In the last decade environmental monitoring is of increasing interest to provide politicians, stakeholders, decision-makers and the general public with information needed to design an adequate environment policy. Some experience is already gained in the field of technical and chemical based surveillance of environmental impacts and levels of pollutants. To observe the current state of the environment and to survey changes in environmental conditions, nowadays also the consideration of biotic aspects is required. A common approach for long-term monitoring is to design sets of indicators, thus various initiatives are preparing indicator based monitoring concepts.