A case study on the characterization of non-methane hydrocarbons over the South China Sea: Implication of land-sea air exchange
文献类型：期刊论文
| 作者 | Song, Junwei2,6; Zhang, Yingyi2; Zhang, Yanli1; Yuan, Qi2,7; Zhao, Yan2,3; Wang, Xinming1; Zou, Shichun4; Xu, Weihai5; Lai, Senchao2 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2020 |
| 卷号 | 717页码:134754 |
| 关键词 | NMHCs South China Sea Continental outflow Ship emissions Ozone formation potential |
| ISSN号 | 1879-1026 |
| DOI | 10.1016/j.scitotenv.2019.134754 |
| 英文摘要 | We present the characteristics of non-methane hydrocarbons (NMHCs) over the northern South China Sea (SCS) during a cruise campaign from September to October 2013. The mixing ratios of the total NMHCs ranged from 1.45 to 7.13 ppbv with an average of 3.54 +/- 1.81 ppbv. Among the measured NMHCs, alkanes and aromatics were the major groups, accounting for 45.8 +/- 8.7% and 28.7 +/- 12.3% of the total NMHCs, respectively. Correlations of NMHCs with typical source tracers suggest that light alkanes and benzene were largely contributed by vehicular exhaust via long-range transport, while the other aromatics might be related to industrial sources and marine ship emissions. The spatial variations of NMHCs were observed with higher mixing ratios of NMHCs in the samples collected in the offshore areas than those in the coastal areas. Air mass back-trajectory analysis and diagnostic ratios of NMHCs show that the elevations of the total NMHCs were caused by the regional pollution transport from the southeast coast of China and/or southern China. The ozone formation potentials (OFPs) of NMHCs were calculated and the results show that the aromatics associated with marine ship emissions were the important contributors to the total OFP. This study provides useful information on the interaction between continental outflow and marine atmosphere. (C) 2019 Elsevier B.V. All rights reserved. |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18546]  |
| 专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
| 作者单位 | 1.South China Univ Technol, Sch Environm & Energy, Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Peoples R China 2.South China Univ Technol, Sch Environm & Energy, Key Lab Pollut Control & Ecosyst Restorat Ind Clu, Minist Educ, Guangzhou 510006, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 4.Guangdong Environm Monitoring Ctr, Guangzhou, Peoples R China 5.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou, Peoples R China 6.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Peoples R China 7.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Hermann von Helmholtz Pl 1, Eggenstein Leopoldshafen, Germany 8.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, Junwei,Zhang, Yingyi,Zhang, Yanli,et al. A case study on the characterization of non-methane hydrocarbons over the South China Sea: Implication of land-sea air exchange[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,717:134754. |
| APA | Song, Junwei.,Zhang, Yingyi.,Zhang, Yanli.,Yuan, Qi.,Zhao, Yan.,...&Lai, Senchao.(2020).A case study on the characterization of non-methane hydrocarbons over the South China Sea: Implication of land-sea air exchange.SCIENCE OF THE TOTAL ENVIRONMENT,717,134754. |
| MLA | Song, Junwei,et al."A case study on the characterization of non-methane hydrocarbons over the South China Sea: Implication of land-sea air exchange".SCIENCE OF THE TOTAL ENVIRONMENT 717(2020):134754. |
入库方式： OAI收割
来源：南海海洋研究所
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。