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Dual-carbon isotope constraints on source apportionment of black carbon in the megacity Guangzhou of the Pearl River Delta region, China for 2018 autumn season

文献类型：期刊论文

作者Jiang, Fan1; Liu, Junwen1; Cheng, Zhineng2,4; Ding, Ping3; Xu, Yuanqian1; Zong, Zheng5; Zhu, Sanyuan2,4; Zhou, Shengzhen6; Yan, Caiqing7; Zhang, Zhisheng8
刊名ENVIRONMENTAL POLLUTION
出版日期2022-02-01
卷号294页码:9
关键词Black carbon Radiocarbon Stable carbon isotope Air pollution Pearl River Delta region
ISSN号0269-7491
DOI10.1016/j.envpol.2021.118638
通讯作者Liu, Junwen(liu.junwen@jnu.edu.cn)
英文摘要Black carbon (BC) aerosol negatively affects air quality and contributes to climate warming globally. However, little is known about the relative contributions of different source control measures to BC reduction owing to the lack of powerful source-diagnostic tools. We combine the fingerprints of dual-carbon isotope using an optimized Bayesian Markov chain Monte Carlo (MCMC) scheme and for the first time to study the key sources of BC in megacity Guangzhou of the Pearl River Delta (PRD) region, China in 2018 autumn season. The MCMC model-derived source apportionment of BC shows that the dominant contributor is petroleum combustion (39%), followed by coal combustion (34%) and biomass burning (27%). It should be noted that the BC source pattern is highly sensitive to the variations of air masses transported with an enhanced contribution of fossil source from the eastern area, suggesting the important impact of regional atmospheric transportation on the BC source profile in the PRD region. Also, we further found that fossil fuel combustion BC contributed 84% to the total BC reduction during 2013-2018. The response of PM2.5 concentration to the C-14-derived BC source apportionment is successfully fitted (r = 0.90) and the results predicted that it would take similar to 6 years to reach the WHO PM2.5 guideline value (10 mu g m(-3)) for the PRD region if the emission control measures keep same as they are at present. Taken together, our findings suggest that dual-carbon isotope is a powerful tool in constraining the source apportionment of BC for the evaluations of air pollution control and carbon emission measures.
WOS关键词NON-FOSSIL SOURCES ; ELEMENTAL CARBON ; ORGANIC-CARBON ; TIBETAN PLATEAU ; HAZE EVENTS ; EMISSIONS ; AEROSOL ; POLLUTION ; RADIOCARBON ; ATMOSPHERE
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000758388100006
资助机构Natural Science Foundation of China ; Fund of the State Key Laboratory of Organic Geochemistry
源URL[http://ir.yic.ac.cn/handle/133337/31525]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Liu, Junwen
作者单位1.Jinan Univ, Inst Environm & Climate Res, Guangzhou, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China
4.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China
5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
6.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Peoples R China
7.Shandong Univ, Environm Res Inst, Qingdao, Peoples R China
8.Minist Environm Protect, South China Inst Environm Sci, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Jiang, Fan,Liu, Junwen,Cheng, Zhineng,et al. Dual-carbon isotope constraints on source apportionment of black carbon in the megacity Guangzhou of the Pearl River Delta region, China for 2018 autumn season[J]. ENVIRONMENTAL POLLUTION,2022,294:9.
APA Jiang, Fan.,Liu, Junwen.,Cheng, Zhineng.,Ding, Ping.,Xu, Yuanqian.,...&Zhang, Gan.(2022).Dual-carbon isotope constraints on source apportionment of black carbon in the megacity Guangzhou of the Pearl River Delta region, China for 2018 autumn season.ENVIRONMENTAL POLLUTION,294,9.
MLA Jiang, Fan,et al."Dual-carbon isotope constraints on source apportionment of black carbon in the megacity Guangzhou of the Pearl River Delta region, China for 2018 autumn season".ENVIRONMENTAL POLLUTION 294(2022):9.

入库方式： OAI收割

来源：烟台海岸带研究所

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