Measurement of stone decay rates at remote locations using ion exchange resins

Abstract A method is described for measuring decay rates of carbonate stones over a relatively short time scale (months). The development of this method from flat topped microcatchment units where runoff was collected and analysed is described. The improved unit employs ion exchange resins to collect ions of interest while allowing the bulk of the runoff to flow to waste. The resins can later be eluted in the laboratory to produce figures for stone loss. Initial results for four urban sites around Europe are presented.