Final data report September 1987 to August 1995.

Abstract

This report presents the data base for eight years of environmental measurements obtained in the ECE-ICP on materials programme. Beside the data from the eight year it also presents the yearly mean values for the periods 1987-88, 1987-89, 1987-91 and 1987-95. These data correspond with the exposure periods for the materials and are used by the sub-centres for the dose-response analysis. For the gases and acid pollutants a trend analysis of the changes in the concentration has been carried out. For SO2 and the total acid load a decrease in the concentration is observed at almost all sites during the measuring period. The situation is more mixed for NO2, but even for NO2 there has been clear reduction in the NO2 concentrations at several of the test sites. For ozone no significant trend is observed.