Europe
Association for the monitoring and the study of atmospheric pollution in Alsace, France
Atmospheric pollution, air quality legislation, noise pollution, climate change and meteorlogical information. In Catalan
Including detailed site maps, for two national networks
Environment Daily - European environmental information
The Republic of Ireland's environmental information service
Federal Environmental Agency of Germany
An extensive site covering their many activities, in both German and English
IIASA - Atmospheric Pollution Programme
International Institute for Applied Systems Analysis
In Belgium, which has daily ozone values over the summer, as well as historical data. Pages in Dutch, French, German and English
The Dutch National Institute of Public Health and the Environment pages
State of the Environment Norway 1997
A wide range of Norwegian environmental information, including acid deposition
Swedish Environmental Protection Agency
The public agency in Sweden that has an overview of conditions in the environment and progress in environmental policy
Swedish Environmental Research Institute. Up-to-date summaries of current air quality and real-time monitoring data
Stockholm - Uppsala County Air Quality Management Association
Responsible for the coordination of air quality monitoring in the region
Publishes online air quality data for the state of Baden-Wuerttemberg, Germany