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Carbonaceous and Ionic Components of Atmospheric Fine Particles in Beijing and Their Impact on Atmospheric Visibility
PM2.5 OC EC Ion Visibility
2016/3/25
Ground-based observation of fine particulate matter (PM2.5) in Beijing was carried out continuously in 2006. The
carbonaceous and ionic components, as well as their distribution characteristics and s...
Occurrence of gas phase ammonia in the area of Beijing (China)
gas phase ammonia the area of Beijing (China)
2010/10/11
The atmospheric concentrations of gaseous ammonia have been measured during two field campaigns in the winter and in the summer of 2007 at Beijing (China). These measurements were carried out by means...
Highly time-resolved chemical characterization of atmospheric submicron particles during 2008 Beijing Olympic Games using an Aerodyne High-Resolution Aerosol Mass Spectrometer
chemical characterization atmospheric submicron particles 2008 Beijing Olympic Games an Aerodyne High-Resolution Aerosol Mass Spectrometer
2010/10/11
As part of Campaigns of Air Quality Research in Beijing and Surrounding Region-2008 (CAREBeijing-2008), an Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) was deployed i...
CO2 and its correlation with CO at a rural site near Beijing: implications for combustion efficiency in China
CO2 CO a rural site near Beijing combustion efficiency China
2010/10/11
Although China has surpassed the United States as the world's largest carbon dioxide emitter, in situ measurements of atmospheric CO2 have been sparse in China. This paper analyzes hourly CO2 and its ...
Haze types in Beijing and the influence of agricultural biomass burning
Haze types Beijing agricultural biomass burning
2010/9/14
Emissions from agricultural biomass burning (ABB) in northern China have a significant impact on the regional and global climate. The monthly average aerosol optical depth (AOD) at 550 nm in northern ...
The "Blue Sky Project" was proposed in 1998 to investigate by how much emissions should be reduced to increase blue sky frequency in Beijing, which hosted the Summer Olympics in 2008. This paper focus...
Air quality during the 2008 Beijing Olympics: secondary pollutants and regional impact
Air quality the 2008 Beijing Olympics secondary pollutants regional impact
2010/8/25
This paper presents the first results of the measurements of trace gases and aerosols at three surface sites in and outside Beijing before and during the 2008 Olympics. The official air pollution inde...
The roles of sulfuric acid in new particle formation and growth in the mega-city of Beijing
sulfuric acid new particle formation and growth the mega-city of Beijing
2010/8/13
Simultaneous measurements of gaseous sulfuric acid and particle number size distributions were performed to investigate aerosol nucleation and growth during CAREBeijing-2008. The analysis of the measu...
Impact of dust on tropospheric chemistry over polluted regions: a case study of the Beijing megacity
dust tropospheric chemistry polluted regions the Beijing megacity
2010/8/12
The box model MECCA (Module Efficiently Calculating the Chemistry of the Atmosphere) is extended by incorporating detailed heterogeneous chemistry occurring on mineral aerosol surfaces. The model is u...
IASI observations of seasonal and day-to-day variations of tropospheric ozone over three highly populated areas of China: Beijing, Shanghai, and Hong Kong
IASI observations seasonal and day-to-day variations tropospheric ozone three highly populated areas of China
2010/8/12
IASI observations of tropospheric ozone over the Beijing, Shanghai and Hong Kong areas during one year (2008) have been analysed, demonstrating the capability of space-borne infrared nadir measurement...
The Elemental Composition of Atmospheric Particles at Beijing during Asian Dust Events in Spring 2004
Dust Chemical element composition Asian dust event
2016/3/29
The chemical element composition of dust particles was characterized by the ground-based samples collected at Beijing
in the spring of 2004. Most of mineral and pollutant element concentrations in pa...
Size-resolved aerosol water-soluble ionic compositions in the summer of Beijing: implication of regional secondary formation
aerosol water-soluble ionic compositions regional secondary formation
2010/2/21
To characterize aerosol pollution in Beijing, size-resolved aerosols were collected by MOUDIs during CAREBEIJING-2006 field campaign at Peking University (urban site) and Yufa (upwind rural site). Fin...
An intensive study of aerosol optical properties in Beijing urban area
aerosol optical properties Beijing urban area
2009/12/3
In order to quantify the aerosol impact on climate, a range of aerosol parameters are required. In this paper, two-year of ground-based observations of aerosol optical properties from an urban site in...
Surface ozone trend details and interpretations in Beijing, 2001–2006
Surface ozone trend details interpretations Beijing
2009/12/3
Beijing is a megacity situated in the rapidly developing Beijing-Tianjin-Hebei region of northern China. In this study, we analyze data on ozone and nitrogen oxide levels obtained at six urban sites i...
Source apportionment of fine organic aerosols in Beijing
Source apportionment fine organic aerosols Beijing
2009/11/19
Fine particles (PM2.5, i.e., particles with an aerodynamic diameter of ≤2.5 μm) were collected from the air in August 2005, August–September 2006, and January–February 2007, in Beijing, China. The che...