Acharid Abdelhaq, Quentel François, Elléouet Catherine, Olier René, Privat Mireille
UMR CNRS 6521, Département de Chimie, Université de Bretagne Occidentale, 6 Av. Le Gorgeu, CS 93837, 29238 Brest Cedex 3, France.
Chemosphere. 2006 Feb;62(6):989-97. doi: 10.1016/j.chemosphere.2005.06.021. Epub 2005 Aug 9.
The weak solubility of carbofuran allows adsorption at the air/water interface. Carbofuran-rich layers can then induce the coadsorption of metallic salts such as lead nitrate; on the other hand, when carbofuran is missing, no adsorption of this salt takes place. This phenomenon was quantitatively studied through surface tension measurements under concentration conditions close to the environmental ones. Heavy metal salt adsorbed about ten times more than carbofuran. Evidence was then provided that the simultaneous presence of both pollutants in water favours their adsorption and passing from water to the atmosphere through mechanisms such as bubbling.
克百威的低溶解度使其能够吸附在空气/水界面。富含克百威的层随后可诱导金属盐如硝酸铅的共吸附；另一方面，当没有克百威时，这种盐不会发生吸附。通过在接近环境浓度条件下的表面张力测量对这一现象进行了定量研究。重金属盐的吸附量比克百威多约十倍。随后有证据表明，水中这两种污染物同时存在有利于它们的吸附，并通过鼓泡等机制从水转移到大气中。
