Provenance of Aerosol Black Carbon over Northeast Indian Ocean and South China Sea and Implications for Oceanic Black Carbon Cycling
Geng, Xiaofei1,2; Haig, Jordahna3,4; Lin, Boji1,2; Tian, Chongguo5; Zhu, Sanyuan1,2; Cheng, Zhineng1,2; Yuan, Yupeng6; Zhang, Yan6; Liu, Junyi7; Zheng, Mei7; Li, Jun1,2; Zhong, Guangcai1,2; Zhao, Shizhen1,2; Bird, Michael Ian3,4; Zhang, Gan1,2
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
2023-08-21
Pages12
Keywordblack carbon provenance dual-carbon isotope hydrogen pyrolysis tropical marine aerosol oceanic black carbon cycling
DOI10.1021/acs.est.3c03481
Corresponding AuthorZhang, Gan(zhanggan@gig.ac.cn)
AbstractAerosol 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.
Funding OrganizationNational 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
Indexed BySCI
Language英语
WOS KeywordELEMENTAL CARBON ; PARTICULATE MATTER ; ISOTOPIC COMPOSITIONS ; AIRBORNE PARTICULATE ; RADIOCARBON ANALYSIS ; EMISSION INVENTORY ; PYROGENIC CARBON ; ORGANIC-MATTER ; BROWN CLOUDS ; HYDROPYROLYSIS
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS IDWOS:001052078800001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/33469
Collection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
Corresponding AuthorZhang, Gan
Affiliation1.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
Recommended Citation
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.
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