Development of a new procedure for the assessment of particulate matter (PM) carbonaceous fraction on stone materials exposed to atmospheric pollution

Abstract The present study deals with the set-up and development of a new methodology to quantify carbonaceous fraction (i.e., OC, organic carbon EC, elemental carbon) in black crusts samples on marble stone surfaces historical buildings monuments exposed outdoor pollution. It is worth noting that OC EC represent one main fractions atmospheric particulate matter and, mainly responsible for colour crusts. same method has been applied resuspend known quantities mock-up specimens suitably realized crusts’ formation process starting from precursors process, i.e., PM SO 2 , submitting them an accelerated aging process.