Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD030833 |
An Ozone "Pool" in South China: Investigations on Atmospheric Dynamics and Photochemical Processes Over the Pearl River Estuary | |
Zeren, Yangzong1; Guo, Hai1; Lyu, Xiaopu1; Jiang, Fei2; Wang, Yu1; Liu, Xufei1; Zeng, Lewei1; Li, Mei3,4; Li, Lei4 | |
2019-11-19 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:22页码:12340-12355 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Pearl River Estuary (PRE) has been recognized as one of the key areas in South China experiencing severe air pollution. To understand the photochemical pollution over PRE, intensive measurements of O-3 and its precursors were simultaneously conducted at a suburban site on the east bank of PRE (Tung Chung, TC) in Hong Kong and a rural site on the west bank (Qi'ao Island, QAI) in Zhuhai from 25 September to 29 November 2016. Three and sixteen O-3 episode days (days with the maximum hourly O-3 higher than 100 ppbv) were captured at TC and QAI, respectively. On the three days when O-3 episodes occurred at TC, QAI also suffered from O-3 episodes, which were all associated with tropical cyclones (typhoons). As a downwind site of PRE when northwesterly winds prevailed, TC displayed a higher maximum hourly O-3 than QAI on these three days. In contrast, the other thirteen episodes that solely occurred at QAI were generally under northeasterly winds, which brought more coastal air to TC and led to lower levels of O-3 at this site. In addition, the stronger titration of the locally emitted NO to O-3 also accounted for the lower O-3 at TC on these days. The simulations by Weather Research and Forecasting coupled with Chemistry model indicated that the interactions of synoptic winds and mesoscale breezes led to relatively weak winds and long residence time for air pollutants over the PRE, thereby air pollution accumulation. This provided the likelihood of intensive chemical productions of O-3 over PRE, with the production rates even higher than those in the surrounding land areas. As such, it was concluded that PRE was a "pool" of O-3, where atmospheric dynamics caused the accumulation of air pollutants and subsequently intensive photochemical reactions. The findings in this study may also apply to the other estuaries connecting terrestrial and marine systems over the world. |
英文关键词 | ozone pollution atmospheric dynamics photochemical reactions South China WRF-Chem |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000497068000001 |
WOS关键词 | GROUND-LEVEL OZONE ; VOLATILE ORGANIC-COMPOUNDS ; SEA-LAND BREEZES ; AIR-QUALITY ; HONG-KONG ; SURFACE OZONE ; DELTA REGION ; TROPOSPHERIC OZONE ; ANTHROPOGENIC EMISSIONS ; DIFFERENT ELEVATIONS |
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/225793 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China; 2.Nanjing Univ, Int Inst Earth Syst Sci, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China; 3.Jinan Univ, Inst Mass Spectrometer & Atmospher Environm, Guangzhou, Guangdong, Peoples R China; 4.Guangzhou Hexin Mass Spectrometry Technol Co Ltd, Guangzhou, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Zeren, Yangzong,Guo, Hai,Lyu, Xiaopu,et al. An Ozone "Pool" in South China: Investigations on Atmospheric Dynamics and Photochemical Processes Over the Pearl River Estuary[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(22):12340-12355. |
APA | Zeren, Yangzong.,Guo, Hai.,Lyu, Xiaopu.,Jiang, Fei.,Wang, Yu.,...&Li, Lei.(2019).An Ozone "Pool" in South China: Investigations on Atmospheric Dynamics and Photochemical Processes Over the Pearl River Estuary.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(22),12340-12355. |
MLA | Zeren, Yangzong,et al."An Ozone "Pool" in South China: Investigations on Atmospheric Dynamics and Photochemical Processes Over the Pearl River Estuary".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.22(2019):12340-12355. |
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