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

文献类型：期刊论文

作者Geng, Xiaofei5; Haig, Jordahna4; Lin, Boji5; Tian, Chongguo3; Zhu, Sanyuan5; Cheng, Zhineng5; Yuan, Yupeng2; Zhang, Yan2; Liu, Junyi1; Zheng, Mei1
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期2023
卷号57期号:35页码:13067-13078
关键词ELEMENTAL CARBON PARTICULATE MATTER ISOTOPIC COMPOSITIONS AIRBORNE PARTICULATE RADIOCARBON ANALYSIS EMISSION INVENTORY PYROGENIC CARBON ORGANIC-MATTER BROWN CLOUDS HYDROPYROLYSIS
ISSN号0013-936X
DOI10.1021/acs.est.3c03481
英文摘要Aerosol black carbon (BC) is a short-lived climate pollutant. The poorly constrained provenance of tropical marine aerosol BC hinders the mechanistic understanding of extreme climate events and oceanic carbon cycling. Here, we collected PM2.5 samples during research cruise NORC2016-10 through South China Sea (SCS) and Northeast Indian Ocean (NEIO) and measured the dual-carbon isotope compositions (δ13C-Δ14C) of BC using hydrogen pyrolysis technique. Aerosol BC exhibits six different δ13C?Δ14C isotopic spaces (i.e., isotope provinces). Liquid fossil fuel combustion, from shipping emissions and adjacent land, is the predominant source of BC over isotope provinces 'SCS close to Chinese Mainland' (53.5%), 'Malacca Strait' (53.4%), and 'Open NEIO' (40.7%). C3 biomass burning is the major contributor to BC over isotope provinces 'NEIO close to Southeast Asia' (55.8%), 'Open NEIO' (41.3%), and 'Open SCS' (40.0%). Coal combustion and C4 biomass burning show higher contributions to BC over 'Sunda Strait' and 'Open SCS' than the others. Overall, NEIO near the Bay of Bengal, Malacca Strait, and north SCS are three hot spots of fossil fuel-derived BC; the first two areas are also hot spots of biomass-derived BC. The comparable δ13C-Δ14C between BC in aerosol and dissolved BC in surface seawater may suggest atmospheric BC deposition as a potential source of oceanic dissolved BC. ? 2023 American Chemical Society
WOS研究方向Engineering, Environmental ; Environmental Sciences
语种英语
WOS记录号WOS:001052078800001
源URL[http://ir.gig.ac.cn/handle/344008/80327]  
专题有机地球化学国家重点实验室
作者单位1.State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing; 100871, China
2.Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Department of Environmental Science and Engineering, Fudan University, Shanghai; 200433, China
3.Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai; 264003, China
4.School of Earth and Environmental Sciences, ARC Centre of Excellence for Australian Biodiversity and Heritage, James Cook University, Cairns; QLD; 4870, Australia
5.State Key Laboratory of Organic Geochemistry, Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou; 510640, 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,2023,57(35):13067-13078.
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,57(35),13067-13078.
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 57.35(2023):13067-13078.

入库方式： OAI收割

来源：广州地球化学研究所

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