L. M. Zeng

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Beijing experiences air pollution such that the sky overhead is gray much of the time even on cloudless days. In order to understand the cause of this problem, the aerosol light scattering coefficient Cysp and absorption coefficient (Jap were measured under dry conditions (instrumental relative humidity < 40%) during a 1-week intensive field sampling period(More)
  • D L Yue, M Hu, Z J Wu, S Guo, M T Wen, A Nowak +8 others
  • 2010
In order to characterize the features of particulate pollution in the Pearl River Delta (PRD) in the summer, continuous measurements of particle number size distributions and chemical compositions were simultaneously performed at Guangzhou urban site (GZ) and Back-garden downwind regional site (BG) in July 2006. Particle number concentration from 20 nm to(More)
  • D L Yue, M Hu, Z J Wu, S Guo, M T Wen, A Nowak +8 others
  • 2010
Atmospheric Chemistry and Physics Discussions This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract In order to characterize the features of particulate pollution in the Pearl River Delta (PRD) in the summer, continuous measurements(More)
  • J Li, S D Xie, L M Zeng, L Y Li, Y Q Li, R R Wu
  • 2015
This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract Ambient volatile organic compounds (VOCs) were measured using an online system, gas chromatography–mass spectrometry/flame ionization detector (GC-MS/FID), in Beijing, China,(More)
  • Z J Wu, J Zheng, D J Shang, Z F Du, Y S Wu, L M Zeng +2 others
  • 2015
This discussion paper is/has been under review for the journal Atmospheric Chemistry and Physics (ACP). Please refer to the corresponding final paper in ACP if available. Abstract Simultaneous measurements of particle number size distribution, particle hygroscopic properties, and size-resolved chemical composition were made during the summer of 2014 in(More)
Interferon (IFN)-λ3, a member of the type III IFN family, is a pleiotropic cytokine that exhibits potent antiproliferative, antiviral, and immunoregulatory activities. For further functional study of IFN-λ3, we developed an efficient procedure that includes cloning, expression, and purification to obtain relatively large quantity of mouse IFN-λ3 fusion(More)
Carbonyl compounds are important intermediates in atmospheric photochemistry. To explore the relative contributions of primary and secondary carbonyl sources, car-bonyls and other volatile organic compounds (VOCs) were measured at an urban site in both winter and summer in Beijing. The positive matrix factorization (PMF) model was used for source(More)