DOI: 10.1016/j.atmosenv.2015.08.076
Scopus记录号: 2-s2.0-84941115892
论文题名: Probing the severe haze pollution in three typical regions of China: Characteristics, sources and regional impacts
作者: Wang Q ; , Zhuang G ; , Huang K ; , Liu T ; , Deng C ; , Xu J ; , Lin Y ; , Guo Z ; , Chen Y ; , Fu Q ; , Fu J ; S ; , Chen J
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 76
结束页码: 88
语种: 英语
英文关键词: Formation process
; Haze
; Regional transport
; Sources
Scopus关键词: Chemical analysis
; Coastal zones
; Elementary particle sources
; Lead
; Marine pollution
; Meteorology
; Pollution
; River pollution
; Air mass trajectories
; Anthropogenic pollutants
; Formation process
; Haze
; High relative humidities
; Particle transformation
; Potential source regions
; Regional transport
; Coal combustion
; coal
; zinc ion
; aerosol formation
; air mass
; atmospheric pollution
; atmospheric transport
; chemical composition
; concentration (composition)
; haze
; nitrous oxide
; particulate matter
; phase transition
; pollutant source
; pollutant transport
; pollution monitoring
; regional climate
; relative humidity
; spatiotemporal analysis
; air pollution
; Article
; chemical analysis
; China
; environmental protection
; haze
; humidity
; meteorology
; priority journal
; winter
; Beijing [China]
; China
; East China Sea
; Huaniao
; Pacific Ocean
; Shanghai
; Yangtze Delta
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: PM2.5 with its major chemical components were measured and analyzed during a concurrent haze in Jan. 1-19, 2013 at three sites (Shanghai, Beijing, and Huaniao, a remote isle over the East China Sea) to probe the sources and formation process of such a severe haze over three typical regions in China. The mean PM2.5 concentrations during the severely polluted days reached 180.8 μg m-3, 299.2 μg m-3, and 131.1 μg m-3 in Shanghai, Beijing, and the Huaniao Isle, respectively. The mass ratio of the sum of SO4 2-, NO3 -, and NH4 + to PM2.5 were over 1/3 during the polluted days at all the three sites. Promoted gas-to-particle transformations from acidic SO2 and NOx to SO4 2- and NO3 - under high relative humidity conditions played a major role in the formation of this severe haze. Significant contribution of traffic emissions to the haze formation over China was suggested to be one of the major sources in triggering the heavy haze over China. Specifically, there was a more contribution from traffic in Shanghai than in Beijing as indicated by the higher NO3 -/SO4 2- ratio in Shanghai. In Beijing, the enhanced coal combustion for winter heating along with the traffic emission was suggested to be the major two sources of this haze episode. Typical pollution elements such as As, Cd, and Pb as well as Cl- and K+ were substantially enhanced in the severely polluted days. Although the Huaniao Isle is located in the remote oceanic area as a background site, pollution elements, secondary ions, and K+ all increased substantially during the polluted days. As visualized by the backward air mass trajectories associated with the potential source region identification technique, air masses that passed over Northern China and Yangtze River Delta evidently invaded the offshore areas of Eastern China. The ratios of As, Cd, Cu, Zn, and K+ to Al at the Huaniao Isle were closer to those of Beijing rather than Shanghai, indicating that the marine aerosol over the East China Sea had been significantly polluted via the long-range transport of anthropogenic pollutants originating from Northern China. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81510
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering, Fudan University, Shanghai, China; Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, TN, United States; Shanghai Environmental Monitoring Center, Shanghai, China; School of Life Sciences, Fudan University, Shanghai, China
Recommended Citation:
Wang Q,, Zhuang G,, Huang K,et al. Probing the severe haze pollution in three typical regions of China: Characteristics, sources and regional impacts[J]. Atmospheric Environment,2015-01-01,120