Chemical composition of rainwater near two Historical monuments: the Thann collegiate (Alsace, France) and the tours cathedral (Indre et Loire, France)

摘要

In the present study, included within the framework of a France-German Research Pro- gram for Conservation of Historical Monuments, the chemical composition of rainwater was investig- ated in Thann (Alsace, France) and in Tours (Indre et Loire, France) between 1992 and 1993. A total of 78 and 24 samples, respectively, were collected, near the Thann collegiate and the Tours cathedral on a weekly basis and analysed for Cl~-, NO~- _3, SO~2- _4, Na~+, NH~+ _4, K~+, Mg~2+ and Ca~2+.