| Characteristics and sources of non-methane hydrocarbons in background atmospheres of eastern, southwestern, and southern China | |
| Tang, J. H. ; Chan, L. Y. ; Chang, C. C. ; Liu, Shaw ; Li, Y. S. | |
| 发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
 |
| ISSN | 0148-0227 |
| 2009 | |
| 卷号 | 114页码:- |
| 关键词 | Volatile Organic-compounds Long-range Transport Pearl River-delta Air-pollution Remote Site Rural Site Hong-kong Source Apportionment Tropospheric Ozone Compound Emissions |
| 产权排序 | Yantai Inst Coastal Zone Res Sustainable Dev;Hong Kong Polytech Univ, Dept Civil & Struct Engn;Acad Sinica, Res Ctr Environm Changes |
| 通讯作者 | Tang, JH, Yantai Inst Coastal Zone Res Sustainable Dev, Chunhui Rd 17, Yantai 264003, Shandong, Peoples R China |
| 作者部门 | 污染过程与控制实验室 |
| 英文摘要 | Non-methane hydrocarbons (NMHCs) play very important roles in atmospheric chemistry, yet little is known about their abundance in the atmosphere of China, especially in the background atmospheres. Measurements of C-2-C-10 NMHCs were concurrently carried out at two remote background sites and one rural background site in April and May 2004 in this study: Tengchong Mountain (TM) in Yunnan province on the border of southwestern China; Jianfeng Mountain (JM) on the southwest coast of Hainan Island, southern China; and Lin'an (LA) in Zhejiang province in eastern China. Additional samples were collected at an urban site, Tengyue Town (TT, about 10 km from TM), to obtain local urban NMHC profiles. NMHC levels in these background sites were compared with other rural and remote sites in Asia and other global background stations. In the urban site of TT, local biofuel combustion was the major contributor to the high levels of ethene, ethyne, and ethane. In LA, the major sources of NMHCs were the emissions from fossil fuel and biofuel combustion and from industrial solvent use. Compared with another study conducted in 2001, toluene levels had increased by 75% in 2004 in this study, whereas the levels of other anthropogenic hydrocarbons remained at the same levels. Local industrial emissions and transports from the Yangtze River Delta were the major sources of toluene, ethylbenzene, and xylenes in LA. While in TM, the major sources were regional biofuel combustions and biomass burning emissions from Southeast Asia. Long-range transport of air masses from Southeast Asia was the major source of NMHCs in JM in spring. JM showed the lowest levels of most hydrocarbons among the three background sites. Several hydrocarbon molar ratios, such as benzene/toluene and ethane/propane, were used to characterize the signatures of air masses from different regions. |
| 资助机构 | Council of Hong Kong [PolyU 5048/02E, PolyU 5131/04E]; Hong Kong Polytechnic University [A504]; NSFC [40590391] |
| 收录类别 | sci |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3520 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室 |
| 推荐引用方式 GB/T 7714 | Tang, J. H.,Chan, L. Y.,Chang, C. C.,et al. Characteristics and sources of non-methane hydrocarbons in background atmospheres of eastern, southwestern, and southern China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2009,114:-. |
| APA | Tang, J. H.,Chan, L. Y.,Chang, C. C.,Liu, Shaw,&Li, Y. S..(2009).Characteristics and sources of non-methane hydrocarbons in background atmospheres of eastern, southwestern, and southern China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,114,-. |
| MLA | Tang, J. H.,et al."Characteristics and sources of non-methane hydrocarbons in background atmospheres of eastern, southwestern, and southern China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 114(2009):-. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Characteristics and （918KB） | 开放获取 | -- | 浏览 下载 | |||
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。
修改评论