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Coadsorption at the air/water interface likely explains some pollutants transfer to the atmosphere: Benzene and lead case

Abstract : This study attempts to evidence a physical interfacial mechanism for the passing of some non-volatile harmful molecules from water, where they are dissolved, to the atmosphere. The idea developed here is that an organic substance, at its solubility limit, forms a surface layer whose properties induce the coadsorption of another dissolved substance; both are then able to pass to the atmosphere by a bubbling mechanism. Experiments were made with benzene close of its solubility limit in an aqueous solution of lead nitrate, which is non-volatile and normally does not adsorb at water surface. Coadsorption really occurred. The impact of such a mechanism on the environment is discussed. © 2003 Elsevier Science Ltd. All rights reserved.
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https://hal.univ-brest.fr/hal-01763897
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Submitted on : Wednesday, April 11, 2018 - 2:59:13 PM
Last modification on : Monday, October 11, 2021 - 2:22:08 PM

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M. Sadiki, François Quentel, Catherine Elleouet, J.-P. Huruguen, J. Jestin, et al.. Coadsorption at the air/water interface likely explains some pollutants transfer to the atmosphere: Benzene and lead case. Atmospheric Environment, 2003, 37 (25), pp.3551-3559. ⟨10.1016/S1352-2310(03)00362-5⟩. ⟨hal-01763897⟩

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