. (C) 2018 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/17679]
专题	南海海洋研究所_中科院边缘海地质重点实验室
作者单位	1.South China Univ Technol, Sch Environm & Energy, Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou, Guangdong, Peoples R China 2.RAS, Moscow, Russia 3.Roshydromet, Inst Global Climate & Ecol, Moscow, Russia 4.Guangzhou Qual Supervis & Testing Inst, Guangzhou, Guangdong, Peoples R China 5.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Guangdong, Peoples R China 6.Peking Univ, Sch Environm & Energy, Key Lab Urban Habitat Environm Sci & Technol, Shenzhen Grad Sch, Shenzhen, Peoples R China 7.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China 8.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing, Peoples R China 9.Guangdong Environm Monitoring Ctr, Guangzhou, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Lishan,Zhao, Yan,Zhang, Yingyi,et al. Influence of biomass burning on atmospheric aerosols over the western South China Sea: Insights from ions, carbonaceous fractions and stable carbon isotope ratios[J]. ENVIRONMENTAL POLLUTION,2018,242:1800, 1809.
APA	Zheng, Lishan.,Zhao, Yan.,Zhang, Yingyi.,Fu, Pingqing.,Cao, Zhixiang.,...&Song, Junwei.(2018).Influence of biomass burning on atmospheric aerosols over the western South China Sea: Insights from ions, carbonaceous fractions and stable carbon isotope ratios.ENVIRONMENTAL POLLUTION,242,1800.
MLA	Zheng, Lishan,et al."Influence of biomass burning on atmospheric aerosols over the western South China Sea: Insights from ions, carbonaceous fractions and stable carbon isotope ratios".ENVIRONMENTAL POLLUTION 242(2018):1800.