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Characteristics of PM 2.5 speciation in representative megacities and across China
Abstract. Based on PM2.5 chemical data sets from literature and from our surface observations, chemical species and reconstructed speciation of PM2.5 in representative Chinese megacities and acrossExpand
Biomass burning contribution to Beijing aerosol
Abstract. Biomass burning, the largest global source of elemental carbon (EC) and primary organic carbon (OC), is strongly associated with many subjects of great scientific concern, such as secondaryExpand
Exploring the severe winter haze in Beijing: the impact of synoptic weather, regional transport and heterogeneous reactions
Abstract. Extreme haze episodes repeatedly shrouded Beijing during the winter of 2012–2013, causing major environmental and health problems. To better understand these extreme events, we performed aExpand
Mass absorption efficiency of elemental carbon and water-soluble organic carbon in Beijing, China
Abstract. The mass absorption efficiency (MAE) of elemental carbon (EC) in Beijing was quantified using a thermal-optical carbon analyzer. The MAE measured at 632 nm was 8.45±1.71 and 9.41±1.92 m2Expand
Identification and estimate of biomass burning contribution to the urban aerosol organic carbon concentrations in Beijing
Abstract Daily particulate matter samples were collected during 1 year from 7 November 1997 to 31 October 1998 in Beijing area, at two monitoring sites, the Ming Tomb (a background site) situatedExpand
Concentration and chemical characteristics of PM2.5 in Beijing, China: 2001-2002.
  • F. Duan, K. He, +5 authors P. Mulawa
  • Chemistry, Medicine
  • The Science of the total environment
  • 15 February 2006
Weekly PM2.5 samples were simultaneously collected at a semi-residential (Tsinghua University) and a downtown (Chegongzhuang) site in Beijing from August 2001 through September 2002. The ambient massExpand
Chemical characteristics of PM2.5 during a typical haze episode in Guangzhou.
The result illustrated that the serious air pollution in haze episodes was strongly correlated with the meteorological conditions; the shorter air masses transport distance, the worse air quality and visibility in Guangzhou, indicating the strong domination of local sources contributing to haze formation. Expand
Enhanced sulfate formation during China's severe winter haze episode in January 2013 missing from current models
A regional haze with daily PM2.5 (fine particulate matters with diameters less than 2.5 µm) exceeding 500 µg/m3 lasted for several days in January 2013 over North China, offering an opportunity toExpand
Heterogeneous chemistry: a mechanism missing in current models to explain secondary inorganic aerosol formation during the January 2013 haze episode in North China
Abstract. Severe regional haze pollution events occurred in eastern and central China in January 2013, which had adverse effects on the environment and public health. Extremely high levels ofExpand
A yearlong study of water-soluble organic carbon in Beijing II: Light absorption properties
Abstract Light absorption properties of water-soluble organic carbon (WSOC) in Beijing were investigated by 24 h-averaged fine particulate matter (PM2.5) samples collected from October 2010 toExpand