DOI: 10.1016/j.atmosenv.2015.02.071
Scopus记录号: 2-s2.0-84923928911
论文题名: Evolution of surface O3 and PM2.5 concentrations and their relationships with meteorological conditions over the last decade in Beijing
作者: Zhang Z ; , Zhang X ; , Gong D ; , Quan W ; , Zhao X ; , Ma Z ; , Kim S ; -J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 108 起始页码: 67
结束页码: 75
语种: 英语
英文关键词: Beijing
; Haze days
; Meteorological factors
; O3
; PM2.5
Scopus关键词: Rural areas
; Wind
; Beijing
; Composite method
; Correlation coefficient
; Haze days
; Mean concentrations
; Meteorological condition
; Meteorological factors
; Urban and rural areas
; Long Term Evolution (LTE)
; ozone
; atmospheric pollution
; climate effect
; concentration (composition)
; environmental assessment
; haze
; ozone
; particle size
; pollution monitoring
; wind velocity
; air pollutant
; air pollution
; air quality standard
; ambient air
; Article
; autumn
; chemical reaction
; concentration (parameters)
; controlled study
; environmental parameters
; haze
; high temperature
; humidity
; meteorological phenomena
; meteorology
; particulate matter
; photochemistry
; precipitation
; priority journal
; rural area
; seasonal variation
; spring
; summer
; sun exposure
; surface property
; urban area
; wet deposition
; wind speed
; winter
; Beijing [China]
; China
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: In this study, hourly and daily records since 2005 and correlation, regression and composite methods were used to analyze the long-term evolution of surface O3 and PM2.5 concentrations at the rural station of Shangdianzi (SDZ) and urban station of Baolian (BL) over Beijing and their relationships with meteorological conditions. The results show that the mean concentrations of PM2.5 (O3) decreased (increased) at the urban and rural stations over the last decade. The linear trends of the annual mean concentrations of PM2.5 at BL and SDZ were-31.8ug/m3/10yr (-4.3%/yr) (p<0.01) and-13.3ug/m3/10yr (-2.9%/yr) (p<0.05), respectively. In winter, the mean wind speed (Ws) and relative humidity (RH) were the most closely correlated with O3 at both stations, whereas RH and sunshine hours (S) were most closely correlated with PM2.5. The correlation coefficients and explained variances in spring and autumn were generally less than those in winter and greater than those in summer. Moreover, increase in precipitation can significantly reduce the PM2.5 concentration in both urban and rural areas in Beijing, whereas trace and light precipitation more effectively decreases the O3 concentration. Concentrations of PM2.5 (O3) on haze days increased by 114% (3%) and 162% (20%) compared with that on non-haze days at the urban and rural stations, respectively. This result suggests that haze is a major manifestation of air pollution in Beijing. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81843
Appears in Collections: 气候变化事实与影响
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作者单位: State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, China; Environmental Meteorology Forecast Center of Beijing-Tianjin-Hebei, Chinese Meteorological Administration, Beijing, China; Korea Polar Research Institute, Incheon, South Korea
Recommended Citation:
Zhang Z,, Zhang X,, Gong D,et al. Evolution of surface O3 and PM2.5 concentrations and their relationships with meteorological conditions over the last decade in Beijing[J]. Atmospheric Environment,2015-01-01,108