International co-operative programme on materials, including historic and cultural monuments. Final environmental data report November 1997 to October 2001.

This report presents the database for the second phase of the ECE ICP material programme. The report presents the available data for the four exposure years 1997/98, 1998/99, 1999/00 and 2000/01as yearly and monthly data and the mean values for the exposure periods. The report evaluates of the changes in the concentrations as trend analysis and the spread in the yearly mean values for the exposure sites.