Abstract : The METROPOLIS network was created in July 2002, under the 5th Framework Programme, to respond to the need for an overall, cross-sectoral assessment of the state of the art of measurements and monitoring systems in the environmental field in Europe. The objectives of Metropolis include: - gathering information and knowledge about the problems/shortcomings that we face today in environmental monitoring ; - identifying the fields where research and further work are needed in order to improve the quality and comparability of environmental data across Europe.
