Coadsorption at the air/water interface as source of pollutant transfer to the atmosphere: The case study of benzene/cyclohexane traces and lead |
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| Institution: | 1. Urban Research Plaza & Graduate School of Engineering, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, 558-8585, Osaka, Japan;2. Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, Shakudo 442, 583-0862 Habikino, Osaka, Japan;3. Graduate School of Global Environmental Studies, Kyoto University, Yoshida-Honmachi, Sakyo-ku, 606-8501 Kyoto, Japan;1. Univ. Grenoble Alpes, F-38000 Grenoble, France;2. CEA, LETI, MINATEC Campus, F-38054 Grenoble, France;1. Institute of Atmospheric Physics, Chinese Academy of Sciences, P.O.Box 9804, Beijing 100029, China;2. Institute of Chemical Defence, P.O.Box 1048, Beijing 102205, China;1. Équipe Verres et Céramiques (V&C), ISCR CNRS UMR 6226, Université de Rennes 1, Rennes, 35042, France;2. School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, United Kingdom;3. Institut de Physique de Rennes, CNRS UMR 6251, Université de Rennes 1, Rennes, 35042, France;1. Engineering Photonics, School of Engineering, Cranfield University, United Kingdom;2. Cranfield Biotechnology Centre, School of Engineering, Cranfield University, United Kingdom;1. CSIRO Materials Science and Engineering, PO Box 218, Lindfield, NSW 2070, Australia;2. CSIRO Computational Informatics, 65 Brockway Road, Floreat, WA 6014, Australia |
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| Abstract: | The possible occurrence of polluted aerosols formed by a bubbling mechanism from hydrocarbon-rich aqueous surface layers was investigated in laboratory through the determination of hydrocarbon adsorption from diluted solutions.Benzene and cyclohexane both exhibited positive adsorption. Further to our previous demonstration of lead nitrate coadsorption with benzene near the solubility limit (Sadiki et al., 2003. Atmospheric Environment 37, 3551–3559) the present study revealed a positive coadsorption of lead nitrate with both hydrocarbons, even in diluted solutions.The use of the bubble-column (Wan, Tokunaga, 1998. Environment Science and Technology 32, 3293–3298) as an experimental tool is discussed as well as the physico-chemical mechanisms involved in adsorption and coadsorption processes with their impact on the environment. |
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