Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-5963-2020 |
Spatial-temporal variations and process analysis of O-3 pollution in Hangzhou during the G20 summit | |
Ni, Zhi-Zhen1; Luo, Kun1; Gao, Yang2; Gao, Xiang1; Jiang, Fei3; Huang, Cheng4; Fan, Jian-Ren1; Fu, Joshua S.5; Chen, Chang-Hong4 | |
2020-05-19 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:10页码:5963-5976 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | Serious urban ozone (O-3) pollution was observed during the campaign of 2016 G20 summit in Hangzhou, China, while other pollutants had been significantly reduced by the short-term emission control measures. To understand the underlying mechanism, the Weather Research Forecast with Chemistry (WRF-Chem) model is used to investigate the spatial and temporal O-3 variations in Hangzhou from 24 August to 6 September 2016. The model is first successfully evaluated and validated for local and regional meteorological and chemical parameters by using the ground and upper-air level observed data. High ozone concentrations, temporally during most of the daytime emission control period and spatially from the surface to the top of the planetary boundary layer, are captured in Hangzhou and even the whole Yangtze River Delta region. Various atmospheric processes are further analyzed to determine the influential factors of local ozone formation through the integrated process rate method. Interesting horizontal and vertical advection circulations of O-3 are observed during several short periods, and the effects of these processes are nearly canceled out. As a result, ozone pollution is mainly attributed to the local photochemical reactions that are not obviously influenced by the emission reduction measures. The ratio of reduction of Volatile Organic Compounds (VOCs) to that of NOx is a critical parameter that needs to be carefully considered for future alleviation of ozone formation. In addition, the vertical diffusion from the upper-air background O-3 also plays an important role in shaping the surface ozone concentration. These results provide insight into urban O-3 formation in Hangzhou and support the Model Intercomparison Study Asia Phase III (MICS-Asia Phase III). |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000537120000004 |
WOS关键词 | YANGTZE-RIVER DELTA ; SURFACE OZONE ; AIR-QUALITY ; REGIONAL TRANSPORT ; NORTHERN CHINA ; PARTICULATE MATTER ; TROPOSPHERIC OZONE ; EMISSION INVENTORY ; LEVEL OZONE ; HONG-KONG |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
URL | 查看原文 |
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/267541 |
专题 | 地球科学 |
作者单位 | 1.Zhejiang Univ, Dept Energy Engn, State Key Lab Clean Energy, Hangzhou 310027, Peoples R China; 2.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ China, Qingdao 266100, Peoples R China; 3.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing, Peoples R China; 4.Shanghai Acad Environm Sci, State Environm Protect Key Lab Cause & Prevent Ur, Shanghai 200233, Peoples R China; 5.Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA |
推荐引用方式 GB/T 7714 | Ni, Zhi-Zhen,Luo, Kun,Gao, Yang,et al. Spatial-temporal variations and process analysis of O-3 pollution in Hangzhou during the G20 summit[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(10):5963-5976. |
APA | Ni, Zhi-Zhen.,Luo, Kun.,Gao, Yang.,Gao, Xiang.,Jiang, Fei.,...&Chen, Chang-Hong.(2020).Spatial-temporal variations and process analysis of O-3 pollution in Hangzhou during the G20 summit.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(10),5963-5976. |
MLA | Ni, Zhi-Zhen,et al."Spatial-temporal variations and process analysis of O-3 pollution in Hangzhou during the G20 summit".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.10(2020):5963-5976. |
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