Author(s)

C. Sabbioni, N. Ghedini, A. Bonazza, G. Gobbi, M.A. Raggi, M. Gigli & G. Zappia

Abstract

Formate, acetate and oxalate in black crusts on historic monuments C. Sabbioni*, N. Ghedini^, A. Bonazza\ G. Gobbi\ M.A. RaggiM. Gigli' & G. Zappia^ *Istituto di Scienze dell'Atmosfera e dell'Oceano, Bologna, Italy ip. di Scienze Farmaceutiche, Bologna University, Italy ip. di Fisica e di Ingegneria dei Materiali e del Territorio, Ancona Universiy, Italy Abstract Much basic knowledge is still required as to the effects of multipollutants on historic monuments and buildings. Since black crust formation on monuments is due to the deposition of airborne pollutants on areas sheltered from wash out, the discrimination and measurement of their carbon components is fundamental for the partitioning of air pollution sources and the identification of the damage mechanisms involved. Such knowledge is an essential prerequisite for the maintenance of modern buildings, as well as the protection of ancient masonry. The total carbon (Ct) in damage layers can be considered as being com

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