Assessment of the H2O2 budget at an urban site concerning the HO2 underprediction and the vertical transport from residual layers
文献类型：期刊论文
| 作者 | Guo, Jia ; Wang, Zhe; Cui, Yaru; Zhang, Xiaoshan
|
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 272期号:0页码:118952 |
| 关键词 | ATMOSPHERIC PEROXIDES HYDROGEN-PEROXIDE PHASE CHEMISTRY DRY DEPOSITION SULFUR-DIOXIDE RURAL SITE PART 2 OZONE OH PHOTOCHEMISTRY |
| ISSN号 | 1352-2310 |
| 英文摘要 | Field observation of H2O2 was conducted at an urban site in Beijing from Sep.23rd to Nov.4th of 2018. The daily peak concentrations of H2O2 and organic peroxides (OPs) during the measurement were 0.57 ppbv (Range: 0.07-1.89 ppbv) and 0.16 ppbv (Range 0.06-0.35 ppbv). Using an observation based model, the modeled HO2 level reproduced a much lower H2O2 production rate than the observation, especially in the morning under the weak wind, non-turbulent surface winds conditions. With the modeled-HO2 concentration corrected based on the previously reported observed/modeled HO2 ratio in this city, the daily integrated H2O2 production rate increased by 144%-164%, which is important but still not enough to explain the observed high H2O2 in the lightly polluted and polluted days. Heterogeneous production of H2O2 on aerosols and the overestimation of H2O2 removal rates were examined not the underlying causes of this additional H2O2 missing source. H2O2 concentrations in residual layers were evaluated. The residual layer was revealed a stronger reservoir of H2O2 than its reservoir effect on O-3. In the morning of non-turbulent conditions at the urban site, the residual layersH(2)O(2) were estimated about 20-80 times of the ground surface H2O2 before the air layers vertical mixing. The vertical mixing significantly affects gaseous H2O2 concentration on the ground in the morning. This work highlights the importance to consider the HO2 underestimation and air mass vertical mixing in atmospheric H2O2 studies. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47204]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 通讯作者 | Zhang, Xiaoshan |
| 作者单位 | 1.Hong Kong Univ Sci & Technol, Div Environm & Sustainabil, Hong Kong, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.State Grid Eastern Inner Mongolia Elect Power Co L, Elect Power Res Inst, Hohhot 010010, Inner Mongolia, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Jia,Wang, Zhe,Cui, Yaru,et al. Assessment of the H2O2 budget at an urban site concerning the HO2 underprediction and the vertical transport from residual layers[J]. ATMOSPHERIC ENVIRONMENT,2022,272(0):118952. |
| APA | Guo, Jia,Wang, Zhe,Cui, Yaru,&Zhang, Xiaoshan.(2022).Assessment of the H2O2 budget at an urban site concerning the HO2 underprediction and the vertical transport from residual layers.ATMOSPHERIC ENVIRONMENT,272(0),118952. |
| MLA | Guo, Jia,et al."Assessment of the H2O2 budget at an urban site concerning the HO2 underprediction and the vertical transport from residual layers".ATMOSPHERIC ENVIRONMENT 272.0(2022):118952. |
入库方式： OAI收割
来源：生态环境研究中心
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。