Characterization of biomass burning tracers in particulate matter at 12 sites in China: Significant increase of coal combustion emitted levoglucosan in northern China during winter
文献类型：期刊论文
| 作者 | Wang, Jun-Qi2,5,6; Ding, Xiang4,5,6; Zhang, Yu-Qing1,5,6; Yu, Qing-Qing3; Cheng, Qian2,5,6; Wang, Qiao-Yun3; Wang, Xin-Ming4,5,6 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2024-10-20 |
| 卷号 | 948页码:11 |
| 关键词 | Biomass burning Organic tracers Spatial and seasonal trend Size distribution Source identification |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2024.174520 |
| 英文摘要 | Biomass burning (BB) is the largest contributor to carbonaceous aerosols globally. Specific organic tracers can track BB particles and identify BB types. At present, there is limited information on the composition of BB tracers on a continental scale. In this study, we conducted year-round sampling of particulate matter (PM) at 12 sites in China. Nine BB tracers were measured in PM with aerodynamic diameters <1.1 mu m (PM<1.1), in the range of 1.1-3.3 mu m (PM1.1-3.3), and >3.3 mu m (PM>3.3). The annual average concentration of these nine BB tracers (& sum;(9) BB tracers) in the total PM was 366 ng m(-3) with the majority of levoglucosan (66 %). The concentration of & sum;(9) BB tracers was higher in northern China than in southern China, especially in winter. & sum;9 BB tracers were most enriched in PM<1.1 (50-61 % in mass), followed by PM1.1-3.3 and PM>3.3. The highest concentrations of & sum;(9) BB tracers were observed in winter, while satellite-recorded fire spots were intensive in autumn and spring. The mismatch of seasonal trends between them indicated that the high levels of BB tracers in winter was not due to open BB. The composition of 4-hydroxybenzoic acid, syringic acid and vanillic acid suggested that the burning of crop residues and softwoods were the major BB types in China. The ratio of levoglucosan to mannosan could neither identify the major BB types in China nor distinguish between BB and coal combustion. Correlation analysis and the PMF model demonstrated that non-BB sources contributed 7 %-58 % to levoglucosan at the 12 sites, with coal combustion being the predominant non-BB source in China, especially in northern urban sites during winter. Our findings suggest that caution should be taken in application of these organic tracers to identify BB types and estimate BB aerosols. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001281187800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/78234]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Ding, Xiang |
| 作者单位 | 1.North Univ China, Sch Environm & Safety Engn, Taiyuan 030051, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Guangdong Ind Polytech, Sch Chem Engn & Technol, Guangzhou 510300, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Peoples R China 5.Guangzhou Inst Geochem, Chinese Acad Sci, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jun-Qi,Ding, Xiang,Zhang, Yu-Qing,et al. Characterization of biomass burning tracers in particulate matter at 12 sites in China: Significant increase of coal combustion emitted levoglucosan in northern China during winter[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,948:11. |
| APA | Wang, Jun-Qi.,Ding, Xiang.,Zhang, Yu-Qing.,Yu, Qing-Qing.,Cheng, Qian.,...&Wang, Xin-Ming.(2024).Characterization of biomass burning tracers in particulate matter at 12 sites in China: Significant increase of coal combustion emitted levoglucosan in northern China during winter.SCIENCE OF THE TOTAL ENVIRONMENT,948,11. |
| MLA | Wang, Jun-Qi,et al."Characterization of biomass burning tracers in particulate matter at 12 sites in China: Significant increase of coal combustion emitted levoglucosan in northern China during winter".SCIENCE OF THE TOTAL ENVIRONMENT 948(2024):11. |
入库方式： OAI收割
来源：广州地球化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。