History of waste, garbage and raw materials which can be recycled (depending on their value for society); history of waste management; often works from archaeology (garbage as a source).

This project addresses the need to assess the environmental and health risks of chemicals used in food production, since their release into the environment may lead to different ecological effects. The occurrence and effects of selected chemicals on wildlife and humans will be addressed to provide data sets, which are necessary for scientifically-based risk assessment. Special emphasis will be put on the combined effects of environmentally relevant mixtures. A combination of state-of-the-art methods will be applied to predict synergistic and/or additive effects of combined exposure.

The water quality above the city of Linz in regard to chemical, bacteriological and ecological conditions can be regarded as good and an errection of a stream bath is possible without concerns to hygiene. On the right bank, the effluent inlet at St.Margarethen up to the Niebelungenbrücke does not recommend the building of a stream bath at all. On the left bank, pollution starts below the Niebelungenbrücke. Two spots seem to be most considerable for the stream bath: The best option is the right bank in the section of Anschlussmauer and the upper end of St.Margarethen.