Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-3025-2019 |
Causes of a continuous summertime O-3 pollution event in Jinan, a central city in the North China Plain | |
Lyu, Xiaopu1; Wang, Nan2; Guo, Hai1; Xue, Likun3; Jiang, Fei4; Zeren, Yangzong1; Cheng, Hairong5; Cai, Zhe4; Han, Lihui6; Zhou, Ying6 | |
2019-03-08 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:5页码:3025-3042 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | In the summer of 2017, measurements of ozone (O-3) and its precursors were carried out at an urban site in Jinan, a central city in the North China Plain (NCP). A continuous O-3 pollution event was captured during 4-11 August, with the maximum hourly O-3 mixing ratio reaching 154.1 ppbv. Model simulation indicated that local photochemical formation and regional transport contributed 14.0 +/- 2.3 and 18.7 +/- 4.0 ppbv h(-1), respectively, to the increase in O-3 during 09:00-15:00 LT (local time) in this event. For local O-3 formation, the calculated OH reactivities of volatile organic compounds (VOCs) and carbon monoxide (CO) were comparable between O-3 episodes and non-episodes (p > 0.05), so was the OH reactivity of nitrogen oxides (NOx). However, the ratio of OH reactivity of VOCs and CO to that of NOx increased from 2.0 +/- 0.4 s(-1) s(1) during non-episodes to 3.7 +/- 0.7 s(-1) s(1) during O-3 episodes, which resulted in the change in the O-3 formation mechanism from the VOC-limited regime before the O-3 pollution event to the transitional regime during the event. Correspondingly, the simulated local O-3 production rate during the event (maximum: 21.3 ppbv h(-1)) was markedly higher than that before the event (p < 0.05) (maximum: 16.9 ppbv h(-1)). Given that gasoline and diesel exhaust made large contributions to the abundance of O-3 precursors and the O-3 production rate, constraint on vehicular emissions is the most effective strategy to control O-3 pollution in Jinan. The NCP has been confirmed as a source region of tropospheric O-3, where the shift in regimes controlling O-3 formation like the case presented in this study can be expected across the entire region, due to the substantial reductions of NOx emissions in recent years. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460817300002 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; GROUND-LEVEL OZONE ; SURFACE OZONE ; AIR-POLLUTION ; HONG-KONG ; TROPOSPHERIC DEGRADATION ; ANTHROPOGENIC EMISSIONS ; ATMOSPHERIC CHEMISTRY ; DIFFERENT ELEVATIONS ; REGIONAL TRANSPORT |
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/27235 |
专题 | 地球科学 |
作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Air Qual Studies, Hong Kong, Peoples R China; 2.China Meteorol Adm, Inst Trop & Marine Meteorol, Div Environm Meteorol, Guangzhou, Guangdong, Peoples R China; 3.Shandong Univ, Environm Res Inst, Jinan, Shandong, Peoples R China; 4.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China; 5.Wuhan Univ, Dept Environm Engn, Sch Resource & Environm Sci, Wuhan, Hubei, Peoples R China; 6.Beijing Univ Technol, Dept Environm Sci, Coll Environm & Energy Engn, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Lyu, Xiaopu,Wang, Nan,Guo, Hai,et al. Causes of a continuous summertime O-3 pollution event in Jinan, a central city in the North China Plain[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(5):3025-3042. |
APA | Lyu, Xiaopu.,Wang, Nan.,Guo, Hai.,Xue, Likun.,Jiang, Fei.,...&Zhou, Ying.(2019).Causes of a continuous summertime O-3 pollution event in Jinan, a central city in the North China Plain.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(5),3025-3042. |
MLA | Lyu, Xiaopu,et al."Causes of a continuous summertime O-3 pollution event in Jinan, a central city in the North China Plain".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.5(2019):3025-3042. |
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