Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.01.014 |
Summertime C-1-C-5 alkyl nitrates over Beijing, northern China: Spatial distribution, regional transport, and formation mechanisms | |
Sun, Jingjing1; Li, Zeyuan1; Xue, Likun1; Wang, Tao2; Wang, Xinfeng1; Gao, Jian3; Nie, Wei4; Simpson, Isobel J.5; Gao, Rui3; Blake, Donald R.5; Chai, Fahe3; Wang, Wenxing1,3 | |
2018-05-15 | |
发表期刊 | ATMOSPHERIC RESEARCH |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 204页码:102-109 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Alkyl nitrates (RONO2) are an important class of nitrogen oxides reservoirs in the atmosphere and play a key role in tropospheric photochemistry. Despite the increasing concern for photochemical air pollution over China, the knowledge of characteristics and formation mechanisms of alkyl nitrates in this region is limited. We analyzed C-1-C-5 alkyl nitrates measured in Beijing at a polluted urban site in summer 2008 and at a downwind rural site in summers of both 2005 and 2008. Although the abundances of NOx, and hydrocarbons were much lower at the rural site, the mixing ratios of RONO2 were comparable between both sites, emphasizing the regional nature of alkyl nitrate pollution. Regional transport of urban plumes governed the elevated RONO2 levels at the rural site. The concentrations of C-1-C-2 RONO2 were significantly higher at the rural site in 2008 compared to 2005 despite a decline in NO and anthropogenic VOCs, mainly owing to enhanced contributions from biogenic VOCs. The photochemical formation regimes of RONO2 were evaluated by both a simplified sequential reaction model and a detailed master chemical mechanism box model. The observed C-4-C-5 RONO2 levels can be well explained by the photochemical degradation of n-butane and n-pentane, while the sources of C-1-C-3 RONO2 were rather complex. In addition to the C-1-C-3 alkanes, biogenic VOCs and reactive aromatics were also important precursors of methyl nitrate, and alkenes and long-chain alkanes contributed to the formation of C-2-C-3 RONO2. This study provides insights into the spatial distribution, inter-annual variation and photochemical formation mechanisms of alkyl nitrate pollution over the Beijing area. |
英文关键词 | Alkyl nitrate Master chemical mechanism Observation-based model Regional transport Beijing |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000428494800009 |
WOS关键词 | TERM ATMOSPHERIC MEASUREMENTS ; RIVER DELTA REGION ; ORGANIC-COMPOUNDS ; OZONE ; VARIABILITY ; PRECURSORS ; POLLUTANTS ; O-3 |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/38310 |
专题 | 地球科学 |
作者单位 | 1.Shandong Univ, Environm Res Inst, Jinan, Shandong, Peoples R China; 2.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China; 3.Chinese Res Inst Environm Sci, Beijing, Peoples R China; 4.Nanjing Univ, Sch Atmospher Sci, Joint Int Res Lab Atmospher & Earth Syst Sci, Nanjing, Jiangsu, Peoples R China; 5.Univ Calif Irvine, Dept Chem, Irvine, CA USA |
推荐引用方式 GB/T 7714 | Sun, Jingjing,Li, Zeyuan,Xue, Likun,et al. Summertime C-1-C-5 alkyl nitrates over Beijing, northern China: Spatial distribution, regional transport, and formation mechanisms[J]. ATMOSPHERIC RESEARCH,2018,204:102-109. |
APA | Sun, Jingjing.,Li, Zeyuan.,Xue, Likun.,Wang, Tao.,Wang, Xinfeng.,...&Wang, Wenxing.(2018).Summertime C-1-C-5 alkyl nitrates over Beijing, northern China: Spatial distribution, regional transport, and formation mechanisms.ATMOSPHERIC RESEARCH,204,102-109. |
MLA | Sun, Jingjing,et al."Summertime C-1-C-5 alkyl nitrates over Beijing, northern China: Spatial distribution, regional transport, and formation mechanisms".ATMOSPHERIC RESEARCH 204(2018):102-109. |
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