Rates of air pollution induced surface recession and material loss for a cathedral in Belgium
Faculty of Sciences. Chemistry
Atmospheric environment. - Oxford, 1967 - 1989
, p. 271-287
University of Antwerp
Runoff water samples were taken at the St. Rombout's Cathedral (Mechelen, Belgium), which was constructed with sandy limestones of Balegem and Gobertingen. Gypsum appeared to be the principal deterioration compound. The mean annual surface recession from the cathedral was calculated to be around 20 μm. Yearly several tons of stone material are flushed away from the cathedral with the rain water.