Fig. 6From: NaCl-related weathering of stone: the importance of kinetics and salt mixtures in environmental risk assessmentThe RH distributions (standard boxplots; thick black lines = medians, and box extents showing the upper and lower quartiles (25th and 75th percentiles, respectively) per season in rural (Melle, Belgium, 2016) or urban (central Ghent, Belgium, 2016) environments, demonstrating that the rural/urban difference of expected crystallization is most pronounced in spring and summer since the threshold of 75.5% and 65.5% are crossedBack to article page