Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-11409-2018 |
Evaluation of OH and HO2 concentrations and their budgets during photooxidation of 2-methyl-3-butene-2-ol (MBO) in the atmospheric simulation chamber SAPHIR | |
Novelli, Anna1; Kaminski, Martin1,3; Rolletter, Michael1; Acir, Ismail-Hakki1,4; Bohn, Birger1; Dorn, Hans-Peter1; Li, Xin1,5; Lutz, Anna2; Nehr, Sascha1,6; Rohrer, Franz1; Tillmann, Ralf1; Wegener, Robert1; Holland, Frank1; Hofzumahaus, Andreas1; Kiendler-Scharr, Astrid1; Wahner, Andreas1; Fuchs, Hendrik1 | |
2018-08-15 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:15页码:11409-11422 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Sweden; Peoples R China |
英文摘要 | Several previous field studies have reported unexpectedly large concentrations of hydroxyl and hydroperoxyl radicals (OH and HO2, respectively) in forested environments that could not be explained by the traditional oxidation mechanisms that largely underestimated the observations. These environments were characterized by large concentrations of biogenic volatile organic compounds (BVOC) and low nitrogen oxide concentration. In isoprene-dominated environments, models developed to simulate atmospheric photochemistry generally underestimated the observed OH radical concentrations. In contrast, HO2 radical concentration showed large discrepancies with model simulations mainly in non-isoprene-dominated forested environments. An abundant BVOC emitted by lodgepole and ponderosa pines is 2-methyl- 3-butene-2-ol (MBO), observed in large concentrations for studies where the HO2 concentration was poorly described by model simulations. In this work, the photooxidation of MBO by OH was investigated for NO concentrations lower than 200 pptv in the atmospheric simulation chamber SAPHIR at Forschungszentrum Julich. Measurements of OH and HO2 radicals, OH reactivity (kO(H)), MBO, OH precursors, and organic products (acetone and formaldehyde) were used to test our current understanding of the OH-oxidation mechanisms for MBO by comparing measurements with model calculations. All the measured trace gases agreed well with the model results (within 15 %) indicating a well understood mechanism for the MBO oxidation by OH. Therefore, the oxidation of MBO cannot contribute to reconciling the unexplained high OH and HO2 radical concentrations found in previous field studies. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000441652600001 |
WOS关键词 | LASER-INDUCED FLUORESCENCE ; VOLATILE ORGANIC-COMPOUNDS ; HYDROGEN SHIFT REACTIONS ; PEARL RIVER DELTA ; PEROXY-RADICALS ; TROPOSPHERIC DEGRADATION ; PHOTOLYSIS FREQUENCIES ; MODEL-CALCULATIONS ; RAIN-FOREST ; OXIDATION |
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/30757 |
专题 | 地球科学 |
作者单位 | 1.Forschungszentrum Julich, Inst Energy & Climate Res, IEK Troposphere 8, Julich, Germany; 2.Univ Gothenburg, Dept Chem & Mol Biol, Gothenburg, Sweden; 3.Bundesamt Verbraucherschutz, Abt Methodenstandardisierung 5, Referenzlab & Antibiotikaresistenz, Berlin, Germany; 4.Univ Bonn, Inst Nutr & Food Sci, Food Chem, Bonn, Germany; 5.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing, Peoples R China; 6.INBUREX Consulting GmbH, Proc Safety, Hamm, Germany |
推荐引用方式 GB/T 7714 | Novelli, Anna,Kaminski, Martin,Rolletter, Michael,et al. Evaluation of OH and HO2 concentrations and their budgets during photooxidation of 2-methyl-3-butene-2-ol (MBO) in the atmospheric simulation chamber SAPHIR[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(15):11409-11422. |
APA | Novelli, Anna.,Kaminski, Martin.,Rolletter, Michael.,Acir, Ismail-Hakki.,Bohn, Birger.,...&Fuchs, Hendrik.(2018).Evaluation of OH and HO2 concentrations and their budgets during photooxidation of 2-methyl-3-butene-2-ol (MBO) in the atmospheric simulation chamber SAPHIR.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(15),11409-11422. |
MLA | Novelli, Anna,et al."Evaluation of OH and HO2 concentrations and their budgets during photooxidation of 2-methyl-3-butene-2-ol (MBO) in the atmospheric simulation chamber SAPHIR".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.15(2018):11409-11422. |
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