Journal ArticleDOI
Long-range transport and regional sources of PM2.5 in Beijing based on long-term observations from 2005 to 2010
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This article is published in Atmospheric Research.The article was published on 2015-04-15. It has received 177 citations till now. The article focuses on the topics: Beijing.read more
Citations
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Dominant role of emission reduction in PM 2.5 air quality improvement in Beijing during 2013–2017: a model-based decomposition analysis
Jing Cheng,Jingping Su,Tong Cui,Xiang Li,Xin Dong,Feng Sun,Yan-Yan Yang,Dan Tong,Yixuan Zheng,Yanshun Li,Jin-Xiang Li,Qiang Zhang,Kebin He +12 more
TL;DR: In this article, a detailed bottom-up emission inventory over Beijing, the MEIC regional emission inventory and the WRF-CMAQ (WeatherResearch and Forecasting Model and Community Multiscale Air Quality) model was used to evaluate the effectiveness of clean air actions in Beijing and its surrounding regions.
Journal ArticleDOI
Chemical composition, sources, and aging process of submicron aerosols in Beijing: Contrast between summer and winter
Weiwei Hu,Weiwei Hu,Min Hu,Wei Hu,Jose L. Jimenez,Bin Yuan,Bin Yuan,Bin Yuan,Wentai Chen,Ming Wang,Yusheng Wu,Chen Chen,Zhibin Wang,Zhibin Wang,Jianfei Peng,Limin Zeng,Min Shao +16 more
TL;DR: In this paper, the seasonal characteristics of submicron aerosol (PM1) in Beijing urban areas, a high-resolution time-of-flight aerosol-mass-spectrometer (HR-ToF-AMS) was utilized at an urban site in summer (August to September 2011) and winter (November to December 2010), coupled with multiple state of the art online instruments.
Journal ArticleDOI
Classification of summertime synoptic patterns in Beijing and their associations with boundary layer structure affecting aerosol pollution
Yucong Miao,Jianping Guo,Shuhua Liu,Huan Liu,Zhanqing Li,Zhanqing Li,Wanchun Zhang,Panmao Zhai +7 more
TL;DR: In this paper, the obliquely rotated principal component analysis (PCA) was applied to classify the summertime synoptic conditions over Beijing using the National Centers for Environmental Prediction reanalysis from 2011 to 2014, and investigated their relationships with PBL structure and aerosol pollution by combining numerical simulations, measurements of surface meteorological variables, fine-resolution soundings, the concentration of particles with diameters less than or equal to 2.5 µm, total cloud cover (CLD), and reanalysis data.
Journal ArticleDOI
Roles of regional transport and heterogeneous reactions in the PM2.5 increase during winter haze episodes in Beijing
Qingxia Ma,Yunfei Wu,Daizhou Zhang,Xiaojia Wang,Yunjie Xia,Xinyu Liu,Ping Tian,Zhiwei Han,Xiangao Xia,Yong Wang,Renjian Zhang +10 more
TL;DR: The results indicate that, during the five winter haze episodes, the regional transport from the south was the major reason for the initial-stage PM2.5 increase, while heterogeneous reactions dominated the later elevation.
Journal ArticleDOI
Trends of PM2.5 and Chemical Composition in Beijing, 2000-2015
Jianlei Lang,Yanyun Zhang,Ying Zhou,Shuiyuan Cheng,Dongsheng Chen,Xiurui Guo,Sha Chen,Xiao-Xin Li,Xiaofan Xing,Haiyan Wang +9 more
TL;DR: Wang et al. as mentioned in this paper investigated the long-term trend (2000-2015) of PM25, based on intensive observation and comprehensive literature investigation of PM 25 and its chemical components.
References
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Journal ArticleDOI
High secondary aerosol contribution to particulate pollution during haze events in China
Ru-Jin Huang,Yan-Lin Zhang,Carlo Bozzetti,Kin Fai Ho,Junji Cao,Yongming Han,Kaspar R. Daellenbach,Jay G. Slowik,Stephen Matthew Platt,Francesco Canonaco,Peter Zotter,Robert Wolf,Simone M. Pieber,Emily A. Bruns,Monica Crippa,Giancarlo Ciarelli,Andrea Piazzalunga,Margit Schwikowski,Gülcin Abbaszade,Jürgen Schnelle-Kreis,Ralf Zimmermann,Zhisheng An,Sönke Szidat,Urs Baltensperger,Imad El Haddad,André S. H. Prévôt +25 more
TL;DR: The results suggest that, in addition to mitigating primary particulate emissions, reducing the emissions of secondary aerosol precursors from fossil fuel combustion and biomass burning is likely to be important for controlling China’s PM2.5 levels and for reducing the environmental, economic and health impacts resulting from particulate pollution.
Journal ArticleDOI
Chemical characterization and source apportionment of PM 2.5 in Beijing: seasonal perspective
Renjian Zhang,J. Jing,Jun Tao,Shih-Chieh Hsu,Gehui Wang,J. J. Cao,Celine S. L. Lee,L. Zhu,Zhongjian Chen,Yue Zhao,Z-Q. Shen +10 more
TL;DR: Wang et al. as mentioned in this paper used chemical mass balance, positive matrix factorization (PMF), trajectory clustering, and potential source contribution function (PSCF) for characterizing aerosol speciation, identifying likely sources, and apportioning contributions from each likely source.
Journal ArticleDOI
TrajStat: GIS-based software that uses various trajectory statistical analysis methods to identify potential sources from long-term air pollution measurement data
TL;DR: Using these methods, the geographic information system (GIS) based software, TrajStat, was developed to view, query, and cluster the trajectories and compute the potential source contribution function (PSCF) and concentration weighted trajectory (CWT) analyses when measurement data are included.
Journal ArticleDOI
Chemical characteristics of PM2.5 and PM10 in haze-fog episodes in Beijing.
TL;DR: The serious air pollution in HF episodes was strongly correlated with the meteorological conditions and the emissions of pollutants from anthropogenic sources.
Journal ArticleDOI
A residence time probability analysis of sulfur concentrations at grand Canyon national park
TL;DR: In this paper, a statistical method is developed to determine the locations of major pollutant sources affecting a distant downwind receptor, provided that air trajectories can be estimated, and a source contribution function is formulated to indicate the relative contribution of different source regions to high concentrations at the receptor.
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High secondary aerosol contribution to particulate pollution during haze events in China
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