Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Atmos. Chem. Phys. Discuss., 15, 12453–12490, 2015 www.atmos-chem-phys-discuss.net/15/12453/2015/ doi:10.5194/acpd-15-12453-2015 ACPD © Author(s) 2015. CC Attribution 3.0 License. 15, 12453–12490, 2015 This discussion paper is/has been under review for the journal Atmospheric Chemistry VOCs regulated by and Physics (ACP). Please refer to the corresponding final paper in ACP if available. emission control during APEC China Characterization of ambient volatile 2014 organic compounds and their sources J. Li et al. in Beijing, before, during, and Title Page after Asia-Pacific Economic Abstract Introduction Cooperation China 2014 Conclusions References Tables Figures J. Li, S. D. Xie, L. M. Zeng, L. Y. Li, Y. Q. Li, and R. R. Wu College of Environmental Science and Engineering, State Key Joint Laboratory of J I Environmental Simulation and Pollution Control, Peking University, Beijing, China J I Received: 4 March 2015 – Accepted: 5 April 2015 – Published: 29 April 2015 Back Close Correspondence to: S. D. Xie (
[email protected]) Full Screen / Esc Published by Copernicus Publications on behalf of the European Geosciences Union. Printer-friendly Version Interactive Discussion 12453 Discussion Paper | Discussion Paper | Discussion Paper | Discussion Paper | Abstract ACPD Ambient volatile organic compounds (VOCs) were measured using an online system, gas chromatography–mass spectrometry/flame ionization detector (GC-MS/FID), in 15, 12453–12490, 2015 Beijing, China, before, during and after Asia-Pacific Economic Cooperation (APEC) 5 China 2014, when stringent air quality control measures were implemented. Positive VOCs regulated by matrix factorization (PMF) was applied to identify the major VOC contributing sources emission control and their temporal variations.