Incluye bibliografía e índice: páginas 505-527

Chapter 1. Introduction.. Chapter 2. Use and occurence of pharmaceuticals in the environment.. Chapter 3. Fate and effects of pharmaceuticals in the environment.. Chapter 4. Risk assessment and risk management.. Chapter 5. Need for further research.. Chapter 6. Conclusion.. Index

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When the first green wave appeared in the mid and late 1960s, it was considered a fea­ sible task to solve pollution problems. The visible problems were mostly limited to point sources, and a comprehensive "end of the pipe technology" (= environmental technology) was available. It was even seriously discussed in the US that what was called "zero dis­ charge" could be attained by 1985. It became clear in the early 1970S that zero discharge would be too expensive, and that we should also rely on the self purification ability of ecosystems. That called for the development of environmental and ecological models to assess the self purifica­ tion capacity of ecosystems and to set up emission standards, considering the rela­ tionship between impacts and effects in the ecosystems. This idea is illustrated in Fig. 0.1. A model is used to relate an emission to its effect on the ecosystem and its components. The relationship is applied to select a good solution to environmental problems by application of environmental technology. Inglés

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