DOI: 10.1016/j.atmosenv.2019.117108
论文题名: Observed dependence of surface ozone on increasing temperature in Shanghai, China
作者: Gu Y. ; Li K. ; Xu J. ; Liao H. ; Zhou G.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 221 语种: 英语
英文关键词: Air pollution
; Atmospheric chemistry
; Climate change
; Emission control
; Isoprene
; Nitrogen oxides
; Ozone
; Temperature
; Temperature distribution
; Urban growth
; Volatile organic compounds
; Biogenic volatile organic compounds
; Emission reduction
; High temperature
; Increasing temperatures
; Isoprene emission
; Planning strategies
; Shanghai
; Temperature dependence
; Atmospheric temperature
; isoprene
; nitrogen oxide
; ozone
; volatile organic compound
; anthropogenic source
; atmospheric chemistry
; biogenic emission
; concentration (composition)
; isoprene
; nitric oxide
; Oceania Ecozone
; ozone
; temperature effect
; urban area
; urban pollution
; volatile organic compound
; air quality
; Article
; China
; circadian rhythm
; city planning
; climate warming
; high temperature
; pollution
; priority journal
; reduction (chemistry)
; summer
; temperature dependence
; urban area
; China
; Chongming Island
; Dongtan
; Shanghai
; Shanghai
学科: Atmospheric chemistry
; Isoprene
; Ozone
; Shanghai
; Temperature
中文摘要: Eight-year measurements at urban (Xujiahui, XJH) and remote (Dongtan, DT) sites during time period 2010–2017 are employed to examine the surface ozone (O3)-temperature relationship in Shanghai, China. O3 pollution was getting worse in Shanghai, with daily maximum O3 concentrations increasing at a rate of 2.47 ppb yr−1 in urban site. The climate penalty (mO3-T), defined as the slope of O3 change with increasing temperature, exhibited largest values in summer. Summertime O3 increased faster as temperature increased, with mean rates of 6.65 and 13.68 ppb °C−1, respectively in XJH and DT above 30 °C. Sensitivity experiments indicate that the temperature dependence of biogenic volatile organic compounds (VOCs) emissions could be the main chemical driver of the high-temperature O3 response in summer, since the simulated mO3-T are most sensitive to changes of biogenic isoprene emissions. NOx emission reductions strengthened the high-temperature O3 response, with summer mean mO3-T values increasing from 1.52 ppb°C−1 during 2010–2012 to 2.97 ppb °C−1 during 2013–2017. As NOx emissions continue to decrease, the O3 production in urban Shanghai tend to become transitional and the dependence of mO3-T on the biogenic VOC emissions might be weakened. Model results suggest that anthropogenic VOC emission reductions would effectively relieve O3 pollution and reduce the sensitivity of O3 to increasing temperatures in urban Shanghai. Tailored emission reductions as well as scientific city planning strategies should be formulated to balance VOC/NOx ratios, so as to wrestle with the challenges for future O3 pollution under a warming climate. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161104
Appears in Collections: 气候变化与战略
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作者单位: Shanghai Typhoon Institute, Shanghai Meteorological Service, Shanghai, 200030, China; Shanghai Key Laboratory of Meteorology and Health, Shanghai Meteorological Service, Shanghai, 200030, China; John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States; Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China
Recommended Citation:
Gu Y.,Li K.,Xu J.,et al. Observed dependence of surface ozone on increasing temperature in Shanghai, China[J]. Atmospheric Environment,2020-01-01,221