标題: Source apportionment of PM2.5 carbonaceous aerosols during a long-lasting winter haze episode in Xiangyang, central China

作者: Jiang, HM (Jiang, Huimeng); Geng, XF (Geng, Xiaofei); Cheng, ZN (Cheng, Zhineng); Zhan, LX (Zhan, Lingxi); Tang, J (Tang, Jiao); Li, JT (Li, Jiangtao); Xiao, H (Xiao, Han); Song, H (Song, He); Wang, T (Wang, Tao); Li, J (Li, Jun); Zhang, G (Zhang, Gan); Wang, ZW (Wang, Zuwu); Cheng, HR (Cheng, Hairong)

來源出版物: ATMOSPHERIC POLLUTION RESEARCH  卷: 12  期: 2  頁: 470-479  DOI: 10.1016/j.apr.2020.12.007  出版年: FEB 2021  

摘要: The goal of this study was to identify the relative contribution of fossil and non-fossil contributions to PM2.5 carbonaceous aerosols (CAs) in PM2.5 pollution events. To achieve this, the pollution characteristics and source apportionments of CAs using radiocarbon (C-14) and organic tracers (anhydrosugar) were determined during a long-lasting winter haze episode (Jan. 13-24, 2018) in Xiangyang, central China. Non-fossil sources (biofuel, biomass burning, and biogenic emissions) contributed 74 +/- 3% and 35 +/- 2% to organic carbon (OC, 20.7 +/- 6.79 mu g/m(3)) and elemental carbon (EC, 6.48 +/- 1.79 mu g/m(3)), respectively. During the winter haze episode, CAs were derived from primary biofuel and biomass burning-derived OC (POCbb, 27.3 +/- 4%), secondary biofuel and biomass burning-derived OC (SOCbb, 26.7 +/- 5%), fossil sources-derived EC (ECf, 15.4 +/- 3%), secondary fossil sources-derived OC (SOCf, 14.7 +/- 1%), biofuel and biomass burning-derived EC (ECbb, 8.4 +/- 2%), primary fossil sources-derived OC (POCf, 5.5 +/- 1%), and secondary biogenic sources-derived OC (SOCbio, 2.0 +/- 1%). Biofuel and biomass burning contributed more to PM2.5 pollution compared to traffic exhaust, which indicated that the public and government should pay attention to control biofuel and biomass burning in Xiangyang, central China.

入藏号: WOS:000616932200002

語言: English

文獻類型: Article

作者關鍵詞: Haze; Source apportionment; Carbonaceous aerosols; Organic tracers; Radiocarbon; Central China

KeyWords Plus: FINE-PARTICLE EMISSIONS; NON-FOSSIL SOURCES; REGIONAL BACKGROUND SITE; CHEMICAL-CHARACTERIZATION; ELEMENTAL CARBON; MONOSACCHARIDE ANHYDRIDES; ATMOSPHERIC AEROSOLS; FIREPLACE COMBUSTION; SEASONAL-VARIATIONS; YANGTZE-RIVER

地址: [Jiang, Huimeng; Zhan, Lingxi; Xiao, Han; Song, He; Wang, Zuwu; Cheng, Hairong] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

[Geng, Xiaofei; Cheng, Zhineng; Tang, Jiao; Li, Jiangtao; Li, Jun; Zhang, Gan] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China.

[Geng, Xiaofei; Cheng, Zhineng; Tang, Jiao; Li, Jiangtao; Li, Jun; Zhang, Gan] Chinese Acad Sci, State Key Lab Isotope Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China.

[Wang, Tao] Xiangyang Environm Protect Monitoring Stn, Xiangyang 441021, Peoples R China.

通訊作者地址: Wang, ZW; Cheng, HR (通訊作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

電子郵件地址: zwwang@whu.edu.cn; chenghr@whu.edu.cn

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