Compositions which impart a microbicidal benefit to treated surfaces which compositions comprise (or in certain preferred embodiments may consist essentially of, or may consist of):a copper source material which releases copper ions into the treatment composition, preferably a source of Cu(I) and/or Cu(II) ions preferably at least from about 20%wt. of at least one alcohol, which is preferably a lower alkyl monohydric alcohol) and water, optionally one or more further surfactants, further optionally one or more constituents which impart one or more advantageous technical or aesthetic benefits to the compositions, including one or more detersive surfactants, and water, wherein the compositionhas a pH of at least 4, preferably at least 5, wherein the surface treatment compositions, exhibit a microbicidal or germicidal or antimicrobial effect on treated inanimate surfaces or when used to treat an airspace, e.g. ambient air,. characterized in exhibiting a microbicidal benefit when tested against one or more challenge microorganisms, according to one or more ofthe following standardized test protocols: ASTM E1052 Standard Test Method for Efficacy of Antimicrobial Agents against Viruses in Suspension, or ASTM E1053 Standard Test Method to Assess Virucidal Activity of Chemicals Intended for Disinfection of Inanimate, Nonporous Environmental Surfaces, or European Standard Surface Test, EN13697, or AOAC Germicidal Spray Products as Disinfectant Test Method, AOAC Index, 17th Ed.(2000, preferably against poliovirus type 1 (Sabin) ("PV1")La présente invention concerne des compositions ayant un effet microbicide sur les surfaces traitées et contenant (ou dans certains modes de réalisation préférés pouvant être essentiellement constituées, ou pouvant être constituées de) : un matériau faisant office de source de cuivre qui libère des ions cuivre dans la composition de traitement, de préférence une source dions Cu(I) et/ou Cu(II) de préférence au moins environ 20 % en poids dau mo
