Seasonal variations of anhydrosugars in PM2.5 in the Pearl River Delta Region, China | |
Ho, KF (Ho, Kin Fai)[ 1,2 ]; Engling, G (Engling, Guenter)[ 3 ]; Ho, SSH (Ho, Steven Sai Hang)[ 2,4 ]; Huang, RJ (Huang, Rujin)[ 5,6 ]; Lai, SC (Lai, Senchao)[ 7 ]; Cao, JJ (Cao, Junji)[ 2 ]; Lee, SC (Lee, Shun Cheng)[ 8 ] | |
2014 | |
发表期刊 | TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY |
卷号 | 66页码:22577 |
文章类型 | 期刊论文 |
摘要 | Anhydrosugars including levoglucosan and mannosan are the most effective organic tracers for biomass burning aerosol in the atmosphere. In this study, to investigate the contribution of biomass burning emissions to the aerosol burden in the Pearl River Delta (PRD) region, China, 24-hour integrated PM2.5 samples were collected simultaneously at four locations, (i) Guangzhou (GZ), (ii) Zhaoqing (ZQ) in Guangdong province, (iii) Hok Tsui (HT) and (iv) Hong Kong Polytechnic University (PU) in Hong Kong, in four seasons between 2006 and 2007. Levoglucosan and mannosan, together with water-soluble inorganic ions and water-soluble organic carbon (WSOC), were determined to elucidate the seasonal and spatial variations in biomass burning contributions. The concentrations of levoglucosan and mannosan were on average 82.4 +/- 123 and 5.8 +/- 8.6 ng m(-3), respectively. The WSOC concentrations ranged from 0.2 to 9.4 mu g m(-3), with an average of 2.1 +/- 1.6 mg m(-3). The relative contributions of biomass burning emissions to OC were 33% in QZ, 12% in GZ, 4% at PU and 5% at HT, respectively, estimated by the measured levoglucosan to organic carbon ratio (LG/OC) relative to literature-derived LG/OC values. The contributions from biomass burning emissions were in general 1.7-2.8 times higher in winter than those in other seasons. Further, it was inferred from diagnostic tracer ratios that a significant fraction of biomass burning emissions was derived from burning of hard wood and likely also from field burning of agricultural residues, such as rice straw, in the PRD region. Our results highlight the contributions from biomass/biofuel burning activities on the regional aerosol budget in South China. |
关键词 | Fine Aerosol Biomass Burning Wsoc Levoglucosan Pearl River Delta |
DOI | 10.3402/tellusb.v66.22577 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/9722 |
专题 | 粉尘与环境研究室 |
通讯作者 | Ho, KF (Ho, Kin Fai)[ 1,2 ] |
作者单位 | 1.1The JockeyClub School of Public Health and Primary Care, The Chinese University of Hong Kong; 2.SKLLQG, Institute ofEarth Environment, Chinese Academy of Sciences, Xi’an, China; 3.Department of Biomedical Engineering andEnvironmental Sciences, National Tsing Hua University, Hsinchu 300, Taiwan; 4.Division of AtmosphericSciences, Desert Research Institute, Reno, NV 89512, USA; 5.Laboratory of Atmospheric Chemistry,Paul Scherrer Institute (PSI), 5232 Villigen, Switzerland; 6.Centre for Climate and Air Pollution Studies,Ryan Institute, National University of Ireland Galway, University Road, Galway, Ireland; 7.College ofEnvironment and Energy, South China University of Technology, Guangdong, China; 8.Department of Civiland Structural Engineering, Research Center of Urban Environmental Technology and Management,The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong |
推荐引用方式 GB/T 7714 | Ho, KF ,Engling, G ,Ho, SSH ,et al. Seasonal variations of anhydrosugars in PM2.5 in the Pearl River Delta Region, China[J]. TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY,2014,66:22577. |
APA | Ho, KF .,Engling, G .,Ho, SSH .,Huang, RJ .,Lai, SC .,...&Lee, SC .(2014).Seasonal variations of anhydrosugars in PM2.5 in the Pearl River Delta Region, China.TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY,66,22577. |
MLA | Ho, KF ,et al."Seasonal variations of anhydrosugars in PM2.5 in the Pearl River Delta Region, China".TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY 66(2014):22577. |
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