title: Coadsorption of carbofuran and lead at the air/water interface. Possible occurrence of non-volatile pollutant cotransfer to the atmosphere.
abstract: 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.
authors.affiliation: UMR CNRS 6521, Département de Chimie, Université de Bretagne Occidentale, 6 Av. Le Gorgeu, CS 93837, 29238 Brest Cedex 3, France.
authors.forename: Abdelhaq
authors.initials: A
authors.lastname: Acharid
authors.forename: François
authors.initials: F
authors.lastname: Quentel
authors.forename: Catherine
authors.initials: C
authors.lastname: Elléouet
authors.forename: René
authors.initials: R
authors.lastname: Olier
authors.forename: Mireille
authors.initials: M
authors.lastname: Privat
mesh_terms: D000327:Adsorption; D000336:Aerosols; D000388:Air; D002235:Carbofuran / Q000737:chemistry*; D007306:Insecticides / Q000737:chemistry*; D007854:Lead / Q000737:chemistry*; D009566:Nitrates / Q000737:chemistry*; D013500:Surface Tension; D014867:Water / Q000737:chemistry; D014874:Water Pollutants, Chemical; D014919:Wind
chemical_list: D000336:Aerosols; D007306:Insecticides; D009566:Nitrates; D014874:Water Pollutants, Chemical; D014867:Water; D007854:Lead; C017461:lead nitrate; D002235:Carbofuran