Source profiles of volatile organic compounds associated with solvent use in Beijing,China |
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| Authors: | Bin Yuan Min Shao Sihua Lu Bin Wang |
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| Institution: | 1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;2. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;1. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China;2. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;1. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China;2. Chinese Research Academy of Environmental Sciences, Beijing, 100012, China;3. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing 210044, China;4. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing 210044, China;5. College of Environmental Science and Engineering, Nankai University, Weijin Road 94#, Tianjin, China;6. School of Environment, Tsinghua University, Beijing 100084, China;1. College of Environment and Energy, South China University of Technology, University Town, Guangzhou 510006, PR China;2. Shanghai Environmental Monitoring Center, Shanghai 200235, PR China;3. School of International Development, University of East Anglia, Norwich NR4 7TJ, UK;4. Shenzhen Academy of Environmental Science, Shenzhen 51800, PR China |
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| Abstract: | Compositions of volatile organic compound (VOC) emissions from painting applications and printing processes were sampled and measured by gas chromatography–mass spectrometry/flame ionization detection (GC–MS/FID) in Beijing. Toluene and C8 aromatics were the most abundant species, accounting for 76% of the total VOCs emitted from paint applications. The major species in printing emissions included heavier alkanes and aromatics, such as n-nonane, n-decane, n-undecane, toluene, and m/p-xylene. Measurements of VOCs obtained from furniture paint emissions in 2003 and 2007 suggest a quick decline in benzene levels associated with formulation changes in furniture paints during these years. A comparison of VOC source profiles for painting and printing between Beijing and other parts of the world showed significant region-specific discrepancies, probably because of different market demands and environmental standards. We conducted the evaluation of the source reactivities for various VOC emission sources. The ozone formation potential (OFP) for unit mass of VOCs source emissions is the highest for paint applications. Substituting solvent-based paints by water-based in Beijing will lead to an OFP reduction of 152,000 tons per year, which is more than 1/4 of the OFPs for VOCs emissions from vehicle exhaust in the city. |
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