Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-7127-2017 |
How the OH reactivity affects the ozone production efficiency: case studies in Beijing and Heshan, China | |
Yang, Yudong1; Shao, Min1; Kessel, Stephan2; Li, Yue1; Lu, Keding1; Lu, Sihua1; Williams, Jonathan2; Zhang, Yuanhang1; Zeng, Liming1; Noelscher, Anke C.2,5; Wu, Yusheng1,6; Wang, Xuemei3; Zheng, Junyu4 | |
2017-06-15 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Germany; USA; Finland |
英文摘要 | Total OH reactivity measurements were conducted on the Peking University campus (Beijing) in August 2013 and in Heshan (Guangdong province) from October to November 2014. The daily median OH reactivity was 20 +/- 11 s(-1) in Beijing and 31 +/- 20 s(-1) in Heshan, respectively. The data in Beijing showed a distinct diurnal pattern with the maxima over 27 s(-1) in the early morning and minima below 16 s(-1) in the afternoon. The diurnal pattern in Heshan was not as evident as in Beijing. Missing reactivity, defined as the difference between measured and calculated OH reactivity, was observed at both sites, with 21% missing reactivity in Beijing and 32% missing reactivity in Heshan. Unmeasured primary species, such as branched alkenes, could contribute to missing reactivity in Beijing, especially during morning rush hours. An observation-based model with the RACM2 (Regional Atmospheric Chemical Mechanism version 2) was used to understand the daytime missing reactivity in Beijing by adding unmeasured oxygenated volatile organic compounds and simulated intermediates of the degradation from primary volatile organic compounds (VOCs). However, the model could not find a convincing explanation for the missing reactivity in Heshan, where the ambient air was found to be more aged, and the missing reactivity was presumably attributed to oxidized species, such as unmeasured aldehydes, acids and dicarbonyls. The ozone production efficiency was 21% higher in Beijing and 30% higher in Heshan when the model was constrained by the measured reactivity, compared to the calculations with measured and modeled species included, indicating the importance of quantifying the OH reactivity for better understanding ozone chemistry. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403558400003 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; AMAZON RAIN-FOREST ; PEARL RIVER DELTA ; COMPREHENSIVE OBSERVATIONS ; METROPOLITAN-AREA ; PROBE TECHNIQUE ; BOREAL FOREST ; CHEMISTRY ; ISOPRENE ; SUMMER |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/21667 |
专题 | 地球科学 |
作者单位 | 1.Peking Univ, Coll Environm Sci & Engn, State Joint Key Lab Environm Simulat & Pollut Con, Beijing, Peoples R China; 2.Max Plank Inst Chem, Dept Atmospher Chem, Mainz, Germany; 3.Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China; 4.South China Univ Technol, Sch Environm Sci & Engn, Guangzhou, Guangdong, Peoples R China; 5.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 6.Univ Helsinki, Dept Phys, Helsinki, Finland |
推荐引用方式 GB/T 7714 | Yang, Yudong,Shao, Min,Kessel, Stephan,et al. How the OH reactivity affects the ozone production efficiency: case studies in Beijing and Heshan, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(11). |
APA | Yang, Yudong.,Shao, Min.,Kessel, Stephan.,Li, Yue.,Lu, Keding.,...&Zheng, Junyu.(2017).How the OH reactivity affects the ozone production efficiency: case studies in Beijing and Heshan, China.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(11). |
MLA | Yang, Yudong,et al."How the OH reactivity affects the ozone production efficiency: case studies in Beijing and Heshan, China".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.11(2017). |
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