Comparative assessment on colorimetric change of calcareous geomaterials exposed in urban and periurban environmental conditions from iasi city – romania

Climate change, more frequently reported over the last three decades, requires a better understanding of how a series of limestone geomaterials, intensively locally used, react to environmental factors, with direct involvement in the deterioration and degradation of some stone built surfaces. A preliminary assessment of the impact of pollution on these lithic materials is the apparent colorimetric changes. At the same time, the aim of the paper is to highlight the way in which atmospheric pollution works in urban traffic intensities, compared to a series of periurban conditions in the city of Iasi Romania, at the same period and the same weather.