THOR is a comprehensive air pollution forecast system, combining several air pollution models and one air forecast model. The system is used to produce operational 3-day air pollution forecasts, four times a day.

You can choose between the following:

• Description of the THOR system.
• Air pollution forecast: The current 3-day forecast (in Danish)
• Demonstration of output from the THOR system. This shows all output from a specific day, contrasting the 3-day forecast where only Danish output is shown.