Neoformation of sulphates as a factor in the deterioration of monuments: isotopic tracing (S, O, B) of internal and external pollution sources (‘BOS’ project)
Duration: 2002–2009 CICRP: Philippe Bromblet, Jean-Marc Vallet Partnerships(s): Bureau of Geological and Mining Research (BRGM), Historic Monuments Research Laboratory (LRMH) and Olivier Rolland, restorer This research programme, launched in 2002 on Bourges Cathedral, has subsequently benefited from financing for a duration of two years (2004–2006) under the National