Provenance of Aerosol Black Carbon over Northeast Indian Ocean and South China Sea and Implications for Oceanic Black Carbon Cycling

doi:10.1021/acs.est.3c03481

	Provenance of Aerosol Black Carbon over Northeast Indian Ocean and South China Sea and Implications for Oceanic Black Carbon Cycling
	Geng, Xiaofei 1,2; Haig, Jordahna 3,4; Lin, Boji 1,2; Tian, Chongguo5 ; Zhu, Sanyuan 1,2; Cheng, Zhineng 1,2; Yuan, Yupeng 6; Zhang, Yan 6; Liu, Junyi 7; Zheng, Mei 7; Li, Jun 1,2; Zhong, Guangcai 1,2; Zhao, Shizhen 1,2; Bird, Michael Ian 3,4; Zhang, Gan 1,2
发表期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN	0013-936X
	2023-08-21
页码	12
关键词	black carbon provenance dual-carbon isotope hydrogen pyrolysis tropical marine aerosol oceanic black carbon cycling
DOI	10.1021/acs.est.3c03481
通讯作者	Zhang, Gan([email protected])
英文摘要	Aerosol black carbon (BC) influencesclimate forcing. Applyingthe state-of-the-art of dual-carbon isotope technology, we identifiedsix isotope provinces of aerosol BC over a substantial oceanic region,each with distinct BC sources. Aerosol black carbon (BC) is a short-lived climate pollutant.Thepoorly constrained provenance of tropical marine aerosol BC hindersthe mechanistic understanding of extreme climate events and oceaniccarbon cycling. Here, we collected PM2.5 samples duringresearch cruise NORC2016-10 through South China Sea (SCS) and NortheastIndian Ocean (NEIO) and measured the dual-carbon isotope compositions(& delta;C-13-& UDelta; C-14)of BC using hydrogen pyrolysis technique. Aerosol BC exhibits sixdifferent & delta;C-13-& UDelta; C-14 isotopic spaces (i.e., isotope provinces). Liquid fossil fuel combustion,from shipping emissions and adjacent land, is the predominant sourceof BC over isotope provinces "SCS close to Chinese Mainland"(53.5%), "Malacca Strait" (53.4%), and "OpenNEIO" (40.7%). C-3 biomass burning is the major contributorto BC over isotope provinces "NEIO close to Southeast Asia"(55.8%), "Open NEIO" (41.3%), and "Open SCS"(40.0%). Coal combustion and C-4 biomass burning show highercontributions to BC over "Sunda Strait" and "OpenSCS" than the others. Overall, NEIO near the Bay of Bengal,Malacca Strait, and north SCS are three hot spots of fossil fuel-derivedBC; the first two areas are also hot spots of biomass-derived BC.The comparable & delta;C-13-& UDelta; C-14 between BC in aerosol and dissolved BC in surface seawatermay suggest atmospheric BC deposition as a potential source of oceanicdissolved BC.
资助机构	National Natural Science Foundation of China (NSFC) ; Alliance of International Science Organizations ; Guangdong Basic and Applied Basic Research Foundation ; China Postdoctoral Science Foundation ; NSFC Ship-time Sharing Project ; China Scholarship Council
收录类别	SCI
语种	英语
关键词[WOS]	ELEMENTAL CARBON ; PARTICULATE MATTER ; ISOTOPIC COMPOSITIONS ; AIRBORNE PARTICULATE ; RADIOCARBON ANALYSIS ; EMISSION INVENTORY ; PYROGENIC CARBON ; ORGANIC-MATTER ; BROWN CLOUDS ; HYDROPYROLYSIS
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:001052078800001
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/36875
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Zhang, Gan
作者单位	1.Chinese Acad Sci, State Key Lab Organ Geochem, Hong Kong 510640, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China 3.James Cook Univ, Sch Earth & Environm Sci, Cairns, Qld 4870, Australia 4.James Cook Univ, ARC Ctr Excellence, Australian Biodivers & Heritage, Cairns, Qld 4870, Australia 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 6.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Preve, Natl Observat & Res Stn Wetland Ecosyst Yangtze Es, Shanghai 200433, Peoples R China 7.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Cont, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Geng, Xiaofei,Haig, Jordahna,Lin, Boji,et al. Provenance of Aerosol Black Carbon over Northeast Indian Ocean and South China Sea and Implications for Oceanic Black Carbon Cycling[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2023:12.
APA	Geng, Xiaofei.,Haig, Jordahna.,Lin, Boji.,Tian, Chongguo.,Zhu, Sanyuan.,...&Zhang, Gan.(2023).Provenance of Aerosol Black Carbon over Northeast Indian Ocean and South China Sea and Implications for Oceanic Black Carbon Cycling.ENVIRONMENTAL SCIENCE & TECHNOLOGY,12.
MLA	Geng, Xiaofei,et al."Provenance of Aerosol Black Carbon over Northeast Indian Ocean and South China Sea and Implications for Oceanic Black Carbon Cycling".ENVIRONMENTAL SCIENCE & TECHNOLOGY (2023):12.